eduKateSG · Why Science?
Study the whole emergency-care journey—connecting calls, dispatch, field care, transport, emergency departments, community pathways, data and implementation
A fact-checked guide to the Duke-NUS Pre-Hospital & Emergency Research Centre and the systems science behind safer time-critical care.
Duke-NUS describes PERC as a collaboration involving the SingHealth Duke-NUS Academic Medical Centre, National Healthcare Group, National University Health System, the Ministry of Health Unit for Prehospital Emergency Care and the Singapore Civil Defence Force.
PERC’s current official research page lists six areas: resuscitation, systems research, clinical research, artificial intelligence and machine learning, community interventions and global health studies.
Did you know? Emergency response time is made of several clocks, and improving one interval may not improve the outcome unless the whole pathway works.
This article is educational and does not teach emergency procedures. Follow official local instructions and contact emergency services in a real emergency. Sources were checked 11 November 2026.
Chapter index
Chapters 1–9: pre-hospital care, emergency medical services, dispatch, response intervals, triage, handovers, resuscitation, registries, system outcomes
Chapters 10–17: clinical research, artificial intelligence, community interventions, global health, implementation, privacy, equity and evidence receipts
Care moves from community recognition through dispatch, field care, hospital and follow-up. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 1 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Define handovers and accountable owners. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
One fast segment cannot compensate for every weak link. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Map the emergency-care continuum” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Draw a pathway map. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 1 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
Case definitions determine who enters a study and comparison. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 2 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Record inclusion, acuity, place and time. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
Dispatch codes may differ from final diagnoses. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Define the emergency population” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Compare two definitions. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 2 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
Call processing, dispatch, travel, scene and transport are distinct intervals. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 3 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Timestamp each transition consistently. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
One average response time can hide bottlenecks. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Separate the response clocks” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Build a clock diagram. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 3 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
Outcomes include survival, function, experience, safety and resource use. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 4 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Choose timing and measures before analysis. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
Shorter time does not always mean better recovery. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Measure outcomes that matter” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Create an outcome ladder. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 4 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
| Evidence move | What to record | What it cannot prove alone |
|---|---|---|
| Pathway question | Population, variable, unit and time window | A definition does not establish a result |
| Comparison | Baseline, comparator and uncertainty | Association alone does not establish cause |
| Decision boundary | Owner, trigger, review and escalation | A model does not replace accountable judgement |
Registries support repeated system learning across cases and sites. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 5 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Use data dictionaries, audits and linkage rules. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
A registry contains recorded cases, not every event. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Build reliable registries” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Draft a data dictionary. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 5 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
Resuscitation outcomes depend on recognition, bystander action, dispatch and care. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 6 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Measure the chain and patient-centred outcomes. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
A single intervention rarely explains the whole result. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Study resuscitation systems” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Map a chain of survival. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 6 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
Triage allocates response based on limited early information. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 7 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Test sensitivity, specificity and consequences. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
Perfect classification is unrealistic. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Evaluate triage and dispatch” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Build a confusion matrix. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 7 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
Handovers transfer information, responsibility and urgency. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 8 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Standardise critical content and closed-loop confirmation. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
A form alone cannot create shared understanding. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Improve clinical handovers” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Design a handover card. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 8 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
| Evidence move | What to record | What it cannot prove alone |
|---|---|---|
| Measurement question | Population, variable, unit and time window | A definition does not establish a result |
| Comparison | Baseline, comparator and uncertainty | Association alone does not establish cause |
| Decision boundary | Owner, trigger, review and escalation | A model does not replace accountable judgement |
Simulation can expose workflow and communication failures safely. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 9 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Define scenario, measures and debrief method. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
Simulation performance is not field competency. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Use simulation for systems learning” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Plan a tabletop exercise. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 9 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
Emergency studies test treatments within severe time and consent constraints. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 10 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Use justified designs and safety monitoring. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
Association in registry data does not establish treatment effect. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Study clinical interventions” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Match designs to questions. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 10 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
Models may support prediction, classification or resource planning. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 11 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Validate temporally, geographically and prospectively. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
Accuracy alone does not prove safer decisions. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Apply AI and machine learning” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Audit a fictional model. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 11 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
Public access, education and responder networks can influence early care. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 12 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Measure reach, fidelity, burden and outcomes. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
Awareness does not guarantee action. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Design community interventions” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Plan a community evaluation. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 12 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
| Evidence move | What to record | What it cannot prove alone |
|---|---|---|
| Intervention question | Population, variable, unit and time window | A definition does not establish a result |
| Comparison | Baseline, comparator and uncertainty | Association alone does not establish cause |
| Decision boundary | Owner, trigger, review and escalation | A model does not replace accountable judgement |
Alternative pathways may connect patients to suitable services. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 13 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Track safety, escalation and continuity. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
Avoided transport is not automatically a good outcome. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Research evolving models of care” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Build a pathway safety net. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 13 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
Global comparisons reveal variation in context and practice. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 14 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Harmonise definitions while preserving local meaning. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
A model from one city may not transfer directly. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Learn across health systems” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Compare two fictional systems. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 14 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
Emergency data are sensitive and often collected under pressure. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 15 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Minimise access, document linkage and review purpose. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
De-identification may not remove every risk. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Protect privacy and governance” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Create a governance checklist. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 15 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
Changes must work across locations, languages and patient groups. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 16 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Monitor adoption, subgroup effects and unintended harm. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
Average improvement can hide unequal access. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Test implementation and equity” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Run an equity audit. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 16 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
The receipt links population, clocks, intervention, data, analysis and decision. Pre-hospital and emergency research studies a care system that must make time-critical decisions before, during and after hospital arrival. Duke-NUS describes PERC as a multi-institutional collaboration focused on integrating pre-hospital, hospital and community care. Chapter 17 connects patient need, dispatch, field care, transport, emergency departments, follow-up and system learning without reducing success to speed alone.
Archive definitions, code, versions and exceptions. A defensible study defines the population, call type, location, time interval, intervention, comparator, outcome, missing data and operational context. Researchers may combine registries, clinical records, dispatch data, interviews, simulation and implementation studies. Because response times and outcomes are shaped by geography, case mix and system design, comparisons need adjustment and clearly defined clocks.
Documentation cannot eliminate operational uncertainty. The safety boundary is firm. A statistical model does not dispatch an ambulance, a classroom simulation does not teach resuscitation competency, and an observed association does not establish which operational change will save lives. Emergency care remains governed by trained services, clinical protocols, privacy rules and accountable public authorities. Never delay or replace emergency help to test an idea.
Investigate “Keep an emergency-systems receipt” with a fictional pathway map or public aggregate dataset. Define the clock, handovers, outcome and possible bottleneck, then compare two safe policy scenarios. Assemble a one-page receipt. Do not stage dangerous incidents, contact emergency lines, imitate clinical procedures or use identifiable patient information. Follow local emergency instructions in any real event.
Did you know? “Response time” can hide several intervals: call answering, triage, dispatch, travel, scene care and transport are different clocks with different owners. Chapter 17 shows why a single average can conceal variation by location or case type and why system improvement needs both clinical outcomes and operational measures.
Capabilities include emergency medicine, nursing, paramedicine, epidemiology, operations research, data science, artificial intelligence, human factors, public health and implementation science. Current professional roles require formal qualifications and supervised training. School science contributes careful timing, systems diagrams, probability, ethical data use and calm communication under uncertainty.
| Evidence move | What to record | What it cannot prove alone |
|---|---|---|
| Emergency system question | Population, variable, unit and time window | A definition does not establish a result |
| Comparison | Baseline, comparator and uncertainty | Association alone does not establish cause |
| Decision boundary | Owner, trigger, review and escalation | A model does not replace accountable judgement |
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Primary sources and verification date
Source status for Why Science? | Pre-Hospital & Emergency Research Centre was checked 11 November 2026. Research priorities, programmes, recruitment, facilities and participation routes can change; use the linked official owner for the current edition.
- Duke-NUS PERC overview — Official collaboration, mission and research context.
- Research at PERC — Official six current research areas.
- Duke-NUS research centres — Official current centre listing.
- Singapore Civil Defence Force emergency medical services — Official national EMS information and emergency-care context.
Continue the evidence journey
Emergency-care science improves lives when the whole pathway is measured, changes are tested in context and speed remains connected to safety, outcomes and equity. Families considering science tuition or a science tutor can use the same evidence questions: what will the learner practise, what feedback will they receive, and how will progress be shown?
