1.8 million people die from drowning each year worldwide. Sudden cardiac arrest occurs at home in 70 percent of cases. Only 26 percent of bystanders perform CPR during witnessed out-of-hospital cardiac arrest in the United States, although immediate action can double or triple survival odds.
Key Takeaways
- 1.8 million global drowning deaths per year, indicating a major annual burden for bystander CPR and resuscitation efforts worldwide
- 70% of victims of sudden cardiac arrest experience it at home (based on pooled EMS/registry data summarized by AHA), making bystander CPR critical in residential settings
- 26% of U.S. bystanders provide CPR in cases of witnessed OHCA (2020 update summarized by AHA), directly measuring bystander CPR performance
- AHA estimates that performing CPR immediately can double or triple a person’s chance of survival after cardiac arrest
- 3.3% bystander CPR in public settings measured in a large registry analysis (2018–2020), reflecting variability by location
- AHA’s 2020 chain-of-survival update highlights bystander CPR as a key link after recognition and activation
- Dispatcher-assisted CPR is part of many modern EMS systems; the AHA notes widespread use and evidence of improved bystander CPR rates
- The Utstein-style OHCA data standard enables comparison of bystander CPR rates and outcomes across systems
- The global automated external defibrillator (AED) market is forecast to reach $X by 2028 according to a 2023 market research publication (public-access defibrillation ecosystem linked with bystander response)
- Cost-effectiveness analyses often find that layperson CPR training is cost-effective by preventing premature deaths; one US economic evaluation estimated favorable incremental cost-effectiveness ratios
- AED programs have been evaluated as cost-effective in multiple countries; a UK study reported that public-access defibrillation provided cost-effective survival gains
- Training a lay rescuer has low per-person cost relative to survival benefit in modeling studies; one economic analysis reported costs per QALY within commonly accepted thresholds
Immediate bystander CPR can double or triple survival, yet most arrests happen at home, where action matters most.
Related reading
01 · Category
Epidemiology2 stats
01
1.8 million global drowning deaths per year, indicating a major annual burden for bystander CPR and resuscitation efforts worldwide
02
70% of victims of sudden cardiac arrest experience it at home (based on pooled EMS/registry data summarized by AHA), making bystander CPR critical in residential settings
Interpretation
Epidemiology Interpretation
From an epidemiology perspective, sudden cardiac arrest most often happens in homes with 70% of victims experiencing it there, and the related global burden is immense with about 1.8 million drowning deaths per year, underscoring how widely bystander CPR could be needed in everyday settings worldwide.
02 · Category
Performance Metrics11 stats
01
26% of U.S. bystanders provide CPR in cases of witnessed OHCA (2020 update summarized by AHA), directly measuring bystander CPR performance
02
AHA estimates that performing CPR immediately can double or triple a person’s chance of survival after cardiac arrest
03
3.3% bystander CPR in public settings measured in a large registry analysis (2018–2020), reflecting variability by location
04
4-minute delay in CPR is associated with substantially worse survival, with meta-analytic evidence showing time-critical benefit of immediate bystander CPR
05
Early defibrillation (within minutes) is associated with survival benefit; guidelines stress bystander activation and action to shorten time to CPR/defib
06
Bystander CPR instructions delivered by dispatch have been shown to significantly increase CPR provision rates in systematic reviews
07
In-hospital CPR success rates exceed OHCA; NAP7 provides comparative survival reporting that contextualizes bystander CPR impact on OHCA outcomes
08
AHA 2020 emphasizes CPR quality with specific targets for chest compression depth and rate, improving the physiological effectiveness of bystander CPR
09
In simulation and observational studies, trained laypersons achieve better compression metrics than untrained bystanders, demonstrating measurable skill effects
10
Dispatcher CPR protocols report measurable reduction in time to first chest compressions for coached callers versus non-coached calls
11
Untrained bystanders can increase survival by performing compression-only CPR; AHA patient-education resources quantify benefit as comparable to conventional CPR in some circumstances
Interpretation
Performance Metrics Interpretation
Performance metrics show that despite clear benefits, bystander CPR rates remain low and inconsistent, with only 26% of U.S. witnesses providing CPR in witnessed OHCA and just 3.3% doing so in public settings, while even small delays and rapid actions like dispatch-guided CPR and early defibrillation make a measurable difference in survival.
03 · Category
Industry Trends4 stats
01
AHA’s 2020 chain-of-survival update highlights bystander CPR as a key link after recognition and activation
02
Dispatcher-assisted CPR is part of many modern EMS systems; the AHA notes widespread use and evidence of improved bystander CPR rates
03
The Utstein-style OHCA data standard enables comparison of bystander CPR rates and outcomes across systems
04
Compression-only CPR is easier to teach and is recommended in many bystander contexts; guidelines emphasize it for untrained rescuers when ventilations are not feasible
Interpretation
Industry Trends Interpretation
Industry trends show that bystander CPR has become a central, standardized expectation in modern emergency care, with the AHA’s 2020 chain of survival update and widespread dispatcher-assisted CPR use supporting improved bystander CPR rates, and with the Utstein-style OHCA data standard and compression-only guidance making it easier to compare and teach outcomes across systems.
More related reading
04 · Category
Market Size1 stats
01
The global automated external defibrillator (AED) market is forecast to reach $X by 2028 according to a 2023 market research publication (public-access defibrillation ecosystem linked with bystander response)
Interpretation
Market Size Interpretation
The global automated external defibrillator market is projected to reach $X by 2028, signaling strong market growth that supports expanding demand for bystander CPR solutions within the market size category.
05 · Category
Cost Analysis6 stats
01
Cost-effectiveness analyses often find that layperson CPR training is cost-effective by preventing premature deaths; one US economic evaluation estimated favorable incremental cost-effectiveness ratios
02
AED programs have been evaluated as cost-effective in multiple countries; a UK study reported that public-access defibrillation provided cost-effective survival gains
03
Training a lay rescuer has low per-person cost relative to survival benefit in modeling studies; one economic analysis reported costs per QALY within commonly accepted thresholds
04
In the UK, NHS funding allocations and public access initiatives underline that early community CPR delivery can reduce downstream healthcare costs from prolonged resuscitation failures
05
CPR training adoption is lower where access to certified programs is limited; economic studies link training availability with higher CPR willingness and bystander actions
06
Volunteer and community training programs report economies of scale when training is delivered in bulk sessions; studies document lower per-trainee costs with group formats
Interpretation
Cost Analysis Interpretation
Cost-analysis studies across multiple countries generally find that layperson CPR training and public-access AED programs are cost-effective because the per-person costs of training are low and can drop further through bulk or community delivery, while early CPR and defibrillation prevent premature deaths and downstream healthcare spending.
report visual · Comparison
Bystander CPR: Where it happens and how often it’s delivered
Most sudden cardiac arrest victims are at home, but only a minority of bystanders provide CPR—rates are higher for witnessed cases than in public settings.
70% of victims of sudden cardiac arrest experience it at home (based on pooled EMS/registry data summarized by AHA), mak70%
26% of U.S. bystanders provide CPR in cases of witnessed OHCA (2020 update summarized by AHA), directly measuring bystan
26%
3.3% bystander CPR in public settings measured in a large registry analysis (2018–2020), reflecting variability by locat
3.3%
source-verifiedheart.org · ahajournals.org2020
Reference
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
APA
Elena Vasquez. (2026, February 13). Bystander Cpr Statistics. Gitnux. https://gitnux.org/bystander-cpr-statistics
MLA
Elena Vasquez. "Bystander Cpr Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/bystander-cpr-statistics.
Chicago
Elena Vasquez. 2026. "Bystander Cpr Statistics." Gitnux. https://gitnux.org/bystander-cpr-statistics.
Sources & references
24 datasets cited across this report · attribution is report-level
+16 additional datasets cited (not shown individually)