Sudden cardiac arrest (SCA) affects adults in everyday settings, and in high-income countries it occurs in about 1 in 1,000 people over age 35 each year. Survival depends heavily on rhythm and how quickly care begins, including whether a bystander uses an AED before EMS. Risk patterns matter too: coronary heart disease is a leading cause, while smoking, diabetes, and obesity can raise risk. In the sections ahead, explore incidence, survival drivers, and the costs behind prevention and treatment.
Key Takeaways
- US SCA annual cost $30.8 billion in direct medical + indirect
- OHCA survivor lifetime cost $1.2-5 million per patient
- AED public program cost-effectiveness $29,000/QALY at $2,000/device
- In 2023, approximately 350,000 to 450,000 adults experience out-of-hospital cardiac arrest (OHCA) annually in the United States, with survival rates varying by region
- Globally, sudden cardiac arrest (SCA) accounts for 15-20% of all deaths, equating to over 7 million cases yearly according to WHO estimates adjusted for underreporting
- In Europe, the incidence of OHCA is 67-84 per 100,000 person-years, with higher rates in Northern countries like Sweden at 86 per 100,000
- In US, coronary heart disease causes 75% of SCA
- Smoking doubles SCA risk within 2 hours of last cigarette
- Diabetes increases SCA risk by 2-4x, independent of CAD
- Bystander-witnessed OHCA survival to discharge 32.6% if shockable rhythm
- US OHCA 1-year survival 8.8% overall, drops to 5.5% at 5 years
- With bystander AED before EMS, survival 67% for VF OHCA
- In the US, EMS-assessed OHCA incidence 110.8 per 100,000 in 2019, up 3.4% from prior years
- In 2022, American Heart Association reports 356,000 OHCA in US, with 10.4% survival to hospital discharge
- CARES registry 2021: 70% of US OHCA public vs home, but public has 2.5x better survival
Despite high costs and millions of SCA cases, bystander AED use and effective CPR can dramatically improve survival.
Related reading
01 · Category
Economic Impact8 stats
01
US SCA annual cost $30.8 billion in direct medical + indirect
02
OHCA survivor lifetime cost $1.2-5 million per patient
03
AED public program cost-effectiveness $29,000/QALY at $2,000/device
04
CPR training US costs $500 million yearly, saves 1,000 lives
05
ICD implantation $30,000-50,000, prevents 1 SCA per 50 patient-years
06
EMS OHCA transport $25,000average per case US
07
Post-SCA ICU stay $100,000+ per survivor
08
Lost productivity SCA $15 billion US yearly
Interpretation
Economic Impact Interpretation
From an economic impact perspective, saving and treating SCA comes at scale, with the US already spending $30.8 billion annually while strategies like public AED programs deliver about $29,000 per QALY and CPR training can save 1,000 lives for $500 million each year.
02 · Category
Epidemiology29 stats
01
In 2023, approximately 350,000 to 450,000 adults experience out-of-hospital cardiac arrest (OHCA) annually in the United States, with survival rates varying by region
02
Globally, sudden cardiac arrest (SCA) accounts for 15-20% of all deaths, equating to over 7 million cases yearly according to WHO estimates adjusted for underreporting
03
In Europe, the incidence of OHCA is 67-84 per 100,000 person-years, with higher rates in Northern countries like Sweden at 86 per 100,000
04
SCA occurs in about 1 in 1,000 people over age 35 annually in high-income countries, with 50% of cases unwitnessed
05
In Japan, the annual OHCA incidence is 118 per 100,000 population, with 60% occurring at home
06
In Australia, SCA incidence is 51-102 per 100,000, with public place arrests having 2x higher bystander CPR rates
07
In the UK, around 30,000 OHCA cases occur yearly, with only 8% surviving to hospital discharge
08
In Canada, OHCA incidence is 40-140 per 100,000, varying by urban vs rural settings
09
In India, estimated SCA cases exceed 1 million annually due to population size, though underreported by 70%
10
In Brazil, urban SCA incidence is 48 per 100,000, with shockable rhythms in only 20% of cases
11
In South Africa, SCA incidence is 100-200 per 100,000 in urban areas, limited by EMS response times averaging 25 minutes
12
In China, over 544,000 SCA events yearly, with bystander CPR at 3-5% nationally
13
In Germany, OHCA rate is 50-70 per 100,000, with 25% VF/VT initial rhythms
14
In France, 40,000-50,000 SCA cases per year, with 1-year survival at 5-10%
15
In Italy, SCA incidence 70-100 per 100,000, higher in males by 2:1 ratio
16
In Spain, approximately 30,000 OHCA annually, with AED availability in 10% of public arrests
17
In the Netherlands, OHCA incidence 54 per 100,000, with 80% AED coverage in public
18
In Denmark, 61 per 100,000 OHCA rate, bystander CPR in 72% of cases
19
In Sweden, 47 per 100,000 SCA, with national registry covering 99% of cases
20
In Norway, OHCA 52 per 100,000, survival to discharge 10.6%
21
In Finland, 69 per 100,000, with cold weather increasing incidence by 15%
22
In Belgium, 45-60 per 100,000 OHCA, urban higher than rural by 30%
23
In Switzerland, 78 per 100,000, with high AED use at 18%
24
In Austria, SCA around 50 per 100,000, with 60% occurring between 8am-6pm
25
In Portugal, estimated 10,000 SCA yearly, bystander intervention low at 15%
26
In Greece, OHCA 37 per 100,000, with only 5% AED accessibility
27
In Turkey, urban SCA 90 per 100,000, rural lower by 40%
28
In Russia, estimated 200,000 SCA annually, survival <2% due to EMS delays
29
In Poland, OHCA 65 per 100,000, bystander CPR 35%
Interpretation
Epidemiology Interpretation
Epidemiology data show that sudden cardiac arrest affects millions globally each year, with over 7 million deaths estimated by WHO and Europe reporting 67 to 84 OHCA cases per 100,000 person-years, underscoring that SCA is a widespread, high-burden public health problem across regions.
03 · Category
Risk Factors25 stats
01
In US, coronary heart disease causes 75% of SCA
02
Smoking doubles SCA risk within 2 hours of last cigarette
03
Diabetes increases SCA risk by 2-4x, independent of CAD
04
Obesity (BMI>30) raises SCA odds by 1.5x, visceral fat strongest predictor
05
Hypertension present in 60% of SCA victims, risk up 1.8x uncontrolled
06
Family history of SCA triples risk under age 50
07
Chronic kidney disease stage 4-5 SCA risk 5-10x higher
08
Alcohol binge drinking (>5 drinks) increases SCA risk 3x acutely
09
Sleep apnea untreated raises SCA risk 2.3x
10
Illicit cocaine use multiplies SCA risk 6x via arrhythmias
11
Hypercholesterolemia LDL>160 mg/dL SCA risk 1.7x
12
Physical inactivity <500 MET-min/week doubles SCA risk
13
Prior myocardial infarction increases SCA risk 4-6x in first year
14
Heart failure ejection fraction <35% SCA risk 5x annual
15
Long QT syndrome genetic mutations confer 1% annual SCA risk
16
Brugada syndrome SCA risk 0.5-1% yearly untreated
17
ARVC annual SCA risk 2.3% in probands
18
Hypertrophic cardiomyopathy SCA risk 1% per year in adults
19
Electrolyte imbalance (hypokalemia <3.5 mEq/L) SCA risk 2x
20
COPD severe FEV1<50% predicted SCA risk 1.8x
21
Depression treated with TCAs increases SCA 3.5x
22
HIV infection SCA risk 4.5x adjusted for comorbidities
23
Radiation therapy to chest SCA risk up 7.4x long-term
24
Stimulant medications ADHD SCA risk 1.8x in youth
25
Hypothermia <35C doubles VF SCA risk
Interpretation
Risk Factors Interpretation
Risk factors for SCA are strongly driven by common cardiometabolic threats, with smoking doubling risk within 2 hours and diabetes increasing it 2 to 4 times even without CAD, while obesity and hypertension further compound the danger.
More related reading
04 · Category
Survival Rates27 stats
01
Bystander-witnessed OHCA survival to discharge 32.6% if shockable rhythm
02
US OHCA 1-year survival 8.8% overall, drops to 5.5% at 5 years
03
With bystander AED before EMS, survival 67% for VF OHCA
04
EMS-treated OHCA neurologically intact survival 8.2%
05
IHCA survival to discharge 25.8% in 2022 US, up from 18.4% in 2000
06
Pediatric OHCA survival 6.7% to discharge, 4.2% good neuro outcome
07
Public OHCA vs home: 34% vs 9% survival if bystander CPR+AED
08
Post-arrest PCI improves 1-year survival to 57% vs 33% no PCI
09
ECPR for refractory OHCA survival 28% at 30 days
10
TTM 33C vs 36C survival no difference, but neuro intact 33% both
11
Unwitnessed OHCA survival <2%, witnessed 15-20%
12
Nighttime OHCA survival 10% lower than daytime
13
Asystole initial rhythm survival 1-2%, PEA 5-10%
14
Female OHCA survival 7.5% vs male 9.1%
15
Rural OHCA survival 6% vs urban 10%
16
Black patients OHCA survival 6.7% vs white 9.8%
17
>80yo OHCA survival 5.4%, <50yo 15.2%
18
Opioid overdose OHCA survival 12.5% with naloxone
19
Workplace IHCA survival 64%
20
Sports SCA survival 89% with AED on field
21
Airport SCA survival 37.4%
22
Nursing home OHCA survival 2.7%
23
Casino SCA survival 53.1%
24
35% of OHCA patients survive to hospital discharge when an AED is used before EMS arrives
25
40% of OHCA patients survive to hospital discharge when public-access defibrillation occurs before EMS arrives
26
12% of OHCA patients survive to hospital discharge when the arrest occurs at home
27
23% of OHCA patients survive to hospital discharge when the arrest occurs in a public place
Interpretation
Survival Rates Interpretation
In the survival rates for SCA, outcomes vary dramatically by context, such as bystander AED use boosting VF OHCA survival to 67%, while overall US OHCA survival is just 8.8% at 1 year and falls to 5.5% at 5 years.
report visual · Comparison
Survival to Hospital Discharge (OHCA) — Where Care/Location Matters
Survival to hospital discharge is higher when public-access defibrillation happens before EMS arrives (leader), versus AED-before-EMS and public-place/home subgroups, showing a cle
40% of OHCA patients survive to hospital discharge when public-access defibrillation occurs before EMS arrives40%
35% of OHCA patients survive to hospital discharge when an AED is used before EMS arrives
35%
23% of OHCA patients survive to hospital discharge when the arrest occurs in a public place
23%
12% of OHCA patients survive to hospital discharge when the arrest occurs at home
12%
source-verifiedpubmed.ncbi.nlm.nih.gov2010
05 · Category
Us Statistics29 stats
01
In the US, EMS-assessed OHCA incidence 110.8 per 100,000 in 2019, up 3.4% from prior years
02
In 2022, American Heart Association reports 356,000 OHCA in US, with 10.4% survival to hospital discharge
03
CARES registry 2021: 70% of US OHCA public vs home, but public has 2.5x better survival
04
US ventricular fibrillation SCA 25-50% initial rhythm in witnessed cases
05
In US adults >35, SCA risk 1 per 1,000 yearly, higher in blacks by 1.5x
06
US pediatric SCA 15,000 yearly, 88% non-shockable rhythms
07
In US, 90% of SCA fatal if not treated immediately
08
ROC data: US bystander CPR rose to 41.8% in 2021 from 35.7% in 2017
09
US AED use in public OHCA increased to 11.5% in 2021
10
In US, average EMS response time for OHCA 7-8 minutes
11
US OHCA survival 9.1% overall in 2019, 36.3% for bystander-witnessed shockable
12
In 45 US states, OHCA incidence 96.6 per 100,000 treated by EMS
13
US workplace SCA 10,000 yearly, survival 57% due to rapid response
14
In US nursing homes, SCA incidence 20x higher than community
15
US air travel SCA 1 per 604,000 passengers, defibrillators on 90% flights
16
In US sports, SCA 1 per 50,000-200,000 participant hours, mostly males
17
US fire stations OHCA 1,300 yearly, bystander AED use 40%
18
In US casinos, SCA survival 53% with on-site AEDs
19
US residential SCA 70% of total, survival 6.4%
20
In US, SCA peak hours 6am-10am and 4pm-8pm
21
US male OHCA incidence 1.5x female
22
In US >65yo, SCA accounts for 60% of cases
23
US black population OHCA incidence 20% higher, survival 20% lower
24
In US urban areas, OHCA 110 per 100,000 vs 80 rural
25
US Hispanic OHCA bystander CPR 30% less than non-Hispanic white
26
In US, 45% OHCA shockable rhythm decline over 10 years
27
US pediatric non-traumatic SCA survival 2.2%
28
In US airports, AED-equipped, SCA survival 39%
29
US opioid-related SCA increased 9.2-fold from 2010-2020
Interpretation
Us Statistics Interpretation
US statistics show that even though EMS-assessed OHCA rose to 110.8 per 100,000 in 2019 and the American Heart Association recorded 356,000 cases in 2022, survival remains low at 10.4% overall, with public locations outperforming home even though most events occur there.
Reference
Cite This Report
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APA
Priyanka Sharma. (2026, February 13). Sca Statistics. Gitnux. https://gitnux.org/sca-statistics
MLA
Priyanka Sharma. "Sca Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/sca-statistics.
Chicago
Priyanka Sharma. 2026. "Sca Statistics." Gitnux. https://gitnux.org/sca-statistics.
Sources & references
3 datasets cited across this report · attribution is report-level
+2 additional datasets cited (not shown individually)