Acute cardiac care & resuscitation
Association between air pollutants and out-of-hospital cardiac arrest: a 5-year time series analysis
Main finding · OHCA per 10 μg/m³ increase in PM2.5Result — go to the resultRelative risk 1.026 95% CI 1.001–1.053Authors' conclusion
Improving the levels of PM2.5, NO2, and O3 could decrease the risk of OHCA and the demand for emergency medical service related to PM2.5 exposure.
Study context
- Population
- Out-of-hospital cardiac arrest (OHCA) events reported to the Shenzhen Emergency Center, Shenzhen, Chinapatients who experienced OHCA
- Participants
- 16,769 participants
- Comparison
- Association among PM2.5, O3, PM10, CO, NO2, SO2 and OHCA
- Outcome
- OHCA per 10 μg/m³ increase in PM2.5
- Follow-up
- Lag Day 1
Methodological details5-year
- 5-year
Main finding
As reported in the abstract
Relative risk
1.026
95% CI 1.001–1.053
10 μg/m³ increase in PM2.5
RR 1.026 (95% CI 1.001–1.053)
Per 10 μg/m³ increase in PM2.5, as printed
Further findings
| Outcome | RR (95% CI) | |
|---|---|---|
| OHCA per 10 μg/m³ increase in PM10, onset dayImmediate risk | 1.02 (1.005–1.036) | |
| OHCA per 10 μg/m³ increase in PM10, cumulative · lag Day 1Cumulative risk | 1.021 (1.003–1.039) | |
| 0.512Relative risk (log scale) |
OHCA with NO2, O3, SO2 and CO exposure · subsequent 5 days
- An increased risk of OHCA was associated with NO2 and O3 exposure
- A reduced risk of OHCA was associated with SO2 and CO exposure
PM2.5 and OHCA by gender and arrest rhythm (subgroup)
- The relationship between PM2.5 and OHCA varied by gender and arrest rhythm
Decrease in OHCA incidence attributable to PM2.5 exposure · lag Day 1
- Reduction in average daily PM2.5 by 1 µg/m³
- 4.60%
- Reduction in average daily PM2.5 by 3 µg/m³
- 18.41%
Original publication
Association between air pollutants and out-of-hospital cardiac arrest: a 5-year time series analysis. Eur Heart J Acute Cardiovasc Care. Published 23 January 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →