Cardiac arrest & resuscitation
The risks of out-of-hospital cardiac arrest and mortality on public holidays and weekends: A time-series study
Authors' conclusion
Public holidays and weekends were associated with increased risk of OHCA and mortality, particularly for traditional holidays such as Chinese New Year and Hari Raya Puasa.
Study context
- Population
- Nationally reported out-of-hospital cardiac arrest (OHCA) cases in a multi-ethnic Asian population, Singapore, 1 April 2010 to 31 December 2021
- Participants
- 28,660 OHCA cases
- Comparison
- Public holidays and weekends vs non-public holidays and weekdays
- Public holidayn = 948
- Weekendn = 8,459
- Outcome
- Risk of OHCA and mortality
Methodological detailsnationwide
- Nationwide
Main finding
As reported in the abstract
- Public holiday vs Non-public holiday · OHCA, Lag 0; SE 0.035
- adjusted RR 1.104; P = 0.004
- Public holiday vs Non-public holiday · OHCA, Lag 1; SE 0.035
- adjusted RR 1.072; P = 0.046
- Public holiday vs Non-public holiday · mortality; SE 0.036
- adjusted RR 1.107; P = 0.004
- Weekend vs Weekdays · OHCA; SE 0.013
- adjusted RR 1.047; P = 0.001
- Weekend vs Weekdays · mortality; SE 0.014
- adjusted RR 1.044; P = 0.002
Further findings
Proportion of OHCA by holiday and day of week
%
- Chinese New Year over 2 days
- 20.4
- Hari Raya Puasa
- 10.3
- Saturday
- 15.0
- Sunday
- 14.5
- Monday
- 14.5
Original publication
The risks of out-of-hospital cardiac arrest and mortality on public holidays and weekends: A time-series study. Resuscitation. Published 5 August 2025. doi:10.
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