Cardiac arrest & resuscitation

Annual improvement trends in resuscitation outcome of patients defibrillated by laypersons after out-of-hospital cardiac arrests and compression-only resuscitation of laypersons

ResuscitationPublished Population-based nationwide observational study

Main finding · Favorable outcomesResult — go to the resultAdjusted odds ratio 1.23 95% CI 1.13–1.34

Authors' conclusion

In Japan, the outcomes of out-of-hospital cardiac arrest patients who were defibrillated by laypersons were considerably better in compression-only resuscitation of laypersons every year.

Study context

Population
Adults and children with witnessed OHCA defibrillated by laypersons, Japan national database, 2005–2019
Participants
11,402 adults
Exposure
Compression-only cardiopulmonary resuscitation (CPR) vs conventional CPR by laypersons
Outcome
One-month survival and survival with good neurological outcome
Follow-up
One month
Methodological detailsinverse probability weighting using propensity score, multivariate logistic regression, trend analyses
  • Inverse probability weighting using propensity score
  • Multivariate logistic regression
  • Trend analyses

Main finding

Favorable outcomes

Adjusted odds ratio

1.23

95% CI 1.13–1.34

Compression-only CPR vs Conventional CPR
adjusted OR 1.23 (95% CI 1.13–1.34)

As reported in the abstract

Relative risk reduction, compression-only vs conventional
7.6%
NNT, compression-only vs conventional
22.1

Observational data: associations, not effects.

Further findings

Proportion of compression-only resuscitation over time

Increased dramatically, more than 50% from 2012
P < 0.001

Favorable resuscitation outcomes over time

Increased annually
P < 0.001
Favorable outcomes associated with recent years, male sex, younger age and shorter resuscitation start time
Adjusted outcomes better with compression-only resuscitation in most years

Original publication

Annual improvement trends in resuscitation outcome of patients defibrillated by laypersons after out-of-hospital cardiac arrests and compression-only resuscitation of laypersons. Resuscitation. Published 19 December 2022. doi:10.1016/j.resuscitation.2022.12.010

Composed by AI from the published abstract and checked against it. How Briefs are made →

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