Prevention & lipidsMeta-analysis

Adherence to Continuous Positive Airway Pressure (CPAP) Treatment and the Risk of Recurrent Cardiovascular Events

JAMAPublished

  • Systematic review and individual participant data meta-analysis of randomised trials
  • one-stage and 2-stage individual participant data (IPD) meta-analyses
  • mixed-effect Cox regression

Mean [SD] follow-up 3.25 [1.8] years; mean [SD] CPAP adherence 3.1 {2.4} h/day

Authors' conclusion

Adherence to CPAP was associated with a reduced MACCE recurrence risk, suggesting that treatment adherence is a key factor in secondary cardiovascular prevention in patients with OSA.

Study context

Population
Adults with CVD and obstructive sleep apnea (OSA) (secondary prevention)IPD meta-analysis of SAVE, ISAACC, RICCADSA
Participants
4,186 adults
Comparison
CPAP vs no CPAP
Outcome
First recurrent MACCE

Pooled result

As reported in the abstract

Hazard ratio

1.01

95% CI 0.87–1.17

CPAP vs No CPAP
HR 1.01 (95% CI 0.87–1.17)

Further pooled results

OutcomeHR (95% CI)
MACCE with good adherence to CPAP (≥4 h/day) · on-treatment analysis0.69 (0.52–0.92)
  • MACCE with good adherence to CPAP (≥4 h/day): marginal structural Cox models with inverse probability of treatment weighting

Original publication

Adherence to CPAP Treatment and the Risk of Recurrent Cardiovascular Events. JAMA. Published 3 October 2023. doi:10.1001/jama.2023.17465

Summarised from the published abstract; every number is checked against it