Table 1 Characteristics of studies included for the prevalence estimates
Apnoea-hypopnoea index (AHI) | |||
|---|---|---|---|
Mild OSA (AHI ≥5) | Moderate to severe OSA (AHI ≥15) | Severe OSA AHI ≥30) | |
Assessment method | |||
Polysomnography | 7 (44%) | 10 (34%) | 3 (33%) |
Portable monitor | 9 (56%) | 19 (66%) | 6 (67%) |
Timing of assessment (after hospital admission) | |||
Pre-operation | 0 (0%) | 2 (7%) | 0 (0%) |
< 1 week | 8 (50%) | 13 (43%) | 6 (67%) |
1–3 weeks | 4 (25%) | 9 (30%) | 1 (11%) |
> 3 weeks | 4 (25%) | 6(20%) | 2 (22%) |
Gender | |||
Female n cases | 616 (26.9%) | 1567 (18.5%) | 287 (21.1%) |