Observed (O) and expected (E) numbers of people in the sleep apnoea cohort who received a subsequent hospital record of AMD, and of people in the AMD cohort who received a subsequent hospital record of sleep apnoea; observed (Oref) and expected (Eref) numbers of people in the reference cohort who received a subsequent hospital record of AMD or sleep apnoea; standardised rate ratios (RR) and 95% CIs
| Exposure | Outcome | O | E | Oref | Eref | RR (95% CI) |
|---|---|---|---|---|---|---|
| Sleep apnoea | AMD | 539 | 375 | 44 852 | 45 016.0 | 1.44 (1.32 to 1.57) |
| AMD | Sleep apnoea | 405 | 329.2 | 9982 | 10 057.8 | 1.24 (1.12 to 1.37) |
AMD, age-related macular degeneration.