Prevalence and odds ratio for number and type of comorbidity
| COPD, n (%) | No COPD, n (%) | Odds ratio (95% CI)a | |
|---|---|---|---|
| Patients | 51 928 | 1 220 757 | |
| Total number of physical and mental health conditions | |||
| 0 | 7264 (14.0) | 597 363 (48.9) | 0.16 (0.15 to 0.17) |
| 1 | 9305 (17.9) | 271 751 (22.3) | 0.81 (0.79 to 0.83) |
| 2 | 9194 (17.7) | 150 858 (12.4) | 1.38 (1.35 to 1.42) |
| 3 | 8139 (15.7) | 88 888 (7.3) | 1.66 (1.61 to 1.70) |
| 4 | 6460 (12.4) | 51 961 (4.3) | 1.95 (1.89 to 2.01) |
| ≥5 | 11 566 (22.3) | 59 936 (4.9) | 2.63 (2.56 to 2.70) |
| Total number of physical conditions | |||
| 0 | 9063 (17.5) | 668 190 (54.7) | 0.42 (0.41 to 0.43) |
| 1 | 10 971 (21.1) | 266 951 (21.9) | 1.23 (1.21 to 1.25) |
| 2 | 10 122 (19.5) | 136 637 (11.2) | 1.52 (1.48 to 1.56) |
| 3 | 8253 (15.9) | 73 986 (6.1) | 1.78 (1.73 to 1.83) |
| 4 | 5834 (11.2) | 39 316 (3.2) | 1.95 (1.88 to 2.03) |
| ≥5 | 7685 (14.8) | 35 677 (2.9) | 2.51 (2.42 to 2.59) |
| Total number of mental health conditions | |||
| 0 | 35 729 (68.8) | 1 029 339 (84.3) | 0.50 (0.49 to 0.51) |
| 1 | 11 324 (21.8) | 145 819 (11.9) | 1.73 (1.69 to 1.77) |
| 2 | 4096 (7.9) | 39 160 (3.2) | 2.08 (2.00 to 2.15) |
| ≥3 | 779 (1.5) | 6439 (0.5) | 2.51 (2.32 to 2.76) |
↵a Standardised by age, sex, and deprivation score. COPD = chronic obstructive pulmonary disease.