Characteristics of patients included in the analysis
| Characteristic | Non-COPD | COPD |
|---|---|---|
| Age group (n=481 489) | ||
| <55 | 79 603 (18.8%) | 6575 (11.2%) |
| 55–64 | 92 446 (21.8%) | 10 858 (18.5%) |
| 65–74 | 101 654 (24.0%) | 17 402 (29.6%) |
| 75–84 | 100 660 (23.8%) | 18 011 (30.7%) |
| ≥85 | 48 747 (11.5%) | 5893 (10.0%) |
| Sex (n=481 489) | ||
| Male | 285 502 (67.5%) | 37 135 (63.2%) |
| Female | 137 608 (32.5%) | 21 604 (36.8%) |
| Diagnosis (n=481 489) | ||
| STEMI | 137 724 (32.6%) | 14 984 (25.5%) |
| Non-STEMI | 183 447 (43.4%) | 29 198 (49.7%) |
| Unstable angina | 101 393 (24.1%) | 3136 (24.8%) |
| Previous MI (n=478 530) | 79 733 (18.9%) | 14 485 (25.1%) |
| Previous angina (n=477 494) | 107 991 (25.7%) | 19 962 (34.7%) |
| Previously treated hyperlipidaemia (n=467 096) | 135 236 (32.9%) | 18 573 (33.2%) |
| Previously treated hypertension (n=477 515) | 201 174 (47.9%) | 28 256 (49.0%) |
| Peripheral vascular disease (n=473 652) | 17 216 (4.1%) | 4182 (7.4%) |
| Cerebrovascular disease (n=476 863) | 31 563 (7.5%) | 5858 (10.3%) |
| Chronic renal failure (n=476 351) | 17 368 (4.1%) | 3697 (6.5%) |
| Chronic heart failure (n=476 324) | 18 216 (4.3%) | 4955 (8.7%) |
| Previous percutaneous coronary intervention (n=472 614) | 29 077 (7.0%) | 4256 (7.5%) |
| Previous coronary artery bypass graft (n=473 891) | 22 567 (5.4%) | 3320 (5.8%) |
| Smoking history (n=481 849) | ||
| Never smoker | 142 254 (33.6%) | 0 (0%) |
| Ex-smoker | 151 560 (35.8%) | 35 103 (59.8%) |
| Current smoker | 129 296 (30.6%) | 23 636 (40.2%) |
| Raised cardiac markers* (n=481 849) | 365 730 (91.8%) | 51 206 (92.2%) |
| ST-segment deviation* (n=413 253) | 221 205 (60.7%) | 27 165 (55.3%) |
| Use of diuretic in hospital* (n=481 849) | 93 116 (22.0%) | 19 069 (32.5%) |
| Mean heart rate* (n=433 721) | 80.2±21.9 | 87.2±23.7 |
| Mean systolic blood pressure* (n=432 854) | 139.9±28.6 | 138.2±29 |
| Mean serum creatinine* (n=287 893) | 101±56.6 | 103.4±58.3 |
*Mean±SD.
COPD, chronic obstructive pulmonary disease; MI, myocardial infarction; non-STEMI, non-ST-segment elevation myocardial infarction.