Table 1 Characteristics of the COPD population, measured at the random index date
Characteristic | COPD population |
|---|---|
62,747 (%) | |
Age at random index date | |
40–49 | 2,734 (4.4%) |
50–59 | 9,253 (14.7%) |
60–69 | 18,203 (29.0%) |
70–79 | 19,615 (31.3%) |
80+ | 12,942 (20.6%) |
Male | 33,241 (53.0%) |
Quintile of Index of Multiple Deprivation | |
0 (least deprived) | 7,153 (11.4%) |
1 | 11,199 (17.8%) |
2 | 12,441 (19.8%) |
3 | 14,801 (23.6%) |
4 (most deprived) | 17,033 (27.1%) |
Body mass index at random index date | |
Underweight | 6,109 (9.7%) |
Normal | 18,556 (29.6%) |
Overweight | 18,640 (29.7%) |
Obese | 13,224 (21.1%) |
Unknown | 6,218 (9.9%) |
Smoking status at random index date | |
Non Smoker | 6,586 (10.5%) |
Ex Smoker | 30,494 (48.6%) |
Smoker | 24,849 (39.6%) |
Unknown | 818 (1.3%) |
Prescriptions in the previous three months | |
Antibiotics | 23,740 (37.8%) |
Oral glucocorticoid therapies | 10,645 (17.0%) |
Anticholinergics | 21,104 (33.6%) |
Medical history | |
Hypertension | 24,245 (38.6%) |
Diabetes | 8,322 (13.3%) |
Heart Failure | 5,132 (8.2%) |
Depression | 18,282 (29.1%) |
Forced expiratory volume in one second (FEV1) as proportion of predicted | |
Mild COPD (≥80) | 2,699 (4.3%) |
Moderate COPD (50–<80%) | 10,434 (16.6%) |
Severe COPD (30–< 50%) | 20,283 (32.3%) |
Very severe COPD (<30%) | 8,095 (12.9%) |
Unknown | 21,236 (33.8%) |