Table 1.
Baseline demographic patient characteristics and procedures (n=462)
| Variable | Frequency* |
| Age (years) | |
| Mean (SD) | 74.6 (9.6) |
| Median (IQR) | 75.0 (69.0 to 81.0) |
| Male gender | 272 (58.9) |
| BMI | |
| n (% non-missing) | 442 (95.7) |
| <18.5 | 10 (2.3) |
| 18.5 to <25 | 137 (31.0) |
| 25 to <30 | 163 (39.8) |
| ≥30 | 132 (29.9) |
| Smoking status | |
| n (% non-missing) | 438 (94.8) |
| Current smoker | 43 (9.8) |
| Ex-smoker | 236 (53.9) |
| Never smoked | 159 (36.3) |
| Asthma diagnosis† | 24 (5.2) |
| COPD diagnosis† | 19 (4.1) |
| Respiratory tract cancer | 0 (0.0) |
| Other chronic respiratory diseases (excluding cancer)‡ | 4 (0.9) |
| Lung function test conducted | |
| 90 days prior diagnosis | 88 (19.0) |
| 365 days prior diagnosis | 160 (34.6) |
*Numbers are presented as n (%) unless specified.
†First diagnostic code recorded ever prior and up to diagnosis date.
‡Listed in the online supplementary data.
BMI, body mass index; COPD, chronic obstructive pulmonary disease.