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Characteristics of the enrolled subjects
| Males (n = 1503) | Females (n = 1594) | |
|---|---|---|
| Age (years) | 58 (36–90) | 57 (36–88) |
| BMI (kg/m2) | 27 (15–49) | 26 (14–55) |
| Pack-years (n) | 38 (0.5–175) | 29 (0.1–172)* |
Note: P < 0.05.
Abbreviation: BMI, body mass index.
