Table 1.
Characteristics of the patients in the validation cohort according to cancer status.
| Patients | No cancer (n=20) |
Cancer (n=40) |
|---|---|---|
| Age, years (IQR) * | 69 (62–74) | 62 (54–71) |
| Gender | ||
| Male, n (%) | 18 (90) | 27 (68) |
| Female, n (%) | 2 (10) | 13 (32) |
| Smoking status | ||
| Never smoker, n (%) | 2 (10) | 2 (5) |
| Ex-smoker, n (%) | 8 (40) | 24 (60) |
| Current, n (%) | 10 (50) | 14 (35) |
| PKY, (IQR) | 50 (38–68) | 50 (40–80) |
Abbreviation: PKY, pack year (pack per day × number of years smoked), IQR, interquartile range.
*
IQR (1st–3rd) values are the median.