Table 1.

Baseline patient characteristics

CharacteristicsN = 330 (%)
Age at diagnosis (stage IV)
 Median (range)61 (45–80)
Sex
 Women195 (59)
 Men135 (41)
KPS (%)
 ≥80241 (73)
 <8072 (22)
 Not recorded17 (5)
Smoking history category
 Current37 (11)
 Former271 (82)
 Never22 (7)
Smoking history, pack-years
 Median pack-year30
 Range0–135
 Unknown2
Pathology
 Adenocarcinoma294 (89)
 Squamous11 (3)
 Adenosquamous4 (1)
 Other21 (6)