Table 1

Demographic characteristics of the patient population

CharacteristicsHistologyTotal
Squamous cell carcinomaAdenocarcinomaOther
Patients, no. (%)35 (35)47 (48)17 (17)99 (100)
Gender, no. (%)
 Female11 (31)26 (55)13 (76)50 (50)
 Male24 (69)21 (45)4 (24)49 (50)
Age, y, mean ± SD66.1 ± 8.063.7 ± 10.661.6 ± 9.664.2 ± 9.6
Smoking status, no. (%)
 Smoker34 (97)44 (94)16 (94)94 (95)
 Nonsmoker1 (3)3 (6)1 (6)5 (5)
Stage, no. (%)
 I22 (63)22 (47)9 (52)53 (54)
 II7 (20)14 (30)2 (12)23 (23)
 III5 (14)8 (17)4 (24)17 (17)
 IV1 (3)3 (6)2 (12)6 (6)