Table 1.

Clinical and individual characteristics of patients and lung tumors studied for TP53 and KRAS mutations

All subjects (n = 131), n (%)Never smokers (n = 40), n (%)Former smokers (n = 27), n (%)Current smokers (n = 64), n (%)
Gender
    Female37 (28)35 (88)1 (4)1 (2)
    Male94 (72)5 (12)26 (96)63 (98)
Age at diagnosis (y)
    <507 (5)4 (10)1 (3)2 (3)
    51-6047 (36)11 (28)8 (30)29 (45)
    61-7045 (35)13 (32)8 (30)25 (39)
    >7030 (23)12 (30)10 (37)8 (13)
Education
    Basic-middle school51 (39)14 (35)9 (35)28 (44)
    High school-university79 (61)26 (65)17 (65)36 (56)
Tumor histology
    Adenocarcinoma47 (36)24 (60)8 (30)15 (23)
    SCC54 (41)3 (8)11 (41)40 (63)
    ADC-SCC16 (12)5 (12)4 (15)7 (11)
    SCLC6 (5)2 (5)2 (7)2 (3)
    Others8 (6)6 (15)2 (7)0 (0)