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Table 1 Clinicopathological factors and ERCC1 protein expression

From: Prognostic potential of ERCC1 protein expression and clinicopathologic factors in stage III/N2 non-small cell lung cancer

Characteristics No. of cases (%) (n = 115) ERCC1 (+) (%) ERCC1 (−) (%) p-Value
Age     
≤65 years 69 (60.0%) 42 (60.9%) 27 (39.1%) 0.814
>65 years 46 (40.0%) 29 (63.0%) 17 (37.0%)
Gender     
Female 34 (29.6%) 17 (50.0%) 17 (50.0%) 0.093
Male 81 (70.4%) 54 (66.7%) 27 (33.3%)
Smoking     
Ever 74 (64.3%) 44 (59.5%) 30 (40.5%) 0.499
Never 41 (35.7%) 27 (65.9%) 14 (34.1%)
Histology type     
Adenocarcinoma 78 (67.8%) 52 (66.7%) 26 (33.3%) 0.114
Others 37 (32.2%) 19 (51.4%) 18 (48.6%)
Pathological-stage     
IIIA 105 (91.3%) 67 (63.8%) 38 (36.2%) 0.178
IIIB 10 (8.7%) 4 (40.0%) 6 (60.0%)
T factor     
T1、T2 83 (72.2%) 48 (57.8%) 35 (42.2%) 0.165
T3、T4 32 (27.8%) 23 (71.9%) 9 (28.1%)
Operative procedure     
Pneumonectomy 25 (21.7%) 15 (60.0%) 10 (40.0%) 0.840
Lobectomy 90 (78.3%) 56 (62.2%) 34 (37.8%)
Number of involved lymph nodes (N1+N2)     
≤5 59 (51.3%) 32 (54.2%) 27 (45.8%) 0.089
>5 56 (48.7%) 39 (69.6%) 17 (30.4%)