The number of dead

The number of living

Survival rate median

(95% CI), months

p log-rank test

HR (95% CI)

p value

Stage

I-II

44 (41.5%)

62 (58.5%)

84.0 (45.6 - 122.5)

<0.0001

1.00

<0.0001

III-IV

44 (65.7%)

23 (34.3%)

18.4 (9.6 - 27.1)

1.60 (1.30 - 1.95)

Histology

Squamous cell carcinoma

53 (58.2%)

38 (41.8%)

39.6 (24.5 - 54.7)

0.079

1.00

0.86

Adenocarcinoma

35 (42.7%)

47 (57.3%)

67.1 (51.4 - 88.8)

0.98 (0.62 - 1.54)

gender

female

9 (22.5%)

31 (77.5%)

108.5 (87.2 - 129.8)

<0.0001

1.00

0.007

male

79 (59.4%)

54 (40.6%)

39.7 (29.7 - 49.8)

2.77 (1.32 - 5.82)

GSTТ1

GSTТ1 (del)

16 (47.1%)

18 (52.9%)

49.8 (0.2 - 105.1)

0. 60

1.00

0.18

GSTТ1 (+)

72 (51.8%)

67 (48.2%)

50.8 (31.2 - 70.8)

0.68 (0.38 - 1.19)

GSTМ1

GSTМ1 (del)

47 (50.0%)

47 (50.0%)

51.6 (30.5 - 72.8)

0.72

1.00

0.09

GSTМ1 (+)

41 (51.9%)

38 (48.1%)

40.9 (14.9 - 66.9)

0.68 (0.43 - 1.06)

GSTP1

AA

43 (48. 9%)

45 (51.1%)

52.1 (25.5 - 78.7)

0.43

1.00

0.97

GA

38 (55.9%)

30 (44.1%)

40.9 (20.4 - 61.4)

1.10 (0.48 - 2.48)

GG

7 (41.2)

10 (58.8)

96.4 (62.2 - 130.6)

1.01 (0.48 - 2.50)