Table 2 Analysis of DFS and OS in relation to clinicopathological parameters, p53, BAX and Bcl-2 protein expression and MSI status

From: Studies on p53, BAX and Bcl-2 protein expression and microsatellite instability in stage III (UICC) colon cancer treated by adjuvant chemotherapy: major prognostic impact of proapoptotic BAX

 

n

5-year DFS (%)

P

5-year OS (%)

P

Sex

 Male

79

57.1

0.2

68.8

0.3

 Female

109

65.7

 

70.7

 

Age, years

     

62

98

64.7

0.6

72.7

0.4

 >62

90

59.4

 

66.8

 

T category, pathologic

     

 T2

19

83.9

0.05

83.9

0.1

 T3–4

169

59.7

 

68.3

 

N category, pathologic

     

 N1

107

71.6

0.001

80.2

0.0001

 N2–3

81

49.3

 

55.7

 

Differentiation

     

 G1–2

138

66.8

0.005

74.9

0.003

 G3–4

50

49.3

 

55.6

 

Location

     

 Right

93

66.9

0.1

74.2

0.3

 Left

95

57.1

 

65.5

 

Treatment arm

     

 Arm A (5-FU/LV)

95

70.5

0.01

76.7

0.02

 Arm B (5-FU/LEV)

93

53.2

 

62.4

 

BAX staining index

     

 High

111

71.7

0.0005

76.1

0.002

 Low

77

48.2

 

60.7

 

Bcl-2 expression

     

 Positive

131

59.9

0.7

69.3

0.7

 Negative

57

67.5

 

71.3

 

p53 expression

     

 Positive

94

57

0.2

67.3

0.2

 Negative

94

67.3

 

72.6

 

MSI status

     

 MSI−

158

59.4

0.5

68

0.4

 MSI+

16

67.5

 

81.3

 
  1. Kaplan–Meier curves compared by log-rank test.
  2. DFS=disease-free survival; MSI=microsatellite instability; OS=overall survival. Bold values signify P<0.05.