Table 4 Association of IR signs and overall mortality and disease-specific mortality after controlling for clinicopathological variables

 IR1

0.01

0.02

  IR1 = 0

109

1

1

  IR1 = 1

34

3.85

1.37–10.81

3.91

1.22–12.59

 IR2

0.65

0.30

  IR2 = 0

61

1

1

  IR2 = 1

82

0.80

0.30–2.15

0.56

0.18–1.68

 IR3

0.88

0.93

  IR3 = 0

12

1

1

  IR3 = 1

131

0.85

0.10–6.96

1.11

0.13–9.44

 IR4

0.98

0.16

  IR4 = 0

114

1

1

  IR4 = 1

29

1.01

0.33–3.10

2.26

0.74–6.93

 IR5

0.85

0.60

  IR5 = 0

26

1

1

  IR5 = 1

117

1.14

0.31–4.17

0.69

0.18–2.66