Skip to main content

Table 1 Selected characteristics of colon cancer controls and population controls

From: Colon cancer controls versus population controls in case-control studies of occupational risk factors

 

Colon cancer controls

Population controls

 

N

(%)

n

(%)

N

(%)

n

(%)

Responders

254

(59)

  

320

(55)

  

   Men

  

153

(60)

  

195

(61)

   Women

  

101

(40)

  

125

(39)

   Age at interview (years)

        

35–59

  

125

(49)

  

180

(56)

60–69

  

129

(51)

  

140

(44)

   Mean age, years

  

58.1

-

  

56.7

-

Non-responders

174

(41)

  

263

(45)

  

   Men

  

93

(53)

  

168

(64)

   Women

  

81

(47)

  

95

(36)

   Age at contact (years)

        

35–59

  

68

(39)

  

114

(43)

60–69

  

106

(61)

  

149

(57)

   Mean age, years

  

60.1

-

  

59.9

-

Total

428

(100)

  

583

(100)