Table 1 Distribution of 114 bladder cancer cases and 140 hospital controls according to socio-demographic characteristics and selected variables

From: Urinary human polyomavirus and papillomavirus infection and bladder cancer risk

 

Cases

Controls

 
 

n (%)

n (%)

OR (95% CI) a

Sex

 Men

95 (83.3)

114 (81.4)

 

 Women

19 (16.7)

26 (18.6)

 

Age (years)

 <65

42 (36.8)

50 (35.7)

 

 65–74

43 (37.7)

61 (43.6)

 

75

29 (25.4)

29 (20.7)

 

Education (years)

 <7

54 (47.4)

71 (50.7)

Ref.

 7–11

40 (35.1)

44 (31.4)

1.27 (0.68–2.38)

12

20 (17.5)

25 (17.9)

1.12 (0.50–2.49)

χ2 for trend

  

0.19; P=0.66

Smoking habit

 Never

15 (13.2)

45 (32.1)

Ref.

 Former

54 (47.4)

77 (55.0)

2.25 (1.10–4.60)

 Current

45 (39.5)

18 (12.9)

9.15 (3.92–21.37)

 Intensity (cig per day)b

   

<15

13 (11.4)

8 (5.7)

4.92 (1.64–14.73)

15

32 (28.1)

10 (7.1)

11.23 (4.00–31.53)

χ2 for trend

  

22.08; P<0.01

Drinking habit (drinks per week)

 <21

43 (37.7)

65 (46.4)

Ref.

21

71 (62.3)

75 (53.6)

1.60 (0.87–2.95)

  1. Abbreviations: CI=confidence interval; OR=odds ratio.
  2. aEstimated from unconditional logistic regression, adjusted for sex, age, education, and smoking habit, as appropriate.
  3. bAmong current smokers only.