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Table 1 Subject cigarette smoking histories and the risk of bladder cancer, Roswell Park Cancer Institute, 1982–1998a

From: Cigarette Smoking and the Risk of Bladder Cancer in Men and Women

 

Total Subject Population

Males

Females

 

Cases

Controls

OR (95% CI)b

Cases

Controls

OR (95% CI)

Cases

Controls

OR (95% CI)

Never smokers

100

718

1.0 (referent)

60

472

1.0 (referent)

40

246

1.0 (referent)

Ever smokers

396

1198

2.4 (1.9–3.0)

318

970

2.6 (1.9–3.5)

78

228

2.1 (1.4–3.2)

(Missing)

(3)

(6)

 

(3)

(5)

  

(1)

 

Current smokers

122

271

3.4 (2.5–4.6)

95

190

4.2 (2.9–6.1)

27

81

2.1 (1.2–3.7)

Former smokers

274

927

2.1 (1.6–2.7)

223

780

2.2 (1.6–3.0)

51

147

2.1 (1.3–3.4)

Pack-years of smoking

≤ 10

27

192

1.0 (0.64–1.6)

18

131

1.1 (0.62–1.9)

9

61

0.91 (0.42–2.0)

11–20

44

182

1.7 (1.2–2.6)

32

145

1.7 (1.1–2.8)

12

37

2.0 (0.94–4.2)

21–30

41

172

1.7 (1.2–2.6)

33

143

1.8 (1.1–2.9)

8

29

1.7 (0.72–4.0)

31–40

52

166

2.3 (1.5–3.3)

40

136

2.3 (1.5–3.6)

12

30

2.5 (1.2–5.2)

> 40

218

436

3.6 (2.8–4.7)

185

374

3.9 (2.8–5.4)

33

62

3.3 (1.9–5.6)

(Missing)

(14)

(50)

 

(10

(41)

 

(4)

(9)

 

P for trendc

  

< .001

  

< .001

  

.004

Duration (years of smoking)

1–10

19

134

1.0 (0.60–1.7)

14

103

1.1 (0.57–2.0)

5

31

0.98 (0.36–2.7)

11–20

47

215

1.6 (1.1–2.3)

38

181

1.6 (1.1–2.6)

9

34

1.6 (0.70–3.6)

21–30

69

250

2.0 (1.4–2.8)

52

200

2.0 (1.4–3.1)

17

50

2.1 (1.1–4.0)

31–40

101

275

2.6 (1.9–3.6)

82

223

2.9 (2.0–4.2)

19

52

2.2 (1.2–4.2)

> 40

153

301

3.7 (2.8–4.9)

127

244

4.1 (2.9–5.8)

26

57

2.8 (1.6–5.0)

(Missing)

(7)

(23)

 

(5)

(19)

 

(2)

(4)

 

P for trend

  

< .001

  

< .001

  

.022

Frequency (cigarettes per day)

1–10

45

230

1.4 (0.96–2.1)

30

149

1.6 (0.99–2.6)

15

81

1.1 (0.60 – 2.2)

11–20

168

506

2.4 (1.8–3.1)

131

415

2.5 (1.8–3.4)

37

91

2.5 (1.5 – 4.2)

21–30

51

170

2.2 (1.5–3.2)

42

141

2.4 (1.5–3.7)

9

29

1.9 (0.84 – 4.4)

31–40

90

187

3.5 (2.5–4.9)

80

168

3.8 (2.6–5.6)

10

19

3.3 (1.4 – 7.6)

> 40

33

79

3.0 (1.9–4.8)

29

74

3.1 (1.9–5.2)

4

5

4.9 (1.3 – 19.2)

(Missing)

(9)

(26)

 

(6)

(23)

 

(3)

(3)

 

P for trend

  

< .001

  

< .001

  

.005

  1. aAdjusted for age
  2. bOR = odds ratio, CI = confidence interval
  3. cP = probability
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Tobacco Induced Diseases

ISSN: 1617-9625

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