Skip to main content

Table 3 Odds Ratios (ORs) of lung cancer associated with ETS from inside homes (all co-residents combined)

From: Exposure to environmental tobacco smoke (ETS) and risk of lung cancer in Montreal: a case–control study

   

All subjects

Self-respondents only

ETS from co-residents

Controls

Cases

   

Controls

Cases

   
  

Categories

N=436

N=44

OR*

95%CI

N=410

N=32

OR*

95%CI

 

Never

113

16

1

(ref.)

105

11

1

(ref.)

 

Ever

323

28

0.63

0.32

1.25

305

21

0.66

0.30

1.46

 

Person-years

          
  

1-21 coresident-yrs

95

12

0.93

0.40

2.12

90

9

0.95

0.37

2.44

  

22+ coresident-yrs

228

16

0.50

0.23

1.08

215

12

0.53

0.22

1.28

 

Duration

          
  

<=100 (hrs/d x yrs)

126

13

0.75

0.34

1.69

118

11

0.89

0.36

2.19

  

>100 (hrs/d x yrs)

197

15

0.54

0.25

1.20

187

10

0.51

0.20

1.27

 

Cumulative exposure

          
  

<=4 pack-yrs

150

14

0.67

0.31

1.48

140

11

0.76

0.31

1.86

  

>4 pack-yrs

173

14

0.60

0.27

1.34

165

10

0.58

0.23

1.47

 

Exposure only < 20 yrs age

57

8

1.09

0.42

2.83

54

7

1.24

0.44

3.51

 

Exposure only >= 20 yrs age

56

6

0.72

0.26

2.06

53

3

0.52

0.14

2.02

 

Exposure both < & >= age 20

210

14

0.48

0.22

1.05

198

11

0.52

0.21

1.29

  1. *Adjusted for sex, age, median income, and proxy (if applicable).
Back to article page

Environmental Health

ISSN: 1476-069X