Table 5

Cumulative exposure to different types of pesticides

Types of pesticides used for the following pests

Cumulative Exposures

Number of cases

Number of controls

OR after adjusting for confounders* (vs. never exposed)

95% CI


Benign breast diseases

Other surgical diseases

Total


Never exposed+

__

143

145

84

229

__

__


Ants, carpenter ants, cockroaches

Tertiles 1 (1-33%)

93

105

39

144

0.99

0.56-1.72


Tertiles 2 (34-66%)

49

51

37

88

1.15

0.56-2.36


Tertiles 3 (67-100%)

84

97

54

151

0.95

0.52-1.73


Bees or wasps

Tertiles 1 (1-33%)

25

28

11

39

0.7

0.28-1.75


Tertiles 2 (34-66%)

5

14

9

23

0.45

0.11-1.81


Tertiles 3 (67-100%)

19

10

10

20

3.15

0.61-16.35


Flies or mosquitoes in your home or yard

Tertiles 1 (1-33%)

14

7

5

12

2.37

0.50-11.22


Tertiles 2 (34-66%)

8

6

6

12

1.18

0.20-6.98


Tertiles 3 (67-100%)

9

9

7

16

1.66

0.26-10.67


Fleas or ticks in your home

Tertiles 1 (1-33%)

17

18

13

31

1.1

0.30-3.95


Tertiles 2 (34-66%)

15

8

9

17

10.73

1.14-101.28


Tertiles 3 (67-100%)

10

19

7

26

2.95

0.46-19.04


Weeds

Tertiles 1 (1-33%)

51

49

34

83

1.21

0.61-2.40


Tertiles 2 (34-66%)

22

24

13

37

1.7

0.64-4.53


Tertiles 3 (67-100%)

41

37

21

58

1.03

0.43-2.45


Lawn insects

Tertiles 1 (1-33%)

42

41

19

60

1.43

0.67-3.05


Tertiles 2 (34-66%)

20

16

12

28

2.42

0.86-6.78


Tertiles 3 (67-100%)

36

30

20

50

0.68

0.28-1.64


Insects or diseases of outdoor plants

Tertiles 1 (1-33%)

26

37

21

58

0.68

0.29-1.58


Tertiles 2 (34-66%)

14

12

6

18

1.13

0.37-3.40


Tertiles 3 (67-100%)

33

22

18

40

1.04

0.37-2.92


* Adjusted for age at the time of diagnosis, race, religion, level of education, family history of breast cancer, body mass index, age at menopause and age at menarche.

+ The never exposed category included persons who reported not being exposed to the pesticides.

CI, confidence interval; OR, odds ratio

Farooq et al. Environmental Health 2010 9:30   doi:10.1186/1476-069X-9-30

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