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Table 5 Cumulative exposure to different types of pesticides

From: Self-reported exposure to pesticides in residential settings and risk of breast cancer: a case-control study

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
  1. * 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.
  2. + The never exposed category included persons who reported not being exposed to the pesticides.
  3. CI, confidence interval; OR, odds ratio