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

Table 4 Exposure to pesticides based on where it was applied

Types of pesticides used for the following pests	Location	Number of cases	Number of control	Adjusted OR	95% CI
Never exposed⁺	__	143	229	__	__
Ants, carpenter ant, cockroaches	Inside or both inside and outside	200	343	1.13	0.75-1.72
	Outside only	28	42	1.22	0.60-2.50
Bees or wasps	Inside or both inside and outside	15	21	2.42	0.76-7.75
	Outside only	34	61	0.84	0.40-1.74
Flies or mosquitoes in your home or yard	Inside or both inside and outside	17	17	2.21	0.77-6.30
	Outside only	13	23	1.15	0.29-4.60
Fleas or ticks in your home	Inside or both inside and outside	40	70	1.55	0.71-3.40
	Outside only	2	7	1.57	0.21-11.94
Weeds	Inside or both inside and outside	3	2	4.77	0.37-62.10
	Outside only	113	177	1.21	0.76-1.93
Lawn insects	Inside or both inside and outside	3	1	__	__
	Outside only	97	138	1.3	0.79-2.14
Insects or diseases of outdoor plants	Inside or both inside and outside	5	3	__	__
	Outside only	69	112	1.05	0.59-1.85

* 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

ISSN: 1476-069X