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

Table 2 Exposure to pesticides based on who applied the product

Types of pesticides used for the following pests	Who applied these products	Number of cases	Number of control	Adjusted OR*	95% CI
Never exposed⁺	__	143	229	__	__
Ants, carpenter ant, cockroaches	Study participant	120	205	1.25	0.79-1.98
	Another from the same household/professional	109	108	1.06	0.65-1.73
Bees or wasps	Study participant	22	41	0.73	0.31-1.72
	Another from the same household/professional	27	42	1.66	0.70-3.94
Flies or mosquitoes in your home or yard	Study participant	19	28	2.01	0.71-5.66
	Another from the same household/professional	13	12	1.66	0.42-6.62
Fleas or ticks in your home	Study participant	27	41	1.52	0.58-3.93
	Another from the same household/professional	15	36	1.59	0.57-4.44
Weeds	Study participant	12	18	1.2	0.40-3.58
	Another from the same household/professional	104	164	1.21	0.75-1.97
Lawn insects	Study participant	11	7	2.68	0.72-9.92
	Another from the same household/professional	89	133	1.22	0.73-2.04
Insects or diseases of outdoor plants	Study participant	18	17	2.55	0.81-8.00
	Another from the same household/professional	57	99	0.95	0.52-1.74

* 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