Table 5.

Fogger trucks and risk of breast cancer by weight change, breastfeeding and menopausal status^a

Population		Modifiers	No fogger truck		Fogger truck		Age-adjusted OR (95% CI)b		p-valuec
			Cases (N)	Controls (N)	Cases (N)	Controls (N)	No fogger truck	Fogger truck
Total population	Weight change	Lost	78	109	29	42	1.00 (reference)	0.94 (0.53, 1.68)	0.3
		Stable	80	75	32	34	1.00 (reference)	0.73 (0.39, 1.39)
		Gain	814	761	528	482	1.00 (reference)	1.19 (1.01, 1.40)
	Breastfeeding status	Never	612	633	416	370	1.00 (reference)	1.17 (0.97, 1.40)	0.7
		Ever	307	365	173	188	1.00 (reference)	1.08 (0.83, 1.40)
	Menopausal status	Pre-	308	328	164	175	1.00 (reference)	0.96 (0.73, 1.26)	0.2
		Post-	592	633	414	357	1.00 (reference)	1.25 (1.05, 1.50)
Fogger truck ≤1972	Weight change	Lost	78	109	23	32	1.00 (reference)	1.03 (0.54, 1.96)	0.2
		Stable	80	75	20	24	1.00 (reference)	0.68 (0.32, 1.43)
		Gain	761	841	403	352	1.00 (reference)	1.21 (1.01, 1.45)
	Breastfeeding status	Never	612	633	311	273	1.00 (reference)	1.16 (0.95, 1.43)	0.9
		Ever	307	365	135	135	1.00 (reference)	1.13 (0.85, 1.51)
	Menopausal status	Pre-	308	328	100	102	1.00 (reference)	0.97 (0.70, 1.35)	0.3
		Post-	592	633	339	292	1.00 (reference)	1.24 (1.02, 1.51)

^a Earliest self-reported fogger truck at residence stratified by time period among Long Island, New York women, Long Island Breast Cancer Study Project,1996-1997. Population and modifier definitions are mutually exclusive categories.

^badjusted for 5-year age groups.

^cmultiplicative interaction p-value from likelihood ratio test.