Exposure to fogger trucks and breast cancer incidence in the Long Island Breast Cancer Study Project: a case–control study

Table 4 Associations between reporting a fogger truck and breast cancer subtype ^a

Population	Self-reported fogger truck at residence	Subtype^b	Cases (N)	Controls (N)	Age-adjusted^cratio of the ORs (95% CI)
Total LIBCSP population	Ever	Other subtypes	778	1,556	1.00 (reference)
		ER-PR-	212	1,556	0.98 (0.71, 1.35)
		Other subtypes	407	1,556	1.00 (reference)
		ER+PR+	583	1,556	1.41 (1.08, 1.84)
	≤20 years of age	Other subtypes	539	1,556	1.00 (reference)
		ER-PR-	152	1,556	0.91 (0.71, 1.16)
		Other subtypes	298	1,556	1.00 (reference)
		ER+PR+	393	1,556	1.25 (1.01, 1.54)
	≤14 years of age	Other subtypes	526	1,556	1.00 (reference)
		ER-PR-	146	1,556	0.84 (0.64, 1.11)
		Other subtypes	289	1,556	1.00 (reference)
		ER+PR+	383	1,556	1.32 (1.05, 1.67)
Fogger truck ≤1972	Ever	Other subtypes	708	1,530	1.00 (reference)
		ER-PR-	190	1,530	0.91 (0.64, 1.29)
		Other subtypes	373	1,530	1.00 (reference)
		ER+PR+	525	1,530	1.44 (1.08, 1.93)
	≤20 years of age	Other subtypes	538	1,528	1.00 (reference)
		ER-PR-	151	1,528	0.89 (0.53, 1.49)
		Other subtypes	297	1,528	1.00 (reference)
		ER+PR+	392	1,528	1.50 (0.97, 2.32)
	≤14 years of age	Other subtypes	526	1,528	1.00 (reference)
		ER-PR-	146	1,528	1.04 (0.87, 1.24)
		Other subtypes	289	1,528	1.00 (reference)
		ER+PR+	383	1,528	1.15 (0.99, 1.33)

^a Earliest self-reported fogger truck at residence stratified by time period and age at residence among Long Island, New York women, Long Island Breast Cancer Study Project,1996-1997. Populations are mutually exclusive categories; “Ever” includes exposure >20, ≤20 and ≤14 years of age; “≤20 years of age” includes exposures ≤14 years of age.
^b For ER+PR+ comparison, “other subtypes” includes ER-PR-, ER+PR-, ER-PR+. For ER-PR- comparison, “other subtypes” includes ER+PR+, ER+PR-, ER-PR+.
^c adjusted for 5-year age groups.

ISSN: 1476-069X