Table 7.

Prediction of p,p’-DDT, p,p’-DDE and p,p’-DDT / p,p’ -DDE ratio serum concentrations by seeing a fogger truck^a

Population	β	ln DDTb	ln DDEb	ln (DDT/DDE)b
		n = 1,032	n = 1,051	n = 1,032
Total LIBCSP population	β	−0.0228	−0.0854	−0.4080
	SE	0.0378	0.0542	4.6704
	pc	0.5	0.1	0.9
Fogger truck ≤1972	β	−0.0240	−0.1002	1.5783
	SE	0.0387	0.0569	4.6883
	pc	0.5	0.08	0.7

^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 definitions are mutually exclusive categories.

^bAdjusted for 5-year age groups, race (white, other), BMI at reference (CDC categories), weight change from age 20 to diagnosis (lost, stable, gained), breastfeeding (ever/never), lipid levels, cholesterol(g/L) and trigylcerides(g/L).

^cWald χ² p-value.