Table 3. Association of breast development with interaction between body fat^a and phthalate concentrations^b in girls.

Exposures	OR	95% CI	Pc
MEHP
low PC, Low BF	Reference
low PC, High BF	2.76	1.16, 6.60	0.022
high PC, Low BF	1.31	0.71, 2.41	0.391
high PC, High BF	3.52	0.45, 27.48	0.231
MEHHP
low PC, Low BF	Reference
low PC, High BF	2.30	0.97, 5.45	0.058
high PC, Low BF	1.16	0.63, 2.14	0.624
high PC, High BF	6.99	1.03, 47.29	0.046
MEOHP
low PC, Low BF	Reference
low PC, High BF	2.51	1.06, 5.99	0.037
high PC, Low BF	1.42	0.78, 2.61	0.254
high PC, High BF	7.71	1.13, 52.52	0.037
ΣMEHP
low PC, Low BF	Reference
low PC, High BF	2.57	1.08, 6.10	0.033
high PC, Low BF	1.50	0.81, 2.75	0.195
high PC, High BF	7.83	1.15, 53.32	0.035

BF, body fat; CI, confidence interval; MEHHP, mono-(2-ethyl-5-hydroxyhexyl) phthalate; MEHP, mono-(2-ethylhexyl) phthalate; MEOHP, mono-(2-ethyl-5-oxohexyl) phthalate; OR, odds ratio; PC, phthalate concentration; ΣMEHP, sum of MEHP, MEHHP, and MEOHP concentrations.

^aDivided into low and high groups by body fat composition ≤25% and >25% for girls.

^bDivided into low exposure and high exposure groups by ≤median and >median of specific phthalate concentrations of all children.

^cAdjusted for chronological age and parental education.