Table 3.

Association between maternal organochlorine pesticide exposure and communication development scores in daughters at 15 months by strata of parity.^*

	Nonverbal Communication		Social Development		Verbal Comprehension		Vocabulary Comprehension & Production
Analyte Tertiles (ng/g lipid)	Adjusted mean (95% CI)	P***	Adjusted mean (95% CI)	P***	Adjusted mean (95% CI)	P***	Adjusted mean (95% CI)	P***
Nulliparous women
HCB (n = 189)
1 ( ≤ 41.2)	14.56 (13.75, 15.37)		18.05 (16.53, 19.57)	0.07	9.96 (9.37, 10.55)		113.39 (101.28,125.49)
2 (41.21–59)	15.32 (14.67, 15.98)	0.16	19.29 (17.95, 20.63)	0.07	10.10 (9.58, 10.62)	0.01	103.02 (92.34, 113.70)	0.11
3 (> 59.0)	14.02 (13.32, 14.73)	0.89	17.32 (15.67, 18.97)	0.56	8.97 (8.33, 9.61)	0.04	88.99 (75.85, 102.12)	0.01
p-trend**	0.90		0.56		0.04		0.01
Parous women
HCB (n=187)
1 ( ≤ 41.2)	15.07 (14.13, 16.01)		18.63 (17.13, 20.13)		9.51 (8.87, 10.16)		97.43 (85.90, 108.96)
2 (41.21–59)	15.05 (14.17, 15.93)	0.26	19.44 (18.04, 20.85)	0.43	9.65 (9.05, 10.25)	0.73	87.01 (76.21, 97.80)	0.91
3 (> 59.0)	14.30 (13.36, 15.24)	0.28	18.61 (17.13, 20.13)	0.99	9.50 (8.86, 10.13)	0.98	87.93 (85.90, 108.96)	0.27
p-trend**	0.26		0.95		0.96		0.28

^*Adjusted for home score at six months, smoking status, and maternal age. Pesticides lipid-adjusted with units ng/g lipid.

^**P-trend based on a scored variable using the median value of each tertile.

^***P-values based on the comparison between the category with the lowest category (referent).