TABLE 4.

Results of Linear Regression Analysis of Levels of Exposure (Log-Transformed Creatinine-Unadjusted Concentrations, Controlled for Age and Creatinine)

Predictor	ΣDAP			TCPy
	β	t	P	β	t	P
Frequency of OPs used on farm	0.444	3.591	.001**	0.416	3.824	.001**
Being a member of a rice farming family	0.361	2.734	.009**	0.451	3.805	<.001**
Proximity to rice farm	0.182	1.313	.195	0.274	2.150	.037*
Being with parent on rice farm	0.125	0.886	.38	0.304	2.403	.020*
Playing on rice farm	0.145	1.029	.309	0.273	2.127	.039*
Parentally observed dirt on body	0.017	0.122	.903	0.287	2.291	.026*
Frequency of floor cleaning	0.175	1.191	.239	–0.080	–0.563	.576
Washing hands before eating	0.007	0.048	.962	0.192	1.442	.156
Playing indoor	0.152	1.089	.282	0.124	0.935	.355
Playing outdoor	–0.011	–0.078	.938	0.027	0.203	.840
Frequency of finger-to-mouth	–0.112	–0.800	.428	–0.163	–1.250	.218
Frequency of object-to-mouth	–0.015	–0.109	.914	0.128	0.966	.339

^*Significant level at P < .05.

^**Significant level at P < .01.