Urinary and breast milk biomarkers to assess exposure to naphthalene in pregnant women: an investigation of personal and indoor air sources

Table 3 Seasonal simple linear regression results for naphthalene in air (μg/m ³ )

Exposure	Season	N	Median	Mean	GM	p-value*
Weekday Indoor	Fall	19	0.947	1.254	1.029	0.341
	Spring	13	0.827	1.349	0.903	0.728
	Summer	15	0.780	1.005	0.827
	Winter	15	0.489	0.626	0.524	0.063
Post-Partum Indoor	Fall	9	1.024	1.532	1.258	0.006
	Spring	22	1.798	1.923	1.815	0.074
	Summer	8	2.355	3.164	2.781
	Winter	19	1.849	2.223	1.639	0.031
Weekday Personal	Fall	20	0.950	1.423	1.083	0.583
	Spring	13	0.801	1.156	0.840	0.695
	Summer	15	0.734	1.449	0.940
	Winter	13	0.295	0.477	0.338	0.001
Post-Partum Personal	Fall	9	1.023	1.183	1.153	0.002
	Spring	22	1.739	1.742	1.665	0.031
	Summer	8	2.501	3.219	2.819
	Winter	20	1.556	2.236	1.538	0.015

ISSN: 1476-069X