. Author manuscript; available in PMC: 2018 Mar 1.

Published in final edited form as: J Expo Sci Environ Epidemiol. 2016 Mar 9;27(2):193–197. doi: 10.1038/jes.2016.11

Table 3.

Regression analyses for environmental predictors of handwipe and serum PBDE levels.

Housing characteristic	Handwipes				Serum

	BDE-47	BDE-99	BDE-100	BDE-153	BDE-47	BDE-99	BDE-100	BDE-153

	10^β (95% CI)	10^β (95% CI)	10^β (95% CI)	10^β (95% CI)	10^β (95% CI)	10^β (95% CI)	10^β (95% CI)	10^β (95% CI)
Dominant toy material^a (plastic vs wood/metal/mix)	2.06 (0.98, 4.32)	2.29 (1.07, 4.88)^#	1.98 (0.92, 4.26)	1.57 (0.82, 3.01)	0.91 (0.50, 1.67)	1.01 (0.55, 1.86)	0.93 (0.51, 1.70)	0.60 (0.33, 1.08)
Home's flooring^b (carpet vs wood/tile/mixed)	1.23 (0.67, 2.26)	1.23 (0.67, 2.26)	1.09 (0.59, 2.00)	1.07 (0.63, 1.83)	0.92 (0.57, 1.48)	1.11 (0.70, 1.78)	1.00 (0.62, 1.63)	0.87 (0.55, 1.40)
Bedroom's flooring^b (carpet vs wood/tile)	1.11 (0.57, 2.15)	1.60 (0.83, 3.11)	1.44 (0.74, 2.8)	1.39 (0.78, 2.49)	0.64 (0.38, 1.07)	0.80 (0.48, 1.32)	0.66 (0.39, 1.11)	0.88 (0.53, 1.46)
Playroom's flooring^b (carpet vs wood/tile)	1.09 (0.59, 2.01)	1.47 (0.80, 2.72)	1.24 (0.67, 2.31)	1.15 (0.67, 1.97)	0.83 (0.51, 1.35)	0.93 (0.58, 1.50)	0.91 (0.56, 1.49)	0.84 (0.52, 1.35)
Vacuuming frequency^b (≤4 vs >4 times/month)	0.59 (0.28, 1.23)	0.50 (0.24, 1.04)	0.57 (0.27, 1.21)	0.68 (0.35, 1.32)	0.77 (0.43, 1.38)	0.73 (0.41, 1.30)	0.69 (0.38, 1.24)	0.95 (0.53, 1.70)

Abbreviations: CI, confidence interval; PBDE, polybrominated diphenyl ether. Exponentiated β-coefficients represent the multiplicative change in handwipes or serum relative to the reference group for categorical variables, or the per unit change for continuous variables.

P < 0.05.

Adjusted for sex, father's education, and age.

Adjusted for father’s education.