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. 2010 May 3;118(9):1332–1337. doi: 10.1289/ehp.0901736

Table 4.

Coefficients (95% CI) of mixed-model analyses of urine TSH and T4 on iodide, perchlorate, thiocyanate and nitrate.

	Log (TSH, mIU/g cr)		Log (T₄, μg/g cr)
Independent variable	Unique chemical^a	Multiple chemicals^b	Unique chemical^a	Multiple chemicals^b
Log (iodide, μg/g cr)	0.44 (0.28 to 0.59)^*		0.39 (0.22 to 0.55)^*
Log (perchlorate, μg/g cr)	0.12 (0.05 to 0.19)^*	0.01 (−0.07 to 0.09)	0.11 (0.03 to 0.19)^*	0.01 (−0.08 to 0.09)
Log (thiocyanate, μg/g cr)	0.28 (0.17 to 0.39)^*	0.26 (0.15 to 0.37)^*	0.34 (0.23 to 0.45)^*	0.33 (0.21 to 0.44)^*
Log (nitrate, μg/g cr)	0.15 (0.07 to 0.23)^*	0.13 (0.05 to 0.21)^*	0.11 (0.02 to 0.19)^*	0.09 (0.01 to 0.17)^*

cr, creatinine. All models are adjusted for age, sex, and BMI.

^a

Results for individual chemicals modeled separately.

^b

Results for models with all chemicals modeled simultaneously.

^*

p < 0.05.