Table 3. Multivariate logistic regression analysis including variables associated with serum TSH ≥ 10 mIU/L.

Variable		OR	95% CI	P value
Male sex		0.52	0.37-0.74	<0.001
Gestational age (weeks)
	≥37 *
	34-37	0.54	0.31-0.94	0.03
	≤34	0.86	0.26-3.02	0.81
Congenital anomalies
	No *
	Yes	0.74	0.28-1.95	0.53
Gestational complications a
	No *	0.82	0.57-1.17
	Yes			0.28
Maternal age (years)			0.41-1.08
	<35 *
	≥35	0.67		0.10

^*Reference category.

^aUse of Lugol's iodine solution, HIV infection, gestational diabetes mellitus, preeclampsia, eclampsia, smoking, use of illicit drugs, anemia, urinary tract infection. OR: odds ratio; 95% CI: 95% confidence interval.