Table 2.

Estimated risks of microcephaly

Variable	Univariate analysis			Adjusted analysis
	Odds ratio	95% CI	p value	Odds ratio	95% CI	p value
Suspected Zika virus disease	9.28	2.02–42.67	0.004	9.85	1.83–53.05	0.008
Occupation (homemaker)	4.00	0.86–18.57	0.077	8.33	0.91–76.05	0.06
Past infection by dengue virus	2.45	0.77–7.75	0.127	3.06	0.60–15.57	0.176

p values were calculated by univariate or multivariate (adjusted) conditional logistic regression