Table A2.

Odds ratios (ORs) of the other studied predictors on multivitamin use

Variable name	Total sample		African ancestry		No African ancestry
	OR	95% CI	OR	95% CI	OR	95% CI
Birth defect history	1.4	[0.7-2.6]	1.9	[0.6-5.7]	1.2	[0.5-2.9]
Difficulty in conception	0.7	[0.4-1.2]	0.4*	[0.1-1.1]	0.8	[0.4-1.6]
Chronic illness	0.8	[0.5-1.2]	0.6	[0.3-1.2]	0.7	[0.4-1.3]
First trimester bleeding	0.6	[0.3-1.2]	0.4*	[0.1-1.03]	0.9	[0.4-2.0]
Miscarriages/stillbirths	0.9	[0.8-1.2]	1.1	[0.8-1.5]	0.8	[0.5-1.1]
Prenatal visits	1.0	[0.9-1.1]	0.9	[0.8-1.03]	1.0	[0.96-1.1]
Maternal education-Incomplete secondary b	1.5	[0.8-2.9]	2.8*	[0.9-9.0]	1.1	[0.5-2.4]
Father’s education-Less than primary b	1.6*	[0.96-2.6]	1.3	[0.6-2.9]	1.9*	[0.97-3.6]
Father’s education-Incomplete secondary b	1.3	[0.7-2.4]	2.0	[0.8-5.4]	1.0	[0.4-2.4]
Father’s education-Secondary b	1.4	[0.8-2.4]	1.2	[0.5-3.1]	1.7	[0.8-3.4]
Father’s education-University b	1.3	[0.7-2.5]	0.8	[0.2-2.6]	1.4	[0.6-3.3]
Maternal employment	1.1	[0.7-1.5]	1.2	[0.7-2.2]	1.1	[0.7-1.8]
Father’s employment	1.7	[0.7-4.3]	1.2	[0.4-3.8]	3.1	[0.6-15.8]
African ancestry	0.9	[0.6-1.3]	-	-	-	-
Native ancestry	1.2	[0.8-1.8]	1.8*	[0.9-3.5]	1.2	[0.7-2.0]
European Latin ancestry	0.9	[0.6-1.3]	1.1	[0.6-2.1]	0.8	[0.5-1.4]
European non-Latin ancestry	1.0	[0.6-1.5]	0.6	[0.2-2.0]	1.1	[0.6-1.8]
Pregnancy year 95 c	0.8	[0.3-2.1]	2.6	[0.5-11.8]	0.4	[0.1-1.3]
Pregnancy year 99 c	1.6	[0.7-3.7]	3.2	[0.7-13.8]	0.9	[0.3-2.6]
Pregnancy year 00 c	1.2	[0.5-2.9]	1.6	[0.4-6.8]	0.8	[0.3-2.3]
Pregnancy year 01 c	0.8	[0.3-1.8]	1.3	[0.3-5.4]	0.5	[0.2-1.3]
Pregnancy year 02 c	0.4	[0.1-1.7]	1.3	[0.2-9.3]	0.1*	[0.01-1.2]
Paraiba d	1.5	[0.3-7.2]	1.6	[0.3-8.2]	2.3	[0.2-21.4]
Santa Catarina d	0.6	[0.2-1.5]	0.6	[0.2-2.1]	0.5	[0.2-1.7]

Note: 95% Confidence Intervals (CI) of odds ratios (ORs) that were marginally significant or insignificant are listed in brackets.

^*indicates p<0.1.

^bReference category is completed primary school;

^cReference category is year 1994;

^dReference category is the state of Sao Paulo.