Maternal age was categorized as less
than 20 years and equal to or more than 20
years; level of education as less than 8 years
of education and equal to or more than 8
years of education; employment as having
a paid job and unpaid job; marital status
as with and without a partner; gestational
age in the beginning of prenatal care as
first trimester (1 to 13 weeks), second trimester
(14 to 27 weeks) and third trimester
(28 weeks and more); number of prenatal
consultations as less than 7 consultations
and equal to or more than 7 consultations;
and number of previous pregnancies as
none and one or more previous pregnancies.
Nutritional status was categorized
according to the Brazilian Ministry of Health
recommendations: low weight; adequate
weight; and overweight/obesity.