Earth & Environmental Sciences
childbearing
100%
adolescence
88%
risk factor
66%
education
27%
socioeconomics
26%
level of education
22%
young
22%
lifestyle
17%
poverty
16%
information system
15%
school
14%
logistics
14%
income
14%
family
11%
planning
9%
policy
9%
city
9%
method
3%
Medicine & Life Sciences
Brazil
58%
Parturition
44%
Population
25%
Mothers
18%
Cohort Studies
6%
Educational Status
6%
Sex Education
5%
Coitus
5%
Information Systems
5%
Poverty
5%
Risk Reduction Behavior
5%
Fathers
4%
Siblings
4%
Income
4%
Life Style
4%
Motivation
4%
Case-Control Studies
3%
Interviews
3%
Logistic Models
3%
Demography
3%
Education
3%
Child
2%
Social Sciences
adolescence
53%
Brazil
48%
adolescent
34%
girls' school
7%
underage
6%
sex education
6%
family income
6%
deprivation
5%
level of education
5%
information system
5%
father
4%
logistics
4%
poverty
4%
childhood
4%
regression
3%
planning
3%
interview
2%