The pregnancy in the adolescence is a problem of public health, being able to bring negative consequences for the adolescent, her family and for concepto/newborn. Objectives: To identify differences between the sociodemographic and reproductive characteristics of the adolescent mothers with childbirth the term and childbirth preterm, in Espírito Santo on 2007. Methodology: Quantitative retrospective study. The data had been collected in the Information System of living births, being carried through descriptive analysis of 9.841 Declarations of living births. The relation between the dependent variable (term) and factors was tested by Fisher's exact test, with á=0,05. The results had evidenced that the differences in the characteristics of adolescent mothers with childbirth the term and preterm had occurred in the following variables: age between 10 to 14 years (p=0,016), married marital status (p=0,014), number of prenatal consultations when insufficient (p=0,000) and double gestation (p=0,000). There was a higher incidence of premature childbirths in the National System of Health (p=0,000).
Pregnancy; Adolescent; Premature obstetric labor
