Background The rate of preterm birth has been increasing worldwide, including in Brazil.
This constitutes a significant public health challenge because of the higher levels of …

Background Preterm birth rate is increasing and is currently a worldwide concern. The
purpose of this study was to estimate the prevalence of preterm birth in a sample of health …

ABSTRACT OBJECTIVE: The greatest cause of infant mortality in Brazil is perinatal
conditions, mostly associated with preterm delivery. The objective of the study was to …

Prematurity is a leading cause of neonatal mortality and a global health problem that affects
high, middle and low-income countries. Several factors may increase the risk of preterm …

Although neonatal and infant mortality rates have fallen in recent decades in Brazil, the
prevalence of preterm deliveries has increased in certain regions, especially in the number …

An increase in preterm deliveries in Ribeirão Preto stimulated an analysis of possible
explanatory factors. Two cohorts of singleton livebirths were studied, the first based on 6746 …

Background Preterm birth is the main cause of morbidity and mortality during the perinatal
period. Classical risk factors are held responsible for only 1/3 of preterm births and no …

ABSTRACT OBJECTIVE To verify regional inequalities regarding access and quality of
prenatal and birth care in Brazilian public health services and associated perinatal …

Preterm birth continues to be one of the main causes of neonatal morbidity and mortality.
The objective of the present study was to identify risk factors for preterm birth in São Luís …

Objectives To estimate the national rate of early-term live births in Brazil and to evaluate the
effect of birth at 37 and 38 weeks' gestation, as compared with 39 and 40 weeks' gestation …