Objective To examine the shape (functional form) of the association between the rate of gestational weight gain, pre-pregnancy body mass index (BMI), and preterm birth and its subtypes. Design Retrospective cohort study. ...

Purpose: Standard oocyte in vitro maturation (IVM) usually results in lower pregnancy rates than in vitro fertilization (IVF). IVM preceded by a prematuration step improves the acquisition of oocyte developmental competence ...

Objective: To determine hemoglobin values associated with adverse maternal outcomes among Peruvian populations at different altitudes. Methods: A retrospective cohort study was conducted using data from the Perinatal ...

Background: Tobacco exposure remains a significant issue for public health, especially for pregnant women. It increases the risk for premature labor, low birth weight and small for gestational age (SGA), among other effects. ...

Objective: to determine the risk factors for premature birth. Methods: retrospective case-control study of 600 pregnant women assisted in a hospital, with 298 pregnant women in the case group (who gave birth prematurely < ...

Background. Efforts to better understand the risk factors associated with respiratory failure (RF) and fatal lower respiratory tract infection (LRTI) in premature children in developing countries are necessary to elaborate ...

Objective: To synthetize the scientific evidence on the association between serum lipids and premature mortality in Latin America (LA). Methods: Five data bases were searched from inception without language restrictions: ...

We conducted a prospective cohort study in four hospitals in Lima, Peru in infants with a birth weight </= 1,500 g followed from birth hospital discharge up to 1 year of age to determine the incidence of respiratory syncytial ...