INTRODUCTION Maternal nutritional status of pre pregnancy and gestational weight gain affects the preterm birth. The association between maternal nutritional status of pre pregnancy and preterm birth appears to be complex and varied by studies from different countries, thus this association between the gestational weight gain and preterm birth is more consolidated. OBJECTIVE The study aims to...

BACKGROUND Preterm birth is a common cause of death in newborns and may result from many determinants, but evidence for the socioeconomic and environmental determinants of preterm birth in Tibetan women of childbearing age is limited. The aim of this study was to understand the current status of preterm birth in native Tibetan women and investigate the socioeconomic and environmental determinan...

BACKGROUND Although effects of weather changes on human health have been widely reported, there is limited information regarding effects on pregnant women in developing countries. OBJECTIVE We investigated the association between maternal exposure to ambient temperature and the risk of preterm birth (< 37 weeks of gestation) in Guangzhou, China. METHODS We used a Cox proportional hazards mo...

OBJECTIVE To investigate the effects of maternal and paternal depression on the risk for preterm birth. DESIGN National cohort study. SETTING Medical Birth Register of Sweden, 2007-2012. POPULATION A total of 366 499 singleton births with linked information for parents' filled drug prescriptions and hospital care. METHODS Prenatal depression was defined as having filled a prescription f...

BACKGROUND Preterm birth rates have increased substantially in the recent years mostly due to obstetric intervention. We studied the effects of increasing iatrogenic preterm birth on temporal trends in perinatal mortality and serious neonatal morbidity in the United States. METHODS We used data on singleton and twin births in the United States, 1995-2005 (n = 36,399,333), to examine trends in...

OBJECTIVE We performed a systematic review to assess the benefits and harms of progesterone administration for the prevention of preterm birth in women and their infants. DATA SOURCES The Cochrane Controlled Trials Register was searched, and reference lists of retrieved studies were searched by hand. No date or language restrictions were placed. METHODS OF STUDY SELECTION Randomized trials ...

Preterm births occur in 9.7% of all US singleton births. The rate for blacks is double that of whites and the rate is 25% higher for Hispanics than for whites. While a number of individual correlates with preterm birth have been identified, race and ethnic differences have not been fully explained. Influenced by a growing body of literature documenting a relationship among health, individual in...

BACKGROUND The nutrition and epidemiologic transition has been associated with an increasing incidence of preterm birth in developing countries, but data from large observational studies in China have been limited. Our study was to describe the trends and factors associated with the incidence of preterm birth and infant mortality due to prematurity in Hubei Province, China. METHODS We conduct...

OBJECTIVE To determine the accuracy with which the absence of fetal breathing movements on ultrasound examination predicts spontaneous preterm birth in women with threatened preterm labor. METHODS Data sources included Medline, Embase, Pascal, Biosis, Cochrane Library, Medion, National Research Register, SciSearch, conference papers, and manual searching of bibliographies of known primary and...