OBJECTIVES To examine variations in the registration of extremely low birthweight and early gestation births and to assess their effect on perinatal and infant mortality rankings of industrialised countries. DESIGN Retrospective population based study. SETTING Australia, Canada, European countries, and the United States for 2004; Australia, Canada, and New Zealand for 2007. POPULATION Nat...

INTRODUCTION Birth defects are a series of disorders that occur during embryonic life. In Iran, no national situation analysis is available to show the rate of congenital disorders. We aimed to estimate the prevalence of structural birth defects in Iran. METHODS We searched for English studies on PubMed, Scopus and Google Scholar from January 1990 to July 2016. The search for Persian articles...

The United States has one of the highest rates of teen pregnancy among industrialized countries, with more than 750,000 pregnancies each year among women less than 20 years of age. Though teen pregnancy rates in the US had declined each year since 1991, the most recent national data show that rates of teen pregnancy, abortion, and birth are on the rise. Rhode Island has 2,430 teen pregnancies p...

Objectives-This report presents preliminary data for 2009 on births in the United States. U.S. data on births are shown by age, live-birth order, race, and Hispanic origin of mother. Data on marital status, cesarean delivery, preterm births, and low birthweight (LBW) are also presented. Methods-Data in this report are based on 99.95 percent of births for 2009. The records are weighted to indepe...

QUESTION UNDER STUDY The study has following objectives: 1) to determine the incidence of higher-order multiple births from 2005 to 2008 in Switzerland and its evolution over the last twenty years, and 2) to analyse the neonatal outcome and its change over the last two decades. METHODS Data on higher-order multiple births were retrospectively obtained from Swiss obstetric and neonatal hospita...

BACKGROUND The present study used vital-statistics data to estimate the effect of maternal age and fertility treatment on the number and rate of multiple live births in Japan from 1974 through 2009. METHODS Japanese vital statistics published by the Ministry of Health, Labour and Welfare from 1974 to 2009 were gathered and reanalyzed with regard to maternal age class and plurality of live bir...

BACKGROUND Preterm birth is a high risk condition associated with significant mortality and morbidity in the perinatal, neonatal, and childhood periods, and even in adulthood. Knowledge of the epidemiology of preterm births is necessary for planning appropriate maternal and fetal care. OBJECTIVE The objective of this study was to determine the prevalence, pattern, and perinatal mortality asso...

A retrospective study was undertaken to determine trends in teenage births in Antigua and Barbuda from 1969 to 2003. Maternity Ward records were reviewed at Holberton Hospital, site of over 90% of deliveries in Antigua and Barbuda. Maternal age for all births were included. The estimated population in Antigua and Barbuda increased from 60,159 in 1969 to 69,866 in 1998, with no suspected change ...

The present study sought to assess the time trends of spina bifida on the basis of cases identified by the Liaoning Birth Defects Registry in 14 cities from 2006 to 2015. We calculated the prevalence of spina bifida, percent and average change of time trends, and contribution rates of each city. Poisson regression model was used to find the line of best fit for spina bifida prevalence by year, ...

Using Early Childhood Longitudinal Study-Birth Cohort data, we present estimates of nonmarital births in the United States in 2001, both within and outside of cohabiting unions. We additionally examine how mother and father characteristics are associated with the relationship context at birth, and assess racial/ethnic differences in these relationships. We find that 52% of nonmarital births (an...