Background: Stillbirth is a sensitive indicator for health care quality, living conditions and equity in a society. The aim of this study was to determine the rate and contributing factors of stillbirth at Babol hospitals. Methods: This cross-sectional, descriptive, analytical study was designed as an applied research, using census sampling in 2012-2013. A questionnaire was applied for data co...

The aim of this survey was to evaluate the frequency of pregnant ewes slaughtered in Khorram Abadabattoir and estimation of their gestational age. Over a period of five months in fall and winter, a totalnumber of 3046 uterine tracts were collected. Pregnancy was detected in 56.50% of ewes, 52.36% and 4.13% of which carried singleton and twins, respectively. The highest frequency of pregnancy wa...

Infants who do not survive the first year of life are more likely to be born at earlier gestational ages. In 2014, 66% of infants who survived to age 1 year were delivered at full term or later (≥39 completed weeks) compared with 16% of infants who died before reaching age 1 year. Fifty-eight percent of infants who died before age 1 year were delivered at <32 weeks gestation compared with only ...

Preterm delivery (PTD) is the leading cause of neonatal mortality worldwide, yet its etiology remains largely unexplained. We propose that the genetic factors controlling this trait could act in a nonuniform manner during pregnancy, with each factor having a unique "window of sensitivity." We test this hypothesis by modeling the distribution of gestational ages (GAs) observed in maternal cousin...

BACKGROUND: Infant mortality has traditionally been analyzed as a function of birth weight and birth weight-specific mortality. Often, however, when comparing two populations, the population with higher overall mortality has lower mortality at low birth weights and a reversed pattern at higher birth weights. Methods standardizing birth weight, such as the "relative birth weight", have been prop...

OBJECTIVE To present updated national birthweight percentiles by gestational age for male and female singleton infants born in Australia. DESIGN AND SETTING Cross-sectional population-based study of 2.53 million singleton live births in Australia between 1998 and 2007. MAIN OUTCOME MEASURES Birthweight percentiles by gestational age and sex. RESULTS Between 1998 and 2007, women in Austral...

The autumn of 2014 saw public debate about the appropriate threshold for abortion and gestational age. Gestational age can be determined in a number of ways and ultrasound examination represents an important contribution. In Norway, two methods are in use: the Terminhjulet obstetric wheel, developed in Bergen (the Bergen method) by a group that includes some of the authors of this article, and ...

There is no question that birth at extremely low gestational ages presents a significant threat to an infant's survival, health and development. Growing evidence suggests that gestational age may be conceptualised as a continuum in which births before 28 weeks of gestation (extremely preterm: EP) represent the severe end of a spectrum of health and developmental adversity. Although comprising j...

OBJECTIVES Determine hemoglobin levels and prevalence of anemia in pregnant women seen in health care centers of the Ministry of Health at national level. MATERIALS AND METHODS Cross-cut study where the database of the Information System on the Nutritional Health of Children under 5 and Pregnant Women (SIEN) were analyzed. 287 691 records of pregnant women examined at the health care centers ...