introduction low birth weight (lbw) is a high risk for children's health and a problem of public health in under developing countries. sga increases neonatal and infant death, and neonatal and adult morbidity. so the present study aimed to assess the incidence of lbw, sga and their related factors in sabzevar in 2011 to 2012.   materials and methods this prospective descriptive-analytic st...

presence of maternal diabetes mellitus (dm) during pregnancy has important consequences for both mother and child. to determine maternal and fetal/neonatal complications of gestational dm and compare them with pre-gestational dm, a prospective study was performed in 100 diabetic women delivered in our hospital from january 2001 to april 2002. pregnancy outcome in 27 women with gestational dm an...

Background: Birth weight and gestational age are two important variables in obstetric research. The primary measure of gestational age is based on a mother’s recall of her last menstrual period. This recall may cause random or systematic errors. Therefore, the objective of this study is to utilize Bayesian mixture model in order to identify implausible gestational age.   Methods: ...

Infants born preterm or small for gestational age have elevated rates of morbidity and mortality. Using birth certificate records in Texas from 2002 to 2004 and Environmental Protection Agency air pollution estimates, we relate the quantile functions of birth weight and gestational age to ozone exposure and multiple predictors, including parental age, race, and education level. We introduce a s...

Background: Fetal growth restriction is defined as the failure of the fetus to achieve its full growth potential. The present study aimed to investigate the application of first trimester screening in the prediction of small for gestational age (SGA).Methods: This cohort study was conducted on the consecutive and unselected women with singleton pregnancies undergoing routine first-trimester exa...

BACKGROUND: It is generally accepted that the risk of cerebral palsy decreases with increasing gestational age of live born infants. However, recent studies have shown that cerebral palsy often has prenatal antecedents including congenital malformations, vascular insults and maternal infection. Cerebral palsy is therefore better viewed as occurring among fetuses, rather than among infants. We e...

OBJECTIVE The purpose of this work was to examine the relations among neuromaturation, mother-infant relationship, and cognitive development in small-for-gestational-age premature infants and to assess the interactive effects of birth weight and intrauterine growth restriction on developmental outcomes. METHODS We studied 120 singleton premature infants (birth weight: 530-1790 g; gestational ...

BACKGROUND Accurate estimation of gestational age is important for both clinical and public health purposes. Estimates of gestational age using fetal ultrasound measurements are considered most accurate but are frequently unavailable in low- and middle-income countries. The objective of this study was to assess the validity of last menstrual period and Farr neonatal examination estimates of ges...

background: singleton pregnancy with a live birth beyond 37 weeks of gestation is the ultimate goal of any assisted reproductive technology. however, singletons conceived after art are found to have a poor perinatal outcome in comparison to naturally conceived singletons. it was hypothesized that the outcome of singleton conceived after transfer of two or more embryos may be dependent on the sh...