Cadmium (Cd) is a ubiquitous environmental contaminant, a known carcinogen, and understudied as a developmental toxicant. In the present study, we examined the relationships between Cd levels during pregnancy and infant birth outcomes in a prospective pregnancy cohort in Durham, North Carolina. The study participants (n = 1027) had a mean Cd level of 0.46 µg/L with a range of <0.08 to 2.52 µg/L...

An association between preterm birth and an increased risk of childhood asthma has been demonstrated, but the importance of intrauterine growth retardation on asthma risk is unclear. Using data from Swedish health registers, infant characteristics and childhood asthma were studied. Analyses were made using Mantel-Haenszel methodology with adjustment for year of birth, maternal age, parity, smok...

AIMS To study the association between gestational age and birth weight and the risk of clinically verified hyperkinetic disorder. METHODS Nested case-control study of 834 cases and 20 100 controls with incidence density sampling. RESULTS Compared with children born at term, children born with gestational ages of 34-36 completed weeks had a 70% increased risk of hyperkinetic disorder (rate r...

OBJECTIVES To investigate the association between fetal growth between first and early second trimester ultrasound scan and the risk of severe small for gestational age (SGA) birth. METHODS This cohort study included 69 550 singleton pregnancies with first trimester dating and an early second trimester growth scan in Stockholm and Gotland Counties, Sweden between 2008 and 2014. Exposure was d...

OBJECTIVE To assess the effect of growth during infancy and childhood on blood pressure in adolescence. DESIGN Birth cohort study. SETTING Pelotas, southern Brazil. PARTICIPANTS 749 adolescents with complete information on birth weight and gestational age, as well as on anthropometric data at all three follow up visits (mean age 20 months, 42 months, and 15 years). MAIN OUTCOME MEASUREM...

AIM To determine the normative values of stretched penile length in apparently healthy term Igbo newborn males in South eastern Nigeria and its relationship with gestational age, birth weight and birth length. METHODS Eight hundred and eleven apparently healthy term male neonates within the first 72 h of life were studied. Enrolled subjects were consecutively delivered babies of Igbo extracti...

Many phenols are known to mimic or antagonize hormonal activities and may adversely affect fetal growth. A study of 567 pregnant women was conducted to investigate the relationship between prenatal phenol exposure and birth outcomes, including birth weight, length, and gestational age. We measured the concentrations of bisphenol A, benzophenone-3, 4-n-octylphenol and 4-n-nonylphenol in maternal...

this study was aimed to evaluate the situation of congenital hypothyroidism (ch) in guilan using the screening program and determine the correlation of ch with birth weight, gestational age and seasonality. during 2006 to 2010, in guilan province, neonatal screening for ch by measurement of serum tsh level was performed in 3-5 days after birth. all neonates with tsh level ≥ 5mu/l were referred ...

BACKGROUND Low birth weight and prematurity are amongst the strongest predictors of neonatal death. However, the extent to which they act independently is poorly understood. Our objective was to estimate the neonatal mortality risk associated with preterm birth when stratified by weight for gestational age in the high mortality setting of East Africa. METHODS AND FINDINGS Members and collabor...

BACKGROUND Previous studies have shown an association between prematurity and attention- abstract deficit/hyperactivity disorder (ADHD). Results concerning late preterm infants are controversial, and studies examining fetal growth represented by weight for gestational age are scarce. Our objective was to examine the association between gestational age by each week of fetal maturity, weight for ...