This study evaluated the sensitivities and false positive rates of the screening test using ultrasonographic measurement of thickness of nuchal translucency (NT) with different cut-offs for chromosomal aberration in a Korean population. We included 2,570 singleton pregnancies undergoing ultrasound between 11 weeks and 14 weeks of gestation in this study. We analyzed the sensitivities of NT alon...

OBJECTIVE To define the range of neonatal weight loss in a population relative to feeding method. DESIGN Prospective observational cohort study. SETTING Maternity service providing geographically defined, community based newborn follow up. PARTICIPANTS 971 consecutive term newborns of birth weight > or = 2500 g during the first 2-3 weeks of life; 34 excluded (inadequate data). 937 include...

background obesity is one of the most common nutritional problems in adolescent. knowing eating behavior of adolescents improve our understanding about this pandemic and helps design an appropriate preventive and care plan. methods in a cross-sectional study, 372 students selected randomly from 8 guidance schools of shiraz, iran, during august-december 2009. body weight was measured to the near...

an increase, even moderate, in global temperature is expected to result in a change in frequency of extreme weather events like drought, heavy rainfall and storms. the study of extreme events is difficult due to the fact that it is difficult to find long-term homogeneous data series. also the delimitation of extreme events is not univocal since a parameter value that would be defined as an extr...

PURPOSE To determine the risk factors and clinical presentation of primary omental torsion (POT) in children. METHODS Histopathology records of a pediatric hospital from January 1993 to March 2003 were reviewed to identify cases of POT. Hospital charts of patients diagnosed with POT were reviewed for demographic data and clinical presentation. RESULTS A diagnosis of POT was recorded in 12 o...

This paper describes the results of measured response times of a full-text search service running in a virtualized environment. Using a monitoring tool, we observed the performance of the lulu.com Solr search engine in order to identify a relationship between the CPU and memory allocated to the Solr VM, the arrival rate of queries, and the 95th percentile and the mean of the query execution res...

BACKGROUND AND PURPOSE The size of vestibular aqueducts (VAs) seen on CT studies varies. The current practice of calling a VA enlarged when it exceeds a certain threshold (eg, 1.5 mm at the midpoint) is arbitrary. Our hypothesis was that statistical analysis of the range of VA widths in a normal-hearing population would lead to a mathematic definition of the upper-limit-of-normal VA width. MA...

To assess the burden associated with hypertension, reliable estimates for the prevalence of pediatric hypertension are vital. For this cross-sectional study of 237,248 youths aged 6 to 17 years without indication of secondary hypertension, blood pressure (BP) was classified according to age, sex, and height using standards from the Fourth Report on the Diagnosis, Evaluation, and Treatment of Hi...

The goal of this study was to examine sonographically the extraaxial space in neurologically normal infants with occipital frontal circumference greater than or equal to the 95th percentile for age and correlate these dimensions with neurologic follow-up findings to determine a range of normal values. We thus hope to obviate unnecessary workup of these patients, including additional imaging or ...