The purpose of the present study was to examine gender differences in perceptions of basic psychological needs support from the teacher and peers in physical education. The 659 Estonian secondary school students (310 boys and 349 girls; M age=13.57 years, SD=0.62) completed questionnaires assessing the perceptions of autonomy, competence, and relatedness need support from both the teacher and p...

Background: The female autism spectrum disorder (ASD) phenotype is currently underresearched. Girls with ASD may differ from boys with ASD, yet few studies have tested this hypothesis, particularly among low functioning individuals. This study compared girls and boys with predominantly low functioning ASD and typically developing girls during middle and late childhood across autism symptoms, co...

BACKGROUND There has been a considerable decline in fetal and neonatal mortality in the Western world. The authors hypothesized that this decline has been largest for boys, since boys have a higher risk of fetal and neonatal death. METHODS The authors used data from the Medical Birth Registry about all births in Norway to study changes during 1967-2005 in mortality for boys and girls from the...

We investigated the role of urokinase plasminogen activator (uPA) and its soluble receptors (suPAR) and plasminogen activator inhibitor-1 (PAI-1) in metabolic syndrome (MetS) components, insulin secretion, and resistance in schoolchildren. We enrolled 387 children, aged 10.3 ± 1.5 years, in Taipei. Anthropometry, fibrinolytic proteins, MetS components, insulin secretion, and resistance were mea...

Findings regarding phenotypic differences between boys and girls with ASD are mixed. We compared autism and internalizing symptoms in a sample of 8-18 year-old girls (n = 20) and boys (n = 20) with ASD and typically developing (TYP) girls (n = 19) and boys (n = 17). Girls with ASD were more impaired than TYP girls but did not differ from boys with ASD in autism symptoms. In adolescence, girls w...

Results Questionnaires were completed by 234 (93.6%) of 250 children who were approached. The mean age of the children was 14.3 (range 13-15 years). 70 (29%) were girls and 141 (60%) were boys; 23 (9.8%) did not fill in the personal details. 12 girls had driven a car or bike, of which 6 always, 4 sometimes and 2 never had driven without a helmet/seat-belt. 66 boys had driven a car or bike of wh...

Twenty-two measurements were obtained in 1994-1995 from 117 female and 130 male infants aged 1 to 7 living in the central region of Tokyo. The results are summarized as follows: 1) Differences between standing stature and laid-down body length: On the average, the latter was 1.6 cm larger in girls and 1.9 cm larger in boys than the former. But the difference decreased with age until 4 years old...

The present study investigated the hypothesis that the higher prevalence of reading disability (RD) often observed among boys is partly an artifact of gender bias in the prediction of reading from IQ. The relevant regression statistics derived from a sample of more than 900 children revealed a statistically significant intercept bias. Predicted reading scores for boys were systematically overes...

PURPOSE We hypothesized that body mass-to-waist ratio is strongly associated with the total-body skeletal muscle volume (SMV) in children. The purpose of the present study was to examine this hypothesis. METHODS By using magnetic resonance imaging, total-body SMV (SMVMRI) was determined in 70 boys and 53 girls aged 6 to 12 years. Waist was measured at each of the level of umbilicus (Wumb) and...

background: this study aims to assess the frequency of some hygienic behaviors that is, tooth brushing and hand‑washing, in iranian school students at national level. methods: this nationwide study was conducted in 2011-2012 among 14,880 elementary, secondary and high school students who were selected by random cluster stratified multistage sampling from 30 provinces in iran. we used the global...