School lunches serve to improve nutritional status and to promote the health of children. The purpose of this study was to investigate the portion sizes of school lunches served and consumed in Japanese elementary schools. In addition, gender difference in servings and consumption were also studied. A cross-sectional study was undertaken between October 2007 and February 2008 in schools located...

Abstract Background: This study investigated the epidemiology of drug abuse among high school students in Kerman. Methods: This was a cross-sectional study on a randomly selected sample of 652 first and second grade high school students (256 boys, 396 girls) in Kerman. They were informed that their answers would be classified and nameless before they filled questionnaires. Schools and ...

BACKGROUND This study investigated the epidemiology of drug abuse among high school students in Kerman. METHODS This was a cross-sectional study on a randomly selected sample of 652 first and second grade high school students (256 boys, 396 girls) in Kerman. They were informed that their answers would be classified and nameless before they filled questionnaires. Schools and classes were selec...

It is common knowledge that boys fall behind in school performance, and UK policy makers have addressed this issue in the past decade. In fact, they seem committed to narrowing gender gaps of any kind. This paper asks whether actual progress has been made in reducing the degree to which boys fall behind, and also whether gender differences in subject preference have changed in the period 2001 t...

a r t i c l e i n f o An increase in the educational achievement of girls at the same time that the number of female teachers in primary school education is rising has led to the discussion whether boys are disadvantaged by the lack of male teachers. The Netherlands Twin Register identified a unique sample of 100 12-year-old monozygotic twin pairs discordant and 396 boy–girl twin pairs concorda...

This study examined the relation between involvement in school-based extracurricular activities and early school dropout. Longitudinal assessments were completed for 392 adolescents (206 girls, 186 boys) who were initially interviewed during 7th grade and followed up annually to 12th grade. A person-oriented cluster analysis based on Interpersonal Competence Scale ratings from teachers in middl...

b a ckground: previous studies have suggested that sex may be a factor influencing basal metabolic rate (bmr) in adults and school age children. however, few data are available about the effects of sex on bmr in pre-school children. in the present study, we investigated whether sex differences contribute to variations in bmr in pre-school age children. m et h o ds : measurements were made on th...

This study investigated whether being driven to school was associated with lower weekday and weekend step counts, less active out-of-school leisure pursuits, and more sedentary behavior. Boys aged 10-13 years (n = 384) and girls aged 9-13 years (n = 500) attending 25 Australian primary schools wore a pedometer and completed a travel diary for one week. Parents and children completed surveys cap...

OBJECTIVES To describe the degree of disability, anthropometric variables, quality of life (QoL), and school backpack weight in boys and girls aged 11-17 years. The differences in QoL between those who did or did not report low back pain (LBP) were also analyzed. METHODS Eighty-six girls (13.9 ± 1.9 years of age) and 63 boys (13.7 ± 1.7 years of age) participated. LBP was assessed by question...

To evaluate the parental concerns for elementary school boys (7-12 yr) on the circumcision, a randomly selected cross-sectional survey was performed in each elementary school from 16 urban wards in Busan. We asked 10,861 parents to answer the questionnaires on the circumcision such as the benefits and fallbacks of circumcision, proper time and knowledge of the surgery, and neonatal circumcision...