In a study to assess the effects of intensive physical activity and thinness on menarche records of 648 girls aged 10-14 were analysed. The girls were classified as thin or not thin on the basis of their body mass index, and whether or not they engaged in intensive sports activity was established. The presence of either thinness or intensive sports activity was associated with roughly a twofold...

By a result of McKenzie [4] finite directed graphs that satisfy certain connectivity and thinness conditions have the unique prime factorization property with respect to the cardinal product. We show that this property still holds under weaker connectivity and stronger thinness conditions. Furthermore, for such graphs the factorization can be determined in polynomial time.

BACKGROUND In China, there has been a dramatic increase in overweight and obesity among children and adolescents in recent decades. However, little longitudinal studies reported BMI in relation to the risk for hypertension among children in China. We examined the longitudinal relations between BMI and hypertension in Chinese schoolchildren via a retrospective cohort study. METHODS The cohort ...

INTRODUCTION Young children living in more disadvantaged socio-economic circumstances (SECs) are at an increased risk of overweight and obesity. However, there is scant research examining the prevalence and social distribution of thinness in early childhood, despite potential negative consequences for health and development across the life-course. METHODS We examined the social gradient in th...

BACKGROUND This study's purpose was to understand associations between water, sanitation, and child growth. METHODS We estimated stunting (height-for-age Z score <-2 SD) and thinness (BMI-Z <-2 SD) risk ratios using data from 7,715 Ethiopian, Indian, Peruvian, and Vietnamese children from the Young Lives study. RESULTS In unadjusted models, household access to improved water and toilets was...

OBJECTIVE To evaluate change in body mass index (BMI) and weight status of indigenous youth in Oaxaca between the 1970s and 2007. MATERIALS AND METHODS Heights and weights were measured in cross-sectional samples of school children 6-14 years in the 1970s (2 897) and 2007 (4 305); BMI was calculated. International Obesity Task Force cutoffs for weight status were used. BMI and prevalence of s...

Objectives: To provide baseline anthropometric data on the problems of malnutrition among different sub-groups of Tripura’s children aged up to 18+ years, consulting internationally recognized SD (standard deviation) system and to examine if there is any disagreement between the SD-and percentile-based cut-off points of malnutrition. Methods: A cross-sectional study of children’s lengths/height...

OBJECTIVE To determine cut offs to define thinness in children and adolescents, based on body mass index at age 18 years. DESIGN International survey of six large nationally representative cross sectional studies on growth. SETTING Brazil, Great Britain, Hong Kong, the Netherlands, Singapore, and the United States. SUBJECTS 97 876 males and 94 851 females from birth to 25 years. MAIN OU...