introduction: internet addiction is a global problem that caused negative effects on health. the present study aimed to determine the prevalence of internet addiction in iranian high school students in 2014. materials and methods: in a cross – sectional study assessed the prevalence of internet addiction among 381 high school students in ilam, in 2014. the samples were selected by a multi-stage...

asthma is one of the most common problems of childhood, responsible for a significant proportion of abstinence from school because of chronic illness. this study was carried out among the school-aged children (7-18 years) in tehran schools during 2002-2003, in order to determine the frequency of asthma. according to the recommendation of who (world health organization), we designed a questionna...

OBJECTIVE To determine the association of birth weight with obesity risk at first grade of high school in Chilean children after accounting for potential confounding factors. DESIGN National non-concurrent cohort of newborns. Sociodemographic information, height, weight and anthropometric measurements at first grade of high school were analysed. Birth weight was classified as macrosomia (≥400...

Background: Behavioral disorders in childhood are very important due to the possibility of behavioral-mental disorders in adulthood. The aim of this study was to determine the rate of behavioral disorders factors among children in the 4th and 5th grade of primary school in Rafsanjan City, Iran, in 2016. Materials and Methods: In this descriptive, cross-sectional study, 500 students were select...