نتایج جستجو برای: early adolescents

تعداد نتایج: 776289  

باغچقی, نیره, رضایی, کورش, زند, سلیمان, کوهستانی, حمیدرضا,

Background and objectives: Clinical manifestations of coronary artery disease such as myocardial infarction generally have onset from middle age onwards. However, studies indicate that the atherosclerotic process begins to develop during childhood. The purpose of this study was to evaluate the frequency of risk factors for atherosclerosis in children with family history of premature myocardial ...

Qamar Kiani, Reza Kaboli,

Background and Objectives: The tendency to use drugs is a growing phenomenon, which is linearly increasing from early adolescence to early adulthood. This study aimed to determine the relationship between religious orientation and addiction potential with the mediatory roles of social support and self-efficacy among male adolescents in Zanjan Rood, Iran. Methods: This descriptive and correlati...

Journal: :journal of family and reproductive health 0
mahbobe ghavidel-heidari department of psychology, teacher training of shahid motahari, zahedan, iran. yahya kazemi department of education, university of sistan and baluchestan, zahedan, iran. zahra nikmanesh department of psychology, university of sistan and baluchestan, zahedan, iran.

objective: to investigate on relationship among family environment, pornography and sexual behavior of adolescents. pornography may start from early youth along with starting of sexual behavior. therefore it is important that the role of family factors in pornography be studied. materials and methods: the sample includes 362 students who were chosen by proportional cluster method from the first...

Journal: :Public health nutrition 2012
Marla Reicks Dennis Degeneffe Koel Ghosh Christine Bruhn L Suzanne Goodell Carolyn Gunther Garry Auld Miriam Ballejos Carol Boushey Mary Cluskey Scottie Misner Beth Olson SiewSun Wong Sahar Zaghloul

OBJECTIVE The study aimed to (i) segment parents of early adolescents into subgroups according to their Ca-rich-food (CRF) practices and perceptions regarding early adolescent CRF intake and (ii) determine whether Ca intake of parents and early adolescents differed by subgroup. DESIGN A cross-sectional convenience sample of 509 parents and their early adolescent children completed a questionn...

2016
Raquel Nogueira Avelar E Silva Anne Wijtzes Daphne van de Bongardt Petra van de Looij-Jansen Rienke Bannink Hein Raat

OBJECTIVES To assess the prospective associations of physical activity behaviors and screen time with early sexual intercourse initiation (i.e., before 15 years) in a large sample of adolescents. METHODS We used two waves of data from the Rotterdam Youth Monitor, a longitudinal study conducted in the Netherlands. The analysis sample consisted of 2,141 adolescents aged 12 to 14 years (mean age...

2016
Aart Franken Mitchell J. Prinstein Jan Kornelis Dijkstra Christian E. G. Steglich Zeena Harakeh Wilma A. M. Vollebergh

This study examined friendship (de-)selection processes in early adolescence. Pubertal development was examined as a potential moderator. It was expected that pubertal development would be associated with an increased tendency for adolescents to select their friends based on their similarities in externalizing behavior engagement (i.e., delinquency, alcohol use, and tobacco use). Data were used...

2018
Lili Tian Dandan Zhang E. Scott Huebner

We conducted two studies to explore the psychometric properties of the Positivity Scale (P Scale) among Chinese adults and early adolescents, using a sample of 552 adults (Study 1) and a sample of 888 early adolescents (i.e., middle school students) (Study 2). First, item analyses and factor analyses were conducted to investigate the one-factor structure of the P Scale. Second, internal consist...

Allahqoli L, Rahmani A

Background: It is estimated that 15 million births occur every year to adolescents. This represents about 11%of all births each year. The global average rate of births per 1000 females aged 15-19 years is 65. A range of social, cultural, biological and service delivery factors contribute to the high levels of adolescent pregnancy and childbirth. This study was conducted to determine the causes ...

2016
Aart Franken Terrie E. Moffitt Christian E. G. Steglich Jan Kornelis Dijkstra Zeena Harakeh Wilma A. M. Vollebergh

This social network study investigated the moderating role of self-control in the association between friendship and the development of externalizing behavior: Antisocial behavior, alcohol use, tobacco use. Previous studies have shown inconsistent findings, and did not control for possible friendship network or selection effects. We tested two complementary hypotheses: (1) That early-adolescent...

Journal: :Journal of Adolescent Health 2021

PurposeThis paper used data from the Global Early Adolescent Study (GEAS) to provide a descriptive analysis of how early adolescents' social environments vary by sex across diverse cultural settings.MethodsThe analyses were based on baseline among 10–14-year old adolescents living in disadvantaged urban areas seven sites: Kinshasa (DRC), Shanghai (China), Cuenca (Ecuador), Lampung, Semarang and...

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