PURPOSE: The purpose of this study was to develop an integrated internet addiction prevention program and test its effects on the self-regulation and internet addiction of elementary students who are at risk for internet addiction. METHODS: A quasi-experimental study with a nonequivalent control group pretest-posttest design was used. Participants were assigned to the experimental group (n=28) or control group (n=28). Contents of the program developed in this study included provision of information about internet addiction, interventions for empowerment and methods of behavioral modification. A pre-test and two post-tests were done to identify the effects of the program and their continuity. Effects were testified using Repeated measures ANOVA, simple effect analysis, and Time Contrast. RESULTS: The self-regulation of the experimental group after the program was significantly higher than the control group. The score for internet addiction self-diagnosis and the internet use time in the experimental group were significantly lower than the control group. CONCLUSION: The effects of the integrated internet addiction prevention program for preventing internet addiction in elementary students at risk for internet addiction were validated.
Behavior, Addictive/*prevention & control/psychology ; Child ; Female ; Humans ; Internet ; Male ; Power (Psychology) ; Program Development ; *Program Evaluation ; Self-Control/*psychology

PURPOSE: There were a lot of reports regarding associations of polymorphisms in the estrogen receptor alpha (ESR1). with many disorders. But, those with constitutional delay of growth and puberty (CDGP) are not known. Our aim is to find out any association between CDGP and ESR1. METHODS: In a total of 27 subjects, we compared 7 CDGP patients with 20 healthy controls with their heights and sexual maturity rates were within normal range. We selected three single nucleotide polymorphisms from intron 1 of ESR1 (rs3778609, rs12665044, and rs827421) as candidates, respectively. RESULTS: In genotype analyses, the frequency of G/G genotype at rs827421 in intron 1 of ESR1 was increased in CDGP boys (P=0.03). CONCLUSION: The genetic variation of ESR1 can be a contributing factor of tempo of growth and puberty.
Cyclic N-Oxides ; Estrogen Receptor alpha ; Estrogens ; Genetic Variation ; Genotype ; Humans ; Introns ; Polymorphism, Single Nucleotide ; Puberty ; Reference Values

PURPOSE: There were a lot of reports regarding associations of polymorphisms in the estrogen receptor alpha (ESR1). with many disorders. But, those with constitutional delay of growth and puberty (CDGP) are not known. Our aim is to find out any association between CDGP and ESR1. METHODS: In a total of 27 subjects, we compared 7 CDGP patients with 20 healthy controls with their heights and sexual maturity rates were within normal range. We selected three single nucleotide polymorphisms from intron 1 of ESR1 (rs3778609, rs12665044, and rs827421) as candidates, respectively. RESULTS: In genotype analyses, the frequency of G/G genotype at rs827421 in intron 1 of ESR1 was increased in CDGP boys (P=0.03). CONCLUSION: The genetic variation of ESR1 can be a contributing factor of tempo of growth and puberty.
Cyclic N-Oxides ; Estrogen Receptor alpha ; Estrogens ; Genetic Variation ; Genotype ; Humans ; Introns ; Polymorphism, Single Nucleotide ; Puberty ; Reference Values