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document
Addictive internet use among Korean adolescents : a national survey . BACKGROUND A psychological disorder called 'Internet addiction ' has newly emerged along with a dramatic increase of worldwide Internet use . However , few studies have used population-level samples nor taken into account contextual factors on Internet addiction . METHODS AND FINDINGS We identified 57,857 middle and high school students ( 13-18 year olds ) from a Korean nationally representative survey , which was surveyed in 2009 . To identify associated factors with addictive Internet use , two-level multilevel regression models were fitted with individual-level responses ( 1st level ) nested within schools ( 2nd level ) to estimate associations of individual and school characteristics simultaneously . Gender differences of addictive Internet use were estimated with the regression model stratified by gender . Significant associations were found between addictive Internet use and school grade , parental education , alcohol use , tobacco use , and substance use . Female students in girls ' schools were more likely to use Internet addictively than those in coeducational schools . Our results also revealed significant gender differences of addictive Internet use in its associated individual- and school-level factors . CONCLUSIONS Our results suggest that multilevel risk factors along with gender differences should be considered to protect adolescents from addictive Internet use .
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Intervention_Educational
'Internet addiction
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Intervention_Educational
individual-level responses
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Intervention_Educational
addictive Internet use
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Outcome_Mental
Addictive internet use
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Outcome_Mental
addictive Internet use
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Outcome_Mental
addictive Internet
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Outcome_Mental
Internet use
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Outcome_Mental
use Internet addictively
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Outcome_Mental
addictive Internet
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Outcome_Mental
addictive Internet use
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Participant_Age
adolescents
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Participant_Sample-size
57,857
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Participant_Age
13-18 year olds
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Participant_Sex
Female
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Participant_Age
adolescents