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dc.contributor.authorMednick, Sara C.
dc.contributor.authorChristakis, Nicholas Alexander
dc.contributor.authorFowler, James H.
dc.contributor.authorHashimoto, Kenji
dc.date.accessioned2010-09-29T19:47:54Z
dc.date.issued2010
dc.identifier.citationMednick, Sara C., Nicholas A. Christakis, James H. Fowler, and Kenji Hashimoto. 2010. The spread of sleep loss influences drug use in adolescent social networks. PLoS ONE 5(3): e9775.en_US
dc.identifier.issn1932-6203en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:4453984
dc.description.abstractTroubled sleep is a commonly cited consequence of adolescent drug use, but it has rarely been studied as a cause. Nor have there been any studies of the extent to which sleep behavior can spread in social networks from person to person to person. Here we map the social networks of 8,349 adolescents in order to study how sleep behavior spreads, how drug use behavior spreads, and how a friend's sleep behavior influences one's own drug use. We find clusters of poor sleep behavior and drug use that extend up to four degrees of separation (to one's friends' friends' friends' friends) in the social network. Prospective regression models show that being central in the network negatively influences future sleep outcomes, but not vice versa. Moreover, if a friend sleeps ≤7 hours, it increases the likelihood a person sleeps ≤7 hours by 11%. If a friend uses marijuana, it increases the likelihood of marijuana use by 110%. Finally, the likelihood that an individual uses drugs increases by 19% when a friend sleeps ≤7 hours, and a mediation analysis shows that 20% of this effect results from the spread of sleep behavior from one person to another. This is the first study to suggest that the spread of one behavior in social networks influences the spread of another. The results indicate that interventions should focus on healthy sleep to prevent drug use and targeting specific individuals may improve outcomes across the entire social network.en_US
dc.description.sponsorshipSociologyen_US
dc.language.isoen_USen_US
dc.publisherPublic Library of Scienceen_US
dc.relation.isversionofdoi:10.1371/journal.pone.0009775en_US
dc.relation.hasversionhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC2841645/pdf/en_US
dash.licenseOAP
dc.subjectsleep disordersen_US
dc.subjectsubstance abuseen_US
dc.subjectchild and adolescent psychiatryen_US
dc.titleThe Spread of Sleep Loss Influences Drug Use in Adolescent Social Networksen_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalPLoS ONEen_US
dash.depositing.authorChristakis, Nicholas Alexander
dc.date.available2010-09-29T19:47:54Z
dc.identifier.doi10.1371/journal.pone.0009775*
dash.contributor.affiliatedChristakis, Nicholas A.
dc.identifier.orcid0000-0001-5547-1086


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