{"doi":"10.2105/ajph.2019.305421","title":"Trends in E-Cigarette, Cigarette, Cigar, and Smokeless Tobacco Use Among US Adolescent Cohorts, 2014–2018","abstract":"<jats:p> Objectives. To examine changes in age of initiation of e-cigarette, cigarette, cigar, and smokeless tobacco use among adolescents in the United States. </jats:p><jats:p> Methods. We used data from 5 cohorts of the National Youth Tobacco Survey (2014–2018; n = 26 662). </jats:p><jats:p> Results. In 2014, 8.8% of lifetime e-cigarette users initiated use at 14 years or younger, as compared with 28.6% of lifetime e-cigarette users in 2018. There was no such change in initiation ages for cigarettes, cigars, and smokeless tobacco among lifetime users of each of these products. </jats:p><jats:p> Conclusions. US adolescents are initiating e-cigarette use at younger ages in recent years. This is concerning given the association of e-cigarette use with subsequent cigarette use. Continued surveillance of these trends and additional prospective research are needed. Tobacco prevention programs, policies, and regulations that make it more difficult for youths to obtain e-cigarettes are warranted. </jats:p>","journal":"American Journal of Public Health","year":2020,"id":674775,"datarank":0.6090664515819629,"base_score":4.060443010546419,"endowment":4.060443010546419,"self_citation_contribution":0.6090664515819629,"citation_network_contribution":0.0,"self_endowment_contribution":0.6090664515819629,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":57,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1721391,"name":"Phil Veliz","orcid":null,"position":1,"is_corresponding":false},{"id":416060,"name":"Carol J. Boyd","orcid":"0000-0003-2651-6614","position":2,"is_corresponding":false},{"id":368100,"name":"Vita V. McCabe","orcid":null,"position":3,"is_corresponding":false},{"id":907564,"name":"Sean Esteban McCabe","orcid":null,"position":4,"is_corresponding":false},{"id":1763013,"name":"Rebecca Evans-Polce","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Trends in E-Cigarette, Cigarette, Cigar, and Smokeless Tobacco Use Among US Adolescent Cohorts, 2014–2018","abstract":"<jats:p> Objectives. To examine changes in age of initiation of e-cigarette, cigarette, cigar, and smokeless tobacco use among adolescents in the United States. </jats:p><jats:p> Methods. We used data from 5 cohorts of the National Youth Tobacco Survey (2014–2018; n = 26 662). </jats:p><jats:p> Results. In 2014, 8.8% of lifetime e-cigarette users initiated use at 14 years or younger, as compared with 28.6% of lifetime e-cigarette users in 2018. There was no such change in initiation ages for cigarettes, cigars, and smokeless tobacco among lifetime users of each of these products. </jats:p><jats:p> Conclusions. US adolescents are initiating e-cigarette use at younger ages in recent years. This is concerning given the association of e-cigarette use with subsequent cigarette use. Continued surveillance of these trends and additional prospective research are needed. Tobacco prevention programs, policies, and regulations that make it more difficult for youths to obtain e-cigarettes are warranted. </jats:p>","is_dataset_classified":null,"base_score":4.060443010546419,"endowment":4.060443010546419,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"31855480","pmcid":null,"openalex_id":"https://openalex.org/W2994852031","authors":[],"funders":[{"funder_name":"NIDA NIH HHS","grant_id":"R01 DA044157","title":null},{"funder_name":"NCI NIH HHS","grant_id":"R01 CA203809","title":null},{"funder_name":"National Institutes of Health","grant_id":"5R01DA044157-03","title":"Prospective Examination of E-Cigarette Use, Tobacco Use Disorder and Health Consequences by U.S. Youth"},{"funder_name":"National Institutes of Health","grant_id":"1R01CA203809-01","title":"E-Cigarette Use and Longitudinal Changes in Cigarette Smoking and Health"}],"total_grants":4,"fwci":3.8436,"citation_percentile":0.94529105,"influential_citations":0,"citation_trend":[{"year":2020,"count":6},{"year":2021,"count":16},{"year":2022,"count":10},{"year":2023,"count":9},{"year":2024,"count":7},{"year":2025,"count":6},{"year":2026,"count":2}],"oa_status":"green","license":null,"oa_locations":[{"url":"https://www.ncbi.nlm.nih.gov/pmc/articles/6951377","host_type":"repository"},{"url":"https://www.ncbi.nlm.nih.gov/pmc/articles/6951377","host_type":"repository"},{"url":"https://ajph.aphapublications.org/doi/pdf/10.2105/AJPH.2019.305421","host_type":"publisher"},{"url":"https://doi.org/10.2105/ajph.2019.305421","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/31855480","host_type":"repository"},{"url":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6951377","host_type":""},{"url":"https://dx.doi.org/10.2105/ajph.2019.305421","host_type":""}],"fields_of_study":["Smoking Behavior and Cessation","Obesity, Physical Activity, Diet","School Health and Nursing Education","03 medical and health sciences","0302 clinical medicine","Adolescent","Cross-Sectional Studies","Health Surveys","Humans","Prospective Studies","Tobacco Smoking","Tobacco, Smokeless","United States","Vaping"],"mesh_terms":["Vaping","Tobacco Smoking","Adolescent","Cross-Sectional Studies","Health Surveys","Humans","Prospective Studies","Tobacco, Smokeless","United States"],"keywords":["Smokeless tobacco","Medicine","Environmental health","Cigarette smoking","Tobacco use","Electronic cigarette","Demography","Population","Cross-Sectional Studies","Tobacco, Smokeless","Adolescent","Vaping","Tobacco Smoking","Humans","Prospective Studies","Health Surveys","United States"],"sdg_mappings":[{"sdg_number":3,"sdg_label":"3. 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