Reporting and methodological quality of systematic literature reviews evaluating the associations between e-cigarette use and cigarette smoking behaviors: a systematic quality review

[1] Bunnell RE(2015)Intentions to smoke cigarettes among never-smoking US middle and high school electronic cigarette users: National Youth Tobacco Survey, 2011–2013 Nicotine Tob Res 17 228-235

[2] Agaku IT(2019)Tobacco product use and cessation indicators among adults—United States, 2018 MMWR Morb Mortal Wkly Rep 68 1013-1019

[3] Arrazola RA(2017)Tobacco Use Among Middle and High School Students - United States, 2011–2016 MMWR Morb Mortal Wkly Rep 66 597-603

[4] Apelberg BJ(2020)Temporal trends in e-cigarette use among U.S. adults: behavioral risk factor surveillance system, 2016 to 2018 Am J Med 133 e508-e511

[5] Caraballo RS(2020)Trends in cigarette smoking among American Indians and Alaska Natives in the USA: 1992–2015 Cancer Causes Control CCC 31 73-82

[6] Corey CG(2020)Trends in the age of cigarette smoking initiation among young adults in the US from 2002 to 2018 JAMA Netw Open 3 e2019022-55

[7] Creamer MR(2014)Softening of monthly cigarette use in youth and the need to harden measures in surveillance Prev Med Rep 1 53-1672

[8] Wang TW(2021)Balancing consideration of the risks and benefits of e-cigarettes Am J Public Health 111 1661-1783

[9] Babb S(2016)Is vaping a gateway to smoking: a review of the longitudinal studies Int J Adolesc Med Health 113 1776-433

[10] Cullen KA(2018)Gateway effects and electronic cigarettes Addiction 12 8-406

[1] Bunnell RE(2015)Intentions to smoke cigarettes among never-smoking US middle and high school electronic cigarette users: National Youth Tobacco Survey, 2011–2013 Nicotine Tob Res 17 228-235

[2] Agaku IT(2019)Tobacco product use and cessation indicators among adults—United States, 2018 MMWR Morb Mortal Wkly Rep 68 1013-1019

[3] Arrazola RA(2017)Tobacco Use Among Middle and High School Students - United States, 2011–2016 MMWR Morb Mortal Wkly Rep 66 597-603

[4] Apelberg BJ(2020)Temporal trends in e-cigarette use among U.S. adults: behavioral risk factor surveillance system, 2016 to 2018 Am J Med 133 e508-e511

[5] Caraballo RS(2020)Trends in cigarette smoking among American Indians and Alaska Natives in the USA: 1992–2015 Cancer Causes Control CCC 31 73-82

[6] Corey CG(2020)Trends in the age of cigarette smoking initiation among young adults in the US from 2002 to 2018 JAMA Netw Open 3 e2019022-55

[7] Creamer MR(2014)Softening of monthly cigarette use in youth and the need to harden measures in surveillance Prev Med Rep 1 53-1672

[8] Wang TW(2021)Balancing consideration of the risks and benefits of e-cigarettes Am J Public Health 111 1661-1783

[9] Babb S(2016)Is vaping a gateway to smoking: a review of the longitudinal studies Int J Adolesc Med Health 113 1776-433

[10] Cullen KA(2018)Gateway effects and electronic cigarettes Addiction 12 8-406