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28.07.2017 | Ausgabe 2/2018

Prevention Science 2/2018

A Brief Smoking Cessation Advice by Youth Counselors for the Smokers in the Hong Kong Quit to Win Contest 2010: a Cluster Randomized Controlled Trial

Prevention Science > Ausgabe 2/2018
Sophia Siu Chee Chan, Yee Tak Derek Cheung, Yee Man Bonny Wong, Antonio Kwong, Vienna Lai, Tai-hing Lam
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Electronic supplementary material

The online version of this article (doi:10.​1007/​s11121-017-0823-z) contains supplementary material, which is available to authorized users.


Smoking cessation counseling by healthcare professionals is effective, but very few healthcare professionals can deliver these interventions in the busy clinical settings. This study aimed to evaluate the effectiveness of a brief smoking cessation advice delivered by briefly-trained youth counselors at the enrolment of an incentive-based smoking cessation campaign. The study design was a cluster 2-arm randomized controlled trial of 831 Chinese adult smokers who were recruited in public areas to participate in the Hong Kong Quit to Win Contest 2010. The intervention group (n = 441) received a 5-min quitting advice from the youth counselors, who were mainly undergraduate nursing students, and a 12-page self-help smoking cessation booklet at the enrolment, while the control group (n = 390) only received the same booklet. Biochemically confirmed quitters at 6-month follow-up could join a lucky draw that offered HK$10,000 (US$1282) cash prize to three winners and HK$4000 gift vouchers to the other 10 winners. Primary outcome was self-reported smoking abstinence at 6-month follow-up. By intention-to-treat, the intervention group had a non-significantly higher self-reported (18.4 versus 13.8%, OR = 1.40, 95% CI 0.96–2.04, p = 0.08) and validated quit rate (9.1 versus 6.7%, OR = 1.40, 95% CI 0.84–2.33, p = 0.20) than the control group at 6-month follow-up. The analysis with multiple imputation for missing data also found similar results. We concluded that the brief on-site advice by trained youth counselors had a modest effect on smoking cessation, but the effect was not significant. Future studies with larger sample size and results from higher participation of the biochemical validation to confirm the effectiveness are warranted.

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Appendix 1 (DOCX 18 kb)
Appendix 2 (DOCX 19 kb)
Appendix 3 (DOCX 19 kb)
Appendix 4 (DOCX 20 kb)
Appendix 5 (DOCX 18 kb)
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