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5. Increase of unmotivated and hardened smokers in Hong Kong: a repeated cross-sectional trend analysis

Author

Zhao, Sheng Zhi, Wu, Yongda, Cheung, Derek Yee Tak, Luk, Tzu Tsun, Weng, Xue, Tong, Henry Sau Chai, Lai, Vienna, Chan, Sophia Siu Chee, Lam, Tai Hing, and Wang, Man Ping

Abstract

ObjectivesTo examine the trends in the prevalence of hardening indicators and hardened smokers in Hong Kong, where the low smoking prevalence has plateaued in the recent decade.MethodsThis is an analysis of repeated cross-sectional data from 9 territory-wide smoking cessation campaigns conducted annually from 2009 to 2018 (except 2011). Participants were 9837 biochemically verified daily cigarette smokers aged ≥18 years (18.5% female, mean age 43.2±14.2 years) recruited from the communities. Hardening indicators included heavy smoking (>15 CPD), high nicotine dependence (Heaviness of Smoking Index ≥5), no intention to quit within next 30 days and no past-year quit attempt. Perceived importance, confidence and difficulty of quitting were measured (each ranged 0–10). Multivariable regressions were used to model the changes in hardening indicators by calendar year, adjusting for sociodemographic characteristics.ResultsFrom 2009 to 2018, the prevalence of heavy smoking decreased from 57.6% to 39.4% (p<0.001), high nicotine dependence also decreased from 10.5% to 8.6% (p=0.06). However, the proportion of smokers with no intention to quit (12.7%–69.0%) and no past-year quit attempt (74.4%–80.4%) significantly increased (both p values <0.001). Hardened smokers (heavy smoking, no intention to quit, no past-year attempt quit attempt) significantly increased from 5.9% to 20.7% (p<0.001). Mean perceived importance (from 7.9±2.3 to 6.6±2.5) and confidence (from 6.2±2.6 to 5.3±2.4) of quitting also decreased significantly (all p values <0.001).ConclusionsDaily cigarette smokers in Hong Kong were motivational hardening, but not dependence hardening. Effective tobacco control policies and interventions are warranted to motivate quitting to further reduce smoking prevalence.

Published
2024
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6. Perception of heated tobacco products and support for regulations: a cross-sectional study in Hong Kong

Author

Wu, Yongda Socrates, Cheung, Yee Tak Derek, Ho, Sai Yin, Tong, Henry Sau Chai, Lai, Vienna Wai Yin, Lam, Tai Hing, and Wang, Man Ping

Abstract

BackgroundHong Kong has proposed banning the sale of heated tobacco products (HTPs). Perceptions of reduced harms and effectiveness for quitting combustible cigarettes (CCs) of HTPs due to their promotions may erode public support for regulations. We assessed the associations between perceptions of HTPs and support for regulations in Hong Kong.MethodsIn two population-based landline surveys conducted in 2018–2019, 1985 respondents (51.4% male; 22.7% aged 60+ years) reported perceived relative harm of HTPs to CCs and effectiveness for quitting CCs, and support for five HTP regulations (ban on promotion and advertisements, use in smoke-free areas, sales to minors, registration before sale, sale licence) and a total ban on sale. Current and former smokers were oversampled due to low prevalence. Descriptive statistics were weighted to the general population. Associations were analysed, adjusting for sociodemographic characteristics, smoking status and ever HTP use.Results27.4% (N=515) of respondents perceived HTPs as less harmful, and 18.8% (N=1299) perceived them as effective for quitting CCs. Support was generally high (at least one regulation, 99.1%, N=1959; all five regulations, 66.8%, N=1114; total ban, 63.5%, N=946). Perceptions of reduced harm were associated with lower support for all five regulations (adjusted risk ratio 0.85, 0.75 to 0.96) and a total ban on sale (0.58, 0.51 to 0.66). Results were similar for perceptions of effectiveness for quitting.ConclusionsLower support for HTP regulations and a total ban on sale were associated with perceptions of reduced harm and effectiveness for quitting CCs of HTPs in Hong Kong.

Published
2024
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10. A Block Randomized Controlled Trial of a Brief Smoking Cessation Counselling and Advice through Short Message Service on Participants Who Joined the Quit to Win Contest in Hong Kong

Author

Chan, Sophia S. C., Wong, David C. N., Cheung, Yee Tak Derek, Leung, Doris Y. P., Lau, Lisa, Lai, Vienna, and Lam, Tai-Hing

Abstract

The present trial examined the effectiveness of brief interventions for smokers who joined the Hong Kong Quit to Win Contest to quit smoking. A block randomized controlled trial allocated 1003 adult daily smokers to three groups: (i) The TEL group (n = 338) received a 5-min nurse-led telephone counselling; (ii) The SMS group (n = 335) received eight text messages through mobile phone and (iii) The CONTROL group (n = 330) did not receive the above interventions. Participants with biochemically verified abstinence at 6-month follow-up could receive cash incentive. The primary outcome was the self-reported 7-day point prevalence (PP) of tobacco abstinence at 6-month follow-up. The abstinence rate in the TEL, SMS and CONTROL group was 22.2, 20.6 and 20.3%, respectively (P for TEL versus CONTROL = 0.32; P for SMS versus CONTROL = 0.40). When abstinence at 2-, 6- and 12-month follow-up was modelled simultaneously, the TEL group had a higher abstinence than the CONTROL group (Adjusted OR = 1.38, 95% CI = 1.01--1.88, P = 0.04). In the Quit to Win Contest, the brief telephone counselling might have increased abstinence, but the text messages had no significant effect. Further studies on intensive intervention and interactive messaging services are warranted.

Published
2015
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13. Circumventing tobacco control and safety policies to promote waterpipe use in smoking venues: the perspective of staff in waterpipe smoking venues.

Author

Jung Jae Lee, Karly Cheuk Yin Yeung, Man Ping Wang, Thorne, Sally, Sau Chai Tong, Henry, and Lai, Vienna

Subjects
EMPLOYEE psychology, EMPLOYEE attitudes, INDUSTRIAL safety, RESTAURANTS, RESEARCH methodology, WORK, INTERVIEWING, CHARCOAL, QUALITATIVE research, GOVERNMENT policy, BUSINESS, RESEARCH funding, SMOKING, TOBACCO products, PARTICIPANT observation, DATA analysis, INDUSTRIAL hygiene, TOBACCO, POLICE
Published
2023
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39. Effects of simple active referrals of different intensities on smoking abstinence and smoking cessation services attendance: a cluster‐randomized clinical trial

Author

Weng, Xue, primary, Luk, Tzu Tsun, additional, Suen, Yi Nam, additional, Wu, Yongda, additional, Li, Ho Cheung William, additional, Cheung, Yee Tak Derek, additional, Kwong, Antonio Cho Sshing, additional, Lai, Vienna Wai Yin, additional, Chan, Sophia Siu Chee, additional, Lam, Tai‐Hing, additional, and Wang, Man Ping, additional

Published
2020
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40. Association of heated tobacco product use with smoking cessation in Chinese cigarette smokers in Hong Kong: a prospective study.

Author

Tzu Tsun Luk, Xue Weng, Yongda Socrates Wu, Hiu Laam Chan, Ching Yin Lau, Cho-shing Kwong, Anthony, Wai-yin Lai, Vienna, Tai Hing Lam, and Man Ping Wang

Subjects
SMOKING cessation, CONFIDENCE intervals, AGE distribution, DESCRIPTIVE statistics, TOBACCO products, SMOKING, ODDS ratio, LONGITUDINAL method, SECONDARY analysis, EDUCATIONAL attainment
Published
2021
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44. Chat-based instant messaging support combined with brief smoking cessation interventions for Chinese community smokers in Hong Kong: Rationale and study protocol for a pragmatic, cluster-randomized controlled trial

Author

Luk, Tzu Tsun, primary, Li, William Ho Cheung, additional, Cheung, Derek Yee Tak, additional, Wong, Sze Wing, additional, Kwong, Antonio Cho Shing, additional, Lai, Vienna Wai Yin, additional, Chan, Sophia Siu-chee, additional, Lam, Tai Hing, additional, and Wang, Man Ping, additional

Published
2019
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