Dr LUK Tzu Tzun, Kevin

Dr LUK Tzu Tzun, Kevin

Assistant Professor

Alice Lee Centre for Nursing Studies (NUS Nursing),
Yong Loo Lin School of Medicine, National University of Singapore.

Teaching Areas

Dr Kevin Luk is a registered nurse and Assistant Professor at Alice Lee Centre for Nursing Studies, National University of Singapore (NUS). Before joining NUS, he worked at the School of Nursing at the University of Hong Kong, where he earned his bachelor’s and PhD degrees. He was also appointed as a visiting professor at Dalla Lana School of Public Health, The University of Toronto.

Dr Luk’s research focuses on devising, testing, and implementing scalable and sustainable interventions to address lifestyle risk factors, especially tobacco use. He has published over 50 articles in international, peer-reviewed journals, including in Lancet Digital Health, JAMA Internal Medicine and JAMA Network Open as a lead author. His doctoral study on using mobile instant messaging apps to deliver chat-based support has laid the groundwork for similar treatment models targeting tobacco use and other lifestyle risks. His research has also influenced smoking cessation practices and tobacco control legislation in Hong Kong. His expertise is recognised by his appointment as Associate Editor for Nicotine & Tobacco Research.

Currently, Dr Luk is leading four competitive external grants for evaluating advanced digital health interventions for tobacco cessation, gestational diabetes prevention, and alcohol reduction in liver patients.

Education

  • Doctor of Philosophy, The University of Hong Kong
  • Bachelor of Nursing (First Class Honours), The University of Hong Kong

Research Interests

  • Tobacco cessation & control
  • Lifestyle intervention
  • Digital health
  • Implementation research

Publications DOI Impact Factor
Chen, H., Yip, A. O. N., Cheung, Y. T. D., Chan, S. S. C., Lam, T. H., Wang, M. P., & Luk, T. T.* (2024). Reaching Youth Smokers Through a Multipronged Approach: Comparison of Three Recruitment Methods of a Youth Quitline in Hong Kong. J Adolesc Health (in press) https://doi.org/10.1016/j.jadohealth.2024.07.017 5.5
Li, Y., Luk, T. T.*, Cheung, Y. T. D., Zhao, S., Zeng, Y., Tong, H. S. C., Lai, V. W. Y., & Wang, M. P. (2024). Engagement With a Mobile Chat-Based Intervention for Smoking Cessation: A Secondary Analysis of a Randomized Clinical Trial. JAMA Netw Open, 7(6), e2417796. https://doi.org/10.1001/jamanetworkopen.2024.17796 10.5
Chau, S. L., Luk, T. T., Wong, B. Y. C., Wu, Y. S., Cheung, Y. T. D., Ho, S. Y., Kim, J. H., Lo, H. H. M., Lam, T. H., & Wang, M. P. (2024). A Brief Intervention With Instant Messaging or Regular Text Messaging Support in Reducing Alcohol Use: A Randomized Clinical Trial. JAMA Intern Med, 184(6), 641-649. https://doi.org/10.1001/jamainternmed.2024.0343 22.5
Cheung, Y. T. D., Zhang, G., Luk, T. T., Zhang, M., Lam, V. S. F., Chan, M. M. K., Wang, M. P., & Chan, S. S. C. (2024). Effect of narrative videos and mini-VR games in nursing smoking cessation training on empathy and self-efficacy of smoking cessation counseling: A randomized controlled trial. Nurse Educ Today, 140, 106272. https://doi.org/10.1016/j.nedt.2024.106272 3.6
Cheng, C. C. W., He, W. J. A., Gouda, H., Zhang, M. J., Luk, T. T., Wang, M. P., Lam, T. H., Chan, S. S. C., & Cheung, Y. T. D. (2024). Effectiveness of Very Brief Advice on Tobacco Cessation: A Systematic Review and Meta-Analysis. J Gen Intern Med, 39(9), 1721-1734. https://doi.org/10.1007/s11606-024-08786-8 4.3
Zhang, G., Zhou, J., Luk, T. T., Lam, V. S. F., Yao, Z., Wang, M. P., & Cheung, Y. T. D. (2024). The learning outcomes of smoking cessation training in undergraduate nursing students: A systematic review. Nurse Educ Pract, 75, 103907. https://doi.org/10.1016/j.nepr.2024.103907 3.3
Zhang, M. J., Luk, T. T., Ho, S. Y., Wang, M. P., Lam, T. H., & Cheung, Y. T. D. (2024). Ecological Momentary Assessment of Alcohol Marketing Exposure, Alcohol Use, and Purchases Among University Students: Prospective Cohort Study. JMIR mHealth uHealth, 12, e60052. https://doi.org/10.2196/60052 5.4
Zhao, S. Z., Wu, Y., Cheung, D. Y. T., Luk, T. T., Weng, X., Tong, H. S. C., Lai, V., Chan, S. S. C., Lam, T. H., & Wang, M. P. (2024). Increase of unmotivated and hardened smokers in Hong Kong: a repeated cross-sectional trend analysis. Tob Control, 33(4), 481-488. https://doi.org/10.1136/tc-2022-057724 4.0
Luk, T. T.*, Cheung, Y. T. D., Chan, H. C., Fok, P. W., Ho, K. S., Sze, C. D., Lam, T. H., & Wang, M. P. (2023). Mobile Chat Messaging for Preventing Smoking Relapse Amid the COVID-19 Pandemic: A Pilot Randomized Controlled Trial. Nicotine Tob Res, 25(2), 291-297. https://doi.org/10.1093/ntr/ntac045 3.0
Weng, X., Luk, T. T. (co-first author), Wu, Y. S., Zhao, S. Z., Cheung, D. Y. T., Tong, H. S. C., Lai, V. W. Y., Lam, T. H., & Wang, M. P. (2023). Effect of smoking-related COVID-19 risk messaging on smoking cessation in community smokers: A pragmatic randomized controlled trial. Tob Induc Dis, 21, 77. https://doi.org/10.18332/tid/163176 2.2
Luk, T. T., Lui, J. H. T., & Wang, M. P. (2022). Efficacy, Usability, and Acceptability of a Chatbot for Promoting COVID-19 Vaccination in Unvaccinated or Booster-Hesitant Young Adults: Pre-Post Pilot Study. J Med Internet Res, 24(10), e39063. https://doi.org/10.2196/39063 https://doi.org/10.2196/39063 5.8
Zeng, Y., Luk, T. T.*, Wu, Y. S., Tong, S., Lai, W. Y. V., Lam, T. H., & Wang, M. P. (2022). Associations of changes in smoking-related practices with quit attempt and smoking consumption during the COVID-19 pandemic: A mixed-methods study. Tob Induc Dis, 20, 20. https://doi.org/10.18332/tid/156454 2.2
Guo, N., Luk, T. T., Wu, Y., Lai, A. Y., Li, Y., Cheung, D. Y. T., Wong, J. Y., Fong, D. Y. T., & Wang, M. P. (2022). Between- and within-person associations of mobile gaming time and total screen time with sleep problems in young adults: Daily assessment study. Addict Behav, 134, 107408. https://doi.org/10.1016/j.addbeh.2022.107408 3.7
Yuan, C., Adeloye, D., Luk, T. T., Huang, L., He, Y., Xu, Y., Ye, X., Yi, Q., Song, P., & Rudan, I. (2022). The global prevalence of and factors associated with Helicobacter pylori infection in children: a systematic review and meta-analysis. Lancet Child Adolesc Health, 6(3), 185-194. https://doi.org/10.1016/s2352-4642(21)00400-4 19.9
Shorey, S., Ang, E., Baridwan, N. S., Bonito, S. R., Dones, L. B. P., Flores, J. L. A., Freedman-Doan, R., Fukahori, H., Hirooka, K., Koy, V., Lee, W. L., Lin, C. C., Luk, T. T., Nantsupawat, A., Nguyen, A. T. H., Nurumal, M. S., Phanpaseuth, S., Setiawan, A., Shibuki, T.,…Kunaviktikul, W. (2022). Salutogenesis and COVID-19 pandemic impacting nursing education across SEANERN affiliated universities: A multi-national study. Nurse Educ Today, 110, 105277. https://doi.org/10.1016/j.nedt.2022.105277 3.6
Kunaviktikul, W., Ang, E., Baridwan, N. S., Bernal, A. B., Dones, L. B. P., Flores, J. L., Freedman-Doan, R., Klunklin, A., Lee, W. L., Lin, C. C., Luk, T. T., Nguyen, A. T. H., Nurumal, M. S., Setiawan, A., Sumaiyah Jamaluddin, T. S., Huy, T. Q., Tungpunkom, P., Wati, N., Xu, X., & Shorey, S. (2022). Nursing students' and faculty members' experiences of online education during COVID-19 across Southeast Asia: A Photovoice study. Nurse Educ Today, 111, 105307. https://doi.org/10.1016/j.nedt.2022.105307 3.6
Ren, Z., Yi, Q., Hou, L., Luk, T. T., Qiu, Y., Xia, W., Zhu, Y., Song, P., & Rahimi, K. (2022). Lactation Duration and the Risk of Subtypes of Stroke Among Parous Postmenopausal Women From the China Kadoorie Biobank. JAMA Netw Open, 5(2), e220437. https://doi.org/10.1001/jamanetworkopen.2022.0437 10.5
Wu, Y. S., Chan, H. L., Ho, S. Y., Zhao, S. Z., Luk, T. T., Lam, T. H., & Wang, M. P. (2022). A content analysis of heated tobacco product business in Hong Kong on Facebook. Health Soc Care Community, 30(6), e5685-e5692. https://doi.org/10.1111/hsc.13997 2.0
Luk, T. T., Lam, T. H., Leung, W. C., Leung, K. Y., Cheung, K. W., Kwa, C., Siong, K. H., Tang, K. K., Lee, K. W., Hsieh, C. J., Wu, Y. S., Li, W. H., & Wang, M. P. (2021). Brief Advice, Nicotine Replacement Therapy Sampling, and Active Referral for Expectant Fathers Who Smoke Cigarettes: A Randomized Clinical Trial. JAMA Intern Med, 181(8), 1081-1089. https://doi.org/10.1001/jamainternmed.2021.2757 22.5
Luk, T. T., Zhao, S., Wu, Y., Wong, J. Y., Wang, M. P., & Lam, T. H. (2021). Prevalence and determinants of SARS-CoV-2 vaccine hesitancy in Hong Kong: A population-based survey. Vaccine, 39(27), 3602-3607. https://doi.org/10.1016/j.vaccine.2021.05.036 4.5
Weng, X., Wu, Y., Luk, T. T., Li, W. H. C., Cheung, D. Y. T., Tong, H. S. C., Lai, V., Lam, T. H., & Wang, M. P. (2021). Active referral plus a small financial incentive upon cessation services use on smoking abstinence: a community-based, cluster-randomised controlled trial. Lancet Reg Health West Pac, 13, 100189. https://doi.org/10.1016/j.lanwpc.2021.100189 7.6
Zhao, S. Z., Luk, T. T., Guo, N., Wang, M. P., Lai, A. Y. K., Wong, B. Y. M., Fong, D. Y. T., Chan, S. S. C., & Lam, T. H. (2021). Association of Mobile Instant Messaging Chat Group Participation With Family Functioning and Well-Being: Population-Based Cross-sectional Study. J Med Internet Res, 23(3), e18876. https://doi.org/10.2196/18876 5.8
Li, Y., Luk, T. T.*, Wu, Y., Cheung, D. Y. T., Li, W. H. C., Tong, H. S. C., Lai, V. W. Y., Ho, S. Y., Lam, T. H., & Wang, M. P. (2021). High Perceived Susceptibility to and Severity of COVID-19 in Smokers Are Associated with Quitting-Related Behaviors. Int J Environ Res Public Health, 18(20). https://doi.org/10.3390/ijerph182010894 4.614
Luk, T. T., Weng, X., Wu, Y. S., Chan, H. L., Lau, C. Y., Kwong, A. C., Lai, V. W., Lam, T. H., & Wang, M. P. (2021). Association of heated tobacco product use with smoking cessation in Chinese cigarette smokers in Hong Kong: a prospective study. Tob Control, 30(6), 653-659. https://doi.org/10.1136/tobaccocontrol-2020-055857 4.0
Luk, T. T., Zhao, S., Weng, X., Wong, J. Y., Wu, Y. S., Ho, S. Y., Lam, T. H., & Wang, M. P. (2021). Exposure to health misinformation about COVID-19 and increased tobacco and alcohol use: a population-based survey in Hong Kong. Tob Control, 30(6), 696-699. https://doi.org/10.1136/tobaccocontrol-2020-055960 4.0
Wang, M. P., Luk, T. T. (co-first author), Wu, Y., Li, W. H., Cheung, D. Y., Kwong, A. C., Lai, V., Chan, S. S., & Lam, T. H. (2019). Chat-based instant messaging support integrated with brief interventions for smoking cessation: a community-based, pragmatic, cluster-randomised controlled trial. Lancet Digit Health, 1(4), e183-e192. https://doi.org/10.1016/s2589-7500(19)30082-2 23.8
Luk, T. T., Wong, S. W., Lee, J. J., Chan, S. S., Lam, T. H., & Wang, M. P. (2019). Exploring Community Smokers' Perspectives for Developing a Chat-Based Smoking Cessation Intervention Delivered Through Mobile Instant Messaging: Qualitative Study. JMIR mHealth uHealth, 7(1), e11954. https://doi.org/10.2196/11954 5.4
Luk, T. T., Wang, M. P., Suen, Y. N., Koh, D. S., Lam, T. H., & Chan, S. S. (2018). Early childhood exposure to secondhand smoke and behavioural problems in preschoolers. Sci Rep, 8(1), 15434. https://doi.org/10.1038/s41598-018-33829-6 3.7
Luk, T. T., Wang, M. P., Shen, C., Wan, A., Chau, P. H., Oliffe, J., Viswanath, K., Chan, S. S., & Lam, T. H. (2018). Short version of the Smartphone Addiction Scale in Chinese adults: Psychometric properties, sociodemographic, and health behavioral correlates. J Behav Addict, 7(4), 1157-1165. https://doi.org/10.1556/2006.7.2018.105 6.6
Luk, T. T., Wang, M. P., Leung, L. T., Chen, J., Wu, Y., Lam, T. H., & Ho, S. Y. (2018). Perceived family relationship quality and use of poly-tobacco products during early and late adolescence. Addict Behav, 85, 38-42. https://doi.org/10.1016/j.addbeh.2018.05.011 3.7
Luk, T. T., Wang, M. P., Leung, L. T., Wu, Y., Chen, J., Lam, T. H., & Ho, S. Y. (2017). Associations of perceived interparental relationship, family harmony and family happiness with smoking intention in never-smoking Chinese children and adolescents: a cross-sectional study. BMJ Open, 7(10), e017523. https://doi.org/10.1136/bmjopen-2017-017523 2.4
Awards and Honors Year
Faculty Outstanding Research Output Award, LKS Faculty of Medicine, The University of Hong Kong 2022
Faculty Knowledge Exchange Award 2022, LKS Faculty of Medicine, The University of Hong Kong 2022
Pi Iota Chapter Scholarship, Sigma Theta Tau International Honor Society of Nursing 2019
SRNT Travel Award, Society for Research on Nicotine & Tobacco, US 2019
YS and Christabel Lung Postgraduate Scholarship, The University of Hong Kong 2019
Year Project title Funding Organization
Sep 2024–Feb 2026 Mobile chat messaging plus screening-based brief alcohol intervention for patients with chronic liver diseases: a pilot randomised controlled trial Health and Medical Research Fund, HK (PI)
Apr 2024-Mar 2025 Building capacity and promoting smoking cessation in the community via “Quit to Win” Contest 2024: a randomised controlled trial of a brief behavioural economic intervention Hong Kong Council of Smoking and Health (PI)
Jan 2024–Jun 2026 Mobile instant messaging-based lifestyle intervention for pregnant women at risk of gestational diabetes: a randomised controlled trial General Research Fund, Research Grants Council, HK (PI)
Sep 2023–May 2025 Development of a chatbot for smoking cessation counselling for youth smokers enrolled in the Youth Quitline: a pilot randomised trial. Health and Medical Research Fund, HK (PI)
Sep 2022–Feb 2025 Effectiveness of mobile chat messaging for preventing relapse in smokers who have recently quit smoking: a randomised controlled trial Health and Medical Research Fund, HK (PI)