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- Title
Effectiveness of a self-determination theory-based smoking cessation intervention plus instant messaging via mobile application for smokers with cancer: Protocol for a pragmatic randomized controlled trial.
- Authors
Ho Cheung Li, William; Chi Leung Lam, David; Kit Man Sin; Lai Yi Wong, Eliza; King Ho Wong, Carlos; Ho Fung Loong, Herbert; Kai Yeung Cheung; Wei Xia; Peige Song; Oi Kwan Chung, Joyce
- Abstract
Background and aims: Despite evidence that patients living with cancer who continue to smoke after diagnosis are at higher risk for all-cause mortality and reduced treatment efficacy, many cancer patients continue to smoke. This protocol is for a study to test the effectiveness of a self-determination theory-based intervention (quit immediately or progressively) plus instant messaging (WhatsApp or WeChat) to help smokers with cancer to quit smoking. Design: This will be a multi-centre, two-arm (1:1), single-blind, pragmatic, individually randomized controlled trial. Setting: Taking part will be specialist outpatient clinics in five major hospitals in different location-based clusters in Hong Kong. Participants: The sample will include 1448 Chinese smokers living with cancer attending medical follow-ups at outpatient clinics. Interventions: The intervention group will receive brief advice (approximately 5-- 8 minutes) from research nurses in the outpatient clinics and then be invited to choose their own quit schedules (immediate or progressive). During the first 6-month follow-up period they will receive instant messaging with smoking cessation advice once per week for the first 3 months, and thereafter approximately once per month. They will also receive four videos, and those opting to quit progressively will receive a smoking reduction leaflet. The control group will also receive brief advice but be advised to quit immediately, and instant messaging with general health advice during the first 6-month follow-up period using the same schedule as the intervention group. Participants in both groups will receive smoking cessation leaflets. Measurements: The primary outcome is biochemically validated smoking abstinence at 6 months, as confirmed by saliva cotinine level and carbon monoxide level in expired air. Secondary outcomes include biochemically validated smoking abstinence at 12 months, self-reported 7-day point prevalence of smoking abstinence at 6 and 12 months, selfreported ≥ 50% reduction of cigarette consumption at 6 and 12 months and quality of life at 6 and 12 months. All time-points for outcomes measures are set after randomization. Comments: The results could inform research, policymaking and health-care professionals regarding smoking cessation for patients living with cancer, and therefore have important implications for clinical practice and health enhancement.
- Subjects
SMOKING cessation; INSTANT messaging; MOBILE apps; PSYCHOTHERAPY; AUTONOMY (Psychology); SMOKING; TREATMENT effectiveness; RANDOMIZED controlled trials; TUMORS
- Publication
Addiction, 2024, Vol 119, Issue 8, p1468
- ISSN
0965-2140
- Publication type
Article
- DOI
10.1111/add.16521