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Article

Smartphone Application for Smoking Cessation (Quit with US): A Randomized Controlled Trial among Young Adult Light Smokers in Thailand

by
Phantara Chulasai
1,2,
Dujrudee Chinwong
3,4,
Purida Vientong
3,
Sunee Lertsinudom
5,
Penkarn Kanjanarat
3,
John J. Hall
6 and
Surarong Chinwong
3,4,*
1
PhD’s Degree Program in Pharmacy, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
2
Department of Social Pharmacy, Faculty of Pharmacy, Payap University, Chiang Mai 50000, Thailand
3
Department of Pharmaceutical Care, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
4
Center of Excellence for Innovation in Analytical Science and Technology for Biodiversity-Based Economic and Society (I-ANALY-S-T_B.BES-CMU), Chiang Mai University, Chiang Mai 50200, Thailand
5
Division of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
6
School of Population Health, Faculty of Medicine, University of New South Wales, Sydney 2052, Australia
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2022, 19(14), 8265; https://doi.org/10.3390/ijerph19148265
Submission received: 18 May 2022 / Revised: 25 June 2022 / Accepted: 29 June 2022 / Published: 6 July 2022
(This article belongs to the Special Issue Addressing Tobacco and Nicotine Use among Adolescent and Young Adult Populations)
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Abstract

This study aimed to determine the efficacy of a smartphone application named Quit with US among young adult smokers. An open-label, parallel, 2-group, randomized controlled trial with a 12-week follow-up was conducted between March and November 2020 among undergraduate students (18 to 24 years) in Chiang Mai Province, Thailand. A total of 273 participants were assigned by simple randomization procedure to the Quit with US intervention group (n = 137) or the control group (n = 136). All participants received pharmacists’ smoking cessation counseling at baseline and follow-ups. In addition, the intervention group’s participants were advised to use Quit with US. The baseline and 12-week follow-up assessments were conducted at a study unit, whereas other follow-ups were completed over the telephone. The primary abstinence outcome was the exhaled CO concentration level (≤6 ppm) verified 7-day point prevalence abstinence. At baseline, the participants’ mean (standard deviation) age was 21.06 (1.62) years. Most identified as daily smokers (57.9%, n = 158), consumed ≤10 cigarettes daily (89.4%, n = 244), and expressed low level of nicotine dependence as measured by Heaviness of Smoking Index score (86.1%, n = 235). Regarding intention-to-treat analyses, participants in the Quit with US intervention group achieved significantly greater smoking abstinence rate than those in the control group (58.4% (80/137) vs. 30.9% (42/136), risk ratio = 1.89, 95% confidence intervals = 1.42 to 2.52, p < 0.001). In conclusion, Quit with US integrated with pharmacists’ smoking cessation counseling significantly enhanced smoking abstinence rates among young adult light smokers consuming ≤ 10 cigarettes daily.
Keywords: smartphone application; smartphone app; smoking cessation; young adult smoker; randomized controlled trial smartphone application; smartphone app; smoking cessation; young adult smoker; randomized controlled trial

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MDPI and ACS Style

Chulasai, P.; Chinwong, D.; Vientong, P.; Lertsinudom, S.; Kanjanarat, P.; Hall, J.J.; Chinwong, S. Smartphone Application for Smoking Cessation (Quit with US): A Randomized Controlled Trial among Young Adult Light Smokers in Thailand. Int. J. Environ. Res. Public Health 2022, 19, 8265. https://doi.org/10.3390/ijerph19148265

AMA Style

Chulasai P, Chinwong D, Vientong P, Lertsinudom S, Kanjanarat P, Hall JJ, Chinwong S. Smartphone Application for Smoking Cessation (Quit with US): A Randomized Controlled Trial among Young Adult Light Smokers in Thailand. International Journal of Environmental Research and Public Health. 2022; 19(14):8265. https://doi.org/10.3390/ijerph19148265

Chicago/Turabian Style

Chulasai, Phantara, Dujrudee Chinwong, Purida Vientong, Sunee Lertsinudom, Penkarn Kanjanarat, John J. Hall, and Surarong Chinwong. 2022. "Smartphone Application for Smoking Cessation (Quit with US): A Randomized Controlled Trial among Young Adult Light Smokers in Thailand" International Journal of Environmental Research and Public Health 19, no. 14: 8265. https://doi.org/10.3390/ijerph19148265

APA Style

Chulasai, P., Chinwong, D., Vientong, P., Lertsinudom, S., Kanjanarat, P., Hall, J. J., & Chinwong, S. (2022). Smartphone Application for Smoking Cessation (Quit with US): A Randomized Controlled Trial among Young Adult Light Smokers in Thailand. International Journal of Environmental Research and Public Health, 19(14), 8265. https://doi.org/10.3390/ijerph19148265

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