Digital Smoking Cessation Intervention for Cancer Survivors: Analysis of Predictors and Moderators of Engagement and Outcome Alongside a Randomized Controlled Trial

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Abstract

Background

Recent studies have shown positive, though small, clinical effects of digital smoking cessation (SC) interventions for cancer survivors. However, research on associations among participant characteristics, intervention engagement, and outcomes is limited.

Objective

This study aimed to explore the predictors and moderators of engagement and outcome of MyCourse-Quit Smoking (in Dutch: “MijnKoers-Stoppen met Roken”), a digital minimally guided intervention for cancer survivors.

Methods

A secondary analysis of data from the randomized controlled trial was performed. The number of cigarettes smoked in the past 7 days at 6-month follow-up was the primary outcome measure. We analyzed interactions among participant characteristics (11 variables), intervention engagement (3 variables), and outcome using robust linear (mixed) modeling.

Results

In total, 165 participants were included in this study. Female participants accessed the intervention less often than male participants (B=–11.12; P=.004). A higher Alcohol Use Disorders Identification Test score at baseline was associated with a significantly higher number of logins (B=1.10; P<.001) and diary registrations (B=1.29; P<.001). A higher Fagerström Test for Nicotine Dependence score at baseline in the intervention group was associated with a significantly larger reduction in tobacco use after 6 months (B=–9.86; P=.002). No other associations and no moderating effects were found.

Conclusions

Overall, a limited number of associations was found between participant characteristics, engagement, and outcome, except for gender, problematic alcohol use, and nicotine dependence. Future studies are needed to shed light on how this knowledge can be used to improve the effects of digital SC programs for cancer survivors.

Trial Registration

Netherlands Trial register NTR6011/NL5434; https://onderzoekmetmensen.nl/nl/trial/22832

Related collections

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Author and article information

Contributors

Rosa Andree:

ORCID: https://orcid.org/0000-0002-2384-6944

Trimbos InstituteNetherlands Institute of Mental Health and AddictionDa Costakade 45Utrecht, 3521 VSNetherlands31 30 29 59 267randree@trimbos.nl

Journal

Journal ID (nlm-ta): JMIR Cancer

Journal ID (iso-abbrev): JMIR Cancer

Journal ID (publisher-id): JC

Title: JMIR Cancer

Publisher: JMIR Publications (Toronto, Canada )

ISSN (Electronic): 2369-1999

Publication date Collection: 2024

Publication date (Electronic): 20 June 2024

Volume: 10

Electronic Location Identifier: e46303

Affiliations

[1 ] Trimbos Institute Netherlands Institute of Mental Health and Addiction Utrecht Netherlands

[2 ] PsyQ Parnassia Groep The Hague Netherlands

[3 ] Siza Center for Long-term Care for People with Disabilities Arnhem Netherlands

[4 ] Academy Het Dorp Research & Advisory on Technology in Long-term Care Arnhem Netherlands

[5 ] Tranzo Tilburg School of Social and Behavioral Sciences Tilburg University Tilburg Netherlands

[6 ] Erasmus School of Social and Behavioural Sciences Erasmus University Rotterdam Rotterdam Netherlands

[7 ] Department of Research Arkin Mental Health Care Amsterdam Netherlands

Author notes

Corresponding Author: Rosa Andree randree@ 123456trimbos.nl

Author information

Rosa Andree https://orcid.org/0000-0002-2384-6944

Ajla Mujcic https://orcid.org/0000-0002-3134-5058

Wouter den Hollander https://orcid.org/0000-0002-0061-9511

Margriet van Laar https://orcid.org/0000-0003-3977-126X

Brigitte Boon https://orcid.org/0000-0001-9340-9304

Rutger Engels https://orcid.org/0000-0003-1944-9126

Matthijs Blankers https://orcid.org/0000-0002-8821-3312

Article

Publisher ID: v10i1e46303

DOI: 10.2196/46303

PMC ID: 11229662

PubMed ID: 38901028

SO-VID: 92fd7b29-ba0d-4b9b-849b-717435582be0

Copyright © ©Rosa Andree, Ajla Mujcic, Wouter den Hollander, Margriet van Laar, Brigitte Boon, Rutger Engels, Matthijs Blankers. Originally published in JMIR Cancer (https://cancer.jmir.org), 20.06.2024.

License:

This is an open-access article distributed under the terms of the Creative Commons Attribution License ( https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Cancer, is properly cited. The complete bibliographic information, a link to the original publication on https://cancer.jmir.org/, as well as this copyright and license information must be included.

History

Date received : 7 February 2023

Date revision requested : 3 October 2023

Date revision received : 26 January 2024

Date accepted : 25 February 2024

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