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

IF 3.3 Q2 ONCOLOGY JMIR Cancer Pub Date : 2024-06-20 DOI:10.2196/46303

Rosa Andree, Ajla Mujcic, Wouter den Hollander, Margriet van Laar, Brigitte Boon, Rutger Engels, Matthijs Blankers

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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.

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针对癌症幸存者的数字戒烟干预：与随机对照试验同时进行的参与和结果的预测因素和调节因素分析。

背景：最近的研究表明，针对癌症幸存者的数字化戒烟（SC）干预措施具有积极的临床效果，尽管这种效果很小。然而，有关参与者特征、干预参与度和结果之间关联的研究却很有限：本研究旨在探索MyCourse-Quit Smoking（荷兰语："MijnKoers-Stoppen met Roken"）参与度和结果的预测因素和调节因素：对随机对照试验的数据进行了二次分析。方法：我们对随机对照试验的数据进行了二次分析，以随访 6 个月时过去 7 天内吸烟的数量为主要结果指标。我们使用稳健线性（混合）模型分析了参与者特征（11 个变量）、干预参与度（3 个变量）和结果之间的交互作用：本研究共纳入 165 名参与者。女性参与者参与干预的频率低于男性参与者（B=-11.12；P=.004）。基线时酒精使用障碍鉴定测试得分越高，登录次数越多（B=1.10；P=.004）：总体而言，除了性别、酗酒问题和尼古丁依赖外，在参与者特征、参与度和结果之间发现的关联数量有限。未来的研究需要阐明如何利用这些知识来提高针对癌症幸存者的数字SC项目的效果：荷兰试验登记号：NTR6011/NL5434；https://onderzoekmetmensen.nl/nl/trial/22832。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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