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NAQC Newsroom: Research

Are Predictors of Making a Quit Attempt the Same as Predictors of 3-month Abstinence From Smoking?

Monday, October 19, 2015  
Posted by: Natalia Gromov
Dimitra Kale, Hazel M. Gilbert, Stephen Sutton
Are Predictors of Making a Quit Attempt the Same as Predictors of 3-month Abstinence From Smoking? Findings From a Sample of Smokers Recruited for a Study of Computer-tailored Smoking Cessation Advice in Primary Care Addiction.
Addiction. Volume 110, Issue 10, pages 1653–1664, October 2015
The aim of the study was to identify predictors of quit attempts and of 3-month abstinence from cigarette smoking using secondary analysis of data gathered for a two-armed randomized controlled trial with 6-month follow-up. A total of 4397 participants who completed the 6-month follow-up. Participants were categorized on self-reported smoking behaviour at 6-month follow-up as non-attempters (n = 2664), attempted quitters (n = 1548) and successful quitters (n = 185). Demographic characteristics, smoking history and nicotine dependence, cognitive and social–environmental factors measured at baseline were examined as potential predictors of quit attempts and 3-month abstinence. Univariate predictors of quit attempts included commitment [odds ratio (OR) = 11.64, 95% confidence interval (CI) = 8.30–16.32], motivation (OR = 2.10, 95% CI = 1.98–2.22) and determination to quit (OR = 1.94, 95% CI = 1.83–2.05). Successful quitting was associated with being married (OR = 1.51, 95% CI = 1.11–2.05), lower social deprivation (OR = 0.47, 95% CI = 0.30–0.74), higher reading level (OR = 1.62, 95% CI = 1.19–2.21) and lower nicotine dependence (OR = 0.42, 95% CI = 0.29–0.62). Health problems related to smoking and previous quit attempts for 3 months or longer predicted both. In the multivariate analysis, the significant predictors of making a quit attempt were; later stage of readiness to quit (OR = 5.38, 95% CI = 3.67–7.89), motivation (OR = 1.48, 95% CI = 1.34–1.62) and determination to quit (OR = 1.16, 95% CI = 1.05–1.29) and health problems related to smoking (OR = 1.44, 95% CI = 1.18–1.75). For 3-month abstinence, the only significant predictor was not having health problems related to smoking (OR = 0.50, 95% CI = 0.29–0.83). While high motivation and determination to quit is necessary to prompt an attempt to quit smoking, demographic factors and level of nicotine dependence are more important for maintaining abstinence.

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