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Public Health Article

Smoking cessation interventions for adults aged 50 or older: A systematic review and meta-analysis



Review Quality Rating: 8 (strong)

Citation: Chen D, & Wu L. (2015). Smoking cessation interventions for adults aged 50 or older: A systematic review and meta-analysis. Drug and Alcohol Dependence, 154, 14-24.

Evidence Summary PubMed LinkOut Plain-language summary

Abstract

BACKGROUND: The older population size has increased substantially, and a considerable proportion of older adults are cigarette smokers. Quitting smoking is associated with reduced health risk. This review is among the first to quantitatively assess the relative efficacy of types of cessation interventions for smokers aged >50 years.
METHODS: We conducted searches of the Cochrane Library, Embase, MEDLINE, and PsycINFO to identify smoking cessation studies on adults aged >50 years. Twenty-nine randomized clinical trials met the inclusion criteria. Three main types of interventions were identified. We analyzed relative cessation rates or Risk Ratios (RRs) between the type of intervention groups and the control group by fixed- and random-effects meta-analyses at the study level. We conducted a weighted least squares meta-regression of cessation rates on trial and sample characteristics to determine sources of outcome heterogeneity.
RESULTS: Fixed-effects analysis showed significant treatment effects for pharmacological (RR. =. 3.18, 95% CI: 1.89-5.36), non-pharmacological (RR. =. 1.80, 95% CI: 1.67-1.94), and multimodal interventions (RR. =. 1.61, 95% CI: 1.41-1.84) compared with control group. Estimations based on meta-regression suggested that pharmacological intervention (mean point prevalence abstinence rate (PPA). =. 26.10%, CI: 15.20-37.00) resembled non-pharmacological (27.97%, CI: 24.00-31.94), and multimodal interventions (36.64%, CI: 31.66-41.62); and non-pharmacological and multimodal interventions had higher PPAs than the control group (18.80%, CI: 14.48-23.12), after adjusting for a number of trial and sample characteristics.
CONCLUSIONS: A small number of smoking cessation studies examined smokers aged >50 years. Additional research is recommended to determine smoking cessation efficacy for diverse older population groups (e.g., ethnic minorities).


Keywords

Addiction/Substance Use, Adults (20-59 years), Behaviour Modification (e.g., provision of item/tool, incentives, goal setting), Meta-analysis, Primary health care provider office (e.g., Public health nurse, dietitian, social worker), Seniors (60+ years), Smoking Cessation/Tobacco Use

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