• Juan Fernando Suárez-Varela Úbeda, Sara Rodríguez-Vázquez, José Antonio Ordóñez Barranco, Gilberto Vega Caldera, Pedro Pablo Pérez Alvárez, and Francisco Buitrago.
• Servicio Andaluz de Salud, Centro de Salud 'Porvenir', Sevilla, Spain.
• Fam Pract. 2019 Oct 8; 36 (5): 627-633.

BackgroundThe efficacy of smoking cessation interventions can be quite diverse in day-to-day clinical practice.ObjectiveTo analyse the effectiveness in smoking cessation of multicomponent interventions carried out in groups or individually in primary care practices.MethodsA quasi-experimental, multicentre study of 12-month follow-up of patients treated in multicomponent smoking cessation interventions was carried out in Urban health care centres in Sevilla, Spain. Two hundred and twenty smoking patients, ≥18 years of age, participated either in a multicomponent intervention group (n = 145; mean age 51.7 years; 53.1% women) or in individual interventions (n = 77; mean age 50.5 years; 61.0% women). The abstinence or relapse status was computed from patient self-reports, confirmed by relatives or companions when possible and supplemented by CO-oxymetry tests in 89 patients.ResultsThe overall percentage of smoking cessation was 36.9% (37.9% with group and 35.1% with individual intervention, P = 0.398). Patients who quit smoking were younger (48.7 versus 52.9 years old, P < 0.01), with fewer years of smoking (32.9 versus 36.8 years, P < 0.05), with higher education (39.0% versus 25.0%, P < 0.05) and had received pharmacological treatment (91.5% versus 67.9%, P < 0.001). In the multivariate analysis, level of education [odds ratio (OR): 1.995; 95% confidence interval (CI): 1.065-3.735, P < 0.01], group intervention (OR: 1.743; 95% CI: 1.006-3.287, P < 0.05) and drug prescription (OR: 2.368; 95% CI: 1.126-4.980, P < 0.05) were significantly associated with smoking cessation.ConclusionsOur study found that multicomponent group and individual interventions in primary care were associated with an overall quit rate of smoking of 36.9% at 12-month follow-up, with higher probability of success among patients with higher education and those who received the group intervention and drug treatment.© The Author(s) 2019. Published by Oxford University Press. All rights reserved.For permissions, please e-mail: journals.permissions@oup.com.

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