Association Between Cigarette Smoking Prevalence and Income Level: A Systematic Review and Meta-Analysis.

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Association Between Cigarette Smoking Prevalence and Income Level: A Systematic Review and Meta-Analysis.

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dc.contributor.author Casetta, Brunilda.
dc.contributor.author Videla, Alejandro.
dc.contributor.author Bardach, Ariel.
dc.contributor.author Morello, Paola.
dc.contributor.author Soto, Natalie.
dc.contributor.author Lee, Kelly.
dc.contributor.author Camacho, Paul.
dc.contributor.author et al.
dc.date.accessioned 2019-11-15T17:39:15Z
dc.date.available 2019-11-15T17:39:15Z
dc.date.issued 2017-09
dc.identifier.citation Nicotine Tob Res. 2017 Nov 7;19(12):1401-1407 en_US
dc.identifier.issn 1462-2203
dc.identifier.uri https://riu.austral.edu.ar/handle/123456789/775
dc.description.abstract INTRODUCTION: Previous evidence linked low socioeconomic status with higher smoking prevalence. Our objective was to assess the strength of this association in the world population, updating a previous work. METHODS: Systematic review and meta-analysis of observational studies. Subgroup analyses included continents, WHO regions, country mortality levels, gender, age, risk of bias, and study publication date. Independent reviewers selected studies, assessed potential bias and extracted data. We searched MEDLINE, EMBASE, CENTRAL, SOCINDEX, AFRICAN INDEX MEDICUS, and LILACS, and other sources from 1989 to 2013 reporting direct measurements of income and current cigarette smoking. RESULTS: We retrieved 13,583 articles and included 93 for meta-analysis. Median smoking prevalence was 17.8% (range 3-70%). Lower income was consistently associated with higher smoking prevalence (odds ratio [OR]: 1.45; 95% confidence interval [CI]: 1.35-1.56). This association was statistically significant in the subgroup analysis by WHO regions for the Americas (OR: 1.54; 95% CI: 1.42-1.68), South East Asia (OR: 1.53; 95% CI: 1.10-2.00), Europe (OR: 1.45; 95% CI: 1.29-1.63), and Western Pacific (OR: 1.32; 95% CI: 1.02-1.72), and in studies conducted during 1990s (OR: 1.42; 95% CI: 1.24-1.62) and 2000s (OR: 1.48; 95%CI: 1.30-1.64). Likewise, it was noted in low-mortality countries (OR: 1.48; 95% CI: 1.37-1.60) and for both genders. Prevalence was highest in the lowest income levels compared to the middle (OR: 1.69; 95% CI: 1.49-1.92), followed by the middle level compared to the highest (OR: 1.31; 95% CI: 1.20-1.43). CONCLUSIONS: Our results show that current cigarette smoking was significantly associated with lower income worldwide and across subgroups, suggesting a dose-response relationship. IMPLICATIONS: This unique updated systematic review shows a consistent inverse dose-response relationship between cigarette smoking and income level, present among most geographical areas and country characteristics. Public health measures should take into account this potential inequity and consider special efforts directed to disadvantaged populations. en_US
dc.language.iso en en_US
dc.publisher Oxford University Press en_US
dc.subject smoking en_US
dc.subject geographic area en_US
dc.subject income en_US
dc.subject world health organization en_US
dc.subject Mortality en_US
dc.subject Gender en_US
dc.title Association Between Cigarette Smoking Prevalence and Income Level: A Systematic Review and Meta-Analysis. en_US
dc.type Article en_US


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