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Trends in the association between smoking history and general/central obesity in catalonia, spain (1992-2003)

Alicia García Álvarez, Lluis Serra-Majem, Conxa Castell, Lourdes Ribas-barba, Michelle A. Méndez

Objectives: To examine trends in the relationship between smoking history and both general and central fatness in adults from a Mediterranean setting. Materials and methods: The ENCAT 1992-1993 and 2002-2003 surveys were used; samples consisted of 482 men, 589 women from 1992-1993, and 515 men, 613 women from 2002-2003, aged 25-60 years. Measured anthropometry and self-reported data on smoking habits, diet, lifestyle and SES were collected. General fatness was defined as WHO’s BMI overweight and obesity, and central fatness was defined as WHO’s Increased-Risk-for-metabolic-complications Waist Circumference (IR WC) and Substantially-Increased-Risk WC (SIR WC). Simple logistic regression was used to estimate multivariate-adjusted associations between general/central fatness and smoking history.Results: By 2002-2003, most associations observed in 1992-1993 had been strongly attenuated: only male current-heavy-smoking remained associated with IR/SIR WC (three-fold) and female current-moderate-smokers were 0.57 times less likely to have an IR/SIR WC (p < 0.10).Conclusions: Although causality cannot be established, results suggest a positive association between heavy smoking and central fatness among men, but no association between former smoking and general/central fatness; findings strengthen arguments for promoting smoking cessation to reduce smoking –and obesity- associated morbidity and mortality.

Palabras Clave: Obesity. Tobacco smoking. Body mass index. Waist circumference. Nutrition surveys.

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