Predictors of overweight/obesity in a Brazilian cohort after 13 years of follow-up

摘要

BackgroundObesity is a chronic complex disease with an increasing prevalence around the world. Prospective studies in adult cohorts are needed to provide information about predictors of new-onset overweight/obesity on population-based levels. The aim of this study was to identify factors associated with the risk of an adult individual become overweight/obese after 13?years of follow-up. MethodsSecond phase of an observational population-based prospective cohort study in a small town in the Midwest region of Brazil. A representative sample of the adult population (≥18?years) was assessed in 2002 (phase 1). Anthropometric, sociodemographic, dietary intake and lifestyle data were collected. After 13?years of follow-up (2015), the same variables were re-evaluated (phase 2). New-onset overweight/obesity was the outcome variable. ResultsA total of 685 subjects were included with a mean age in phase 1 of 42.7?±?13.8?years and 56.1?±?13.8?years in phase 2, the mean follow-up time was 13.2?years and female sex counted for 66.3% of the sample. Total weight gain was 5.9?±?10.2 Kg, body mass index increased 2.6?±?3.8 Kg/m2 and waist circumference (WC) values increased 8.0?±?10.5?cm. The prevalence of overweight/obesity went from 49.1% in phase 1 to 69.8% in phase 2 ( p ConclusionsWe identified in thirteen years of follow-up that older ages, a moderate fat consumption compared to low consumption, no alcohol consumption and smoking habit were related to a decreased risk of new-onset overweight/obesity. Obesity prevention actions must focus on subjects at younger ages and include policies to reduce alcohol consumption.