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Author Antiporta, D.A.; Smeeth, L.; Gilman, R.H.; Miranda, J.J. url  doi
openurl 
  Title Length of urban residence and obesity among within-country rural-to-urban Andean migrants Type Journal Article
  Year 2016 Publication Public Health Nutrition Abbreviated Journal Public Health Nutr  
  Volume 19 Issue 7 Pages 1270-1278  
  Keywords Adipose Tissue/metabolism; Adolescent; Adult; Aged; Child; Child, Preschool; Cross-Sectional Studies; Female; Humans; Infant; Linear Models; Male; Middle Aged; Multivariate Analysis; Obesity/*epidemiology; Peru/epidemiology; Prevalence; *Residence Characteristics; Risk Factors; *Rural Population; Sensitivity and Specificity; Socioeconomic Factors; Time Factors; Transients and Migrants; *Urban Population; Young Adult; Migration; Nutritional epidemiology; Obesity; Peru; Rural-to-urban; Skinfold  
  Abstract OBJECTIVE: To evaluate the association between length of residence in an urban area and obesity among Peruvian rural-to-urban migrants. DESIGN: Cross-sectional database analysis of the migrant group from the PERU MIGRANT Study (2007). Exposure was length of urban residence, analysed as both a continuous (10-year units) and a categorical variable. Four skinfold site measurements (biceps, triceps, subscapular and suprailiac) were used to calculate body fat percentage and obesity (body fat percentage >25% males, >33% females). We used Poisson generalized linear models to estimate adjusted prevalence ratios and 95 % confidence intervals. Multicollinearity between age and length of urban residence was assessed using conditional numbers and correlation tests. SETTING: A peri-urban shantytown in the south of Lima, Peru. SUBJECTS: Rural-to-urban migrants (n 526) living in Lima. RESULTS: Multivariable analyses showed that for each 10-year unit increase in residence in an urban area, rural-to-urban migrants had, on average, a 12 % (95 % CI 6, 18 %) higher prevalence of obesity. This association was also present when length of urban residence was analysed in categories. Sensitivity analyses, conducted with non-migrant groups, showed no evidence of an association between 10-year age units and obesity in rural (P=0.159) or urban populations (P=0.078). High correlation and a large conditional number between age and length of urban residence were found, suggesting a strong collinearity between both variables. CONCLUSIONS: Longer lengths of urban residence are related to increased obesity in rural-to-urban migrant populations; therefore, interventions to prevent obesity in urban areas may benefit from targeting migrant groups.  
  Address 1CRONICAS Center of Excellence in Chronic Diseases,Universidad Peruana Cayetano Heredia,Av. Armendariz 497,Miraflores,Lima 18,Peru  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1368-9800 ISBN Medium  
  Area Expedition (up) Conference  
  Notes PMID:26365215 Approved no  
  Call Number ref @ user @ Serial 97696  
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