Migration, urbanisation and mortality: 5-year longitudinal analysis of the PERU MIGRANT study.


Burroughs Pena, MS; Bernabé-Ortiz, A; Carrillo-Larco, RM; Sánchez, JF; Quispe, R; Pillay, TD; Málaga, G; Gilman, RH; Smeeth, L; Miranda, JJ; (2015) Migration, urbanisation and mortality: 5-year longitudinal analysis of the PERU MIGRANT study. Journal of epidemiology and community health, 69 (7). pp. 715-8. ISSN 0143-005X DOI: https://doi.org/10.1136/jech-2015-205657

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Abstract

: To compare all-cause and cause-specific mortality among 3 distinct groups: within-country, rural-to-urban migrants, and rural and urban dwellers in a longitudinal cohort in Peru.<br/> : The PERU MIGRANT Study, a longitudinal cohort study, used an age-stratified and sex-stratified random sample of urban dwellers in a shanty town community in the capital city of Peru, rural dwellers in the Andes, and migrants from the Andes to the shanty town community. Participants underwent a questionnaire and anthropomorphic measurements at a baseline evaluation in 2007-2008 and at a follow-up visit in 2012-2013. Mortality was determined by death certificate or family interview.<br/> : Of the 989 participants evaluated at baseline, 928 (94%) were evaluated at follow-up (mean age 48 years; 53% female). The mean follow-up time was 5.1 years, totalling 4732.8 person-years. In a multivariable survival model, and relative to urban dwellers, migrant participants had lower all cause mortality (HR=0.30; 95% CI 0.12-0.78), and both the migrant (HR=0.07; 95% CI 0.01-0.41) and rural (HR=0.06; 95% CI 0.01-0.62) groups had lower cardiovascular mortality.<br/> : Cardiovascular mortality of migrants remains similar to that of the rural group, suggesting that rural-to-urban migrants do not appear to catch up with urban mortality in spite of having a more urban cardiovascular risk factor profile.<br/>

Item Type: Article
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Non-Communicable Disease Epidemiology
Research Centre: EHR Research Group
PubMed ID: 25987723
Web of Science ID: 356164200018
URI: http://researchonline.lshtm.ac.uk/id/eprint/2172706

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