Addressing the impact of urban exposure on the incidence of type 2 diabetes mellitus: The Peru MIGRANT Study

Andrea Ruiz-Alejos, Rodrigo M. Carrillo-Larco, J. Jaime Miranda, Cheryl A.M. Anderson, Robert H Gilman, Liam Smeeth, Antonio Bernabé-Ortiz

Research output: Contribution to journalArticle

Abstract

The aim of this study was to estimate the incidence of T2DM in three population groups: rural, rural-to-urban migrants and urban dwellers. Data from the Peru MIGRANT Study was analysed. The baseline assessment was conducted in 2007-2008 using a single-stage random sample and further follow-up was undertaken in 2015-16. T2DM was defined based on fasting glucose and self-reported diagnosis. Poisson regression models and robust variance to account for cluster effects were used for reporting risk ratios (RR) and 95%CI. At baseline, T2DM prevalence was 8% in urban, 3.6% in rural-to-urban migrants and 1.5% in rural dwellers. After 7.7 (SD: 1.1) years, 6,076 person-years of follow-up, 61 new cases were identified. The incidence rates in the urban, migrant and rural groups were 1.6, 0.9 and 0.5 per 100 person-years, respectively. Relative to rural dwellers, a 4.3-fold higher risk (95%CI: 1.6-11.9) for developing T2DM was found in urban dwellers and 2.7-fold higher (95%CI: 1.1-6.8) in migrants with ≥30 years of urban exposure. Migration and urban exposure were found as significant risk factors for developing T2DM. Within-country migration is a sociodemographic phenomenon occurring worldwide; thus, it is necessary to disentangle the effect of urban exposure on non-healthy habits and T2DM development.

Original languageEnglish (US)
Article number5512
JournalScientific Reports
Volume8
Issue number1
DOIs
StatePublished - Dec 1 2018

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Peru
Type 2 Diabetes Mellitus
Incidence
Population Groups
Habits
Fasting
Odds Ratio
Glucose

ASJC Scopus subject areas

  • General

Cite this

Ruiz-Alejos, A., Carrillo-Larco, R. M., Miranda, J. J., Anderson, C. A. M., Gilman, R. H., Smeeth, L., & Bernabé-Ortiz, A. (2018). Addressing the impact of urban exposure on the incidence of type 2 diabetes mellitus: The Peru MIGRANT Study. Scientific Reports, 8(1), [5512]. https://doi.org/10.1038/s41598-018-23812-6

Addressing the impact of urban exposure on the incidence of type 2 diabetes mellitus : The Peru MIGRANT Study. / Ruiz-Alejos, Andrea; Carrillo-Larco, Rodrigo M.; Miranda, J. Jaime; Anderson, Cheryl A.M.; Gilman, Robert H; Smeeth, Liam; Bernabé-Ortiz, Antonio.

In: Scientific Reports, Vol. 8, No. 1, 5512, 01.12.2018.

Research output: Contribution to journalArticle

Ruiz-Alejos, A, Carrillo-Larco, RM, Miranda, JJ, Anderson, CAM, Gilman, RH, Smeeth, L & Bernabé-Ortiz, A 2018, 'Addressing the impact of urban exposure on the incidence of type 2 diabetes mellitus: The Peru MIGRANT Study', Scientific Reports, vol. 8, no. 1, 5512. https://doi.org/10.1038/s41598-018-23812-6
Ruiz-Alejos, Andrea ; Carrillo-Larco, Rodrigo M. ; Miranda, J. Jaime ; Anderson, Cheryl A.M. ; Gilman, Robert H ; Smeeth, Liam ; Bernabé-Ortiz, Antonio. / Addressing the impact of urban exposure on the incidence of type 2 diabetes mellitus : The Peru MIGRANT Study. In: Scientific Reports. 2018 ; Vol. 8, No. 1.
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