Cited by 106Race, Genetics, and SocietyGenetic Associations and EpidemiologyForensic and Genetic Research

Strong association of socioeconomic status with genetic ancestry in Latinos: Implications for admixture studies of type 2 diabetes

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Florez, J. C., Price, A. L., Campbell, D., Riba, L., Parra, M. V., Yu, F., Duque, C., Saxena, R. +10 more·2009·Diabetologia

Abstract

Aims/hypothesis Type 2 diabetes is more prevalent in US American minority populations of African or Native American descent than it is in European Americans. However, the proportion of this epidemiological difference that can be ascribed to genetic or environmental factors is unknown. To determine whether genetic ancestry is correlated with diabetes risk in Latinos, we estimated the proportion of European ancestry in case-control samples from Mexico and Colombia in whom socioeconomic status had been carefully ascertained. Methods We genotyped 67 ancestry-informative markers in 499 participants with type 2 diabetes and 197 controls from Medellín (Colombia), as well as in 163 participants with type 2 diabetes and 72 controls from central Mexico. Each participant was assigned a socioeconomic status scale via various measures. Results Although European ancestry was associated with lower diabetes risk in Mexicans (OR [95% CI] 0.06 [0.02-0.21], p = 2.0 x 10(-5)) and Colombians (OR 0.26 [0.08-0.78], p = 0.02), adjustment for socioeconomic status eliminated the association in the Colombian sample (OR 0.64 [0.19-2.12], p = 0.46) and significantly attenuated it in the Mexican sample (OR 0.17 [0.04-0.71], p = 0.02). Adjustment for BMI did not change the results. Conclusions/interpretation The proportion of non-European ancestry is associated with both type 2 diabetes and lower socioeconomic status in admixed Latino populations from North and South America. We conclude that ancestry-directed search for genetic markers associated with type 2 diabetes in Latinos may benefit from information involving social factors, as these factors have a quantitatively important effect on type 2 diabetes risk relative to ancestry effects.

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  • Admixture studies generally find that admixture relates to the trait under investigation above and beyond covariates.

    “These studies generally find that admixture relates to the trait under investigation above and beyond covariates.”

    From Global Ancestry and Cognitive Ability (2019) · cites this paper as [39]

    The Results (page unavailable) report that ancestry remained associated with type 2 diabetes after adjustment for socioeconomic status in the Mexican sample, though the association was attenuated. The association was no longer significant in the Colombian sample. These findings do not establish the broader claim that admixture studies generally find associations beyond covariates. (LLM, conf=0.86)

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  1. [11]Neel JV Diabetes mellitus: a “thrifty” genotype rendered detrimental by “progress”? Am J Hum Genet 1962 14 353 362 13937884 PMC1932342
  2. [14]Knowler WC Williams RC Pettitt DJ Steinberg AG Gm3;5,13,14 and type 2 diabetes mellitus: an association in American Indians with genetic admixture Am J Hum Genet 1988 43 520 526 3177389 PMC1715499

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Authors
Florez, J. C., Price, A. L., Campbell, D., Riba, L., Parra, M. V., Yu, F., Duque, C., Saxena, R., Gallego, N., Tello-Ruiz, M., Franco, L., Rodríguez-Torres, M., Villegas, A., Bedoya, G., Aguilar-Salinas, C. A., Tusié-Luna, M. T., Ruiz-Linares, A., & Reich, D.
Affiliations
  • Harvard University (US)
  • University College London (GB)
  • Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (MX)
  • Universidad de Antioquia (CO)
  • Broad Institute (US)
  • Cold Spring Harbor Laboratory (US)
Corresponding author
  • Florez, J. C.
  • Tusié-Luna, M. T.
Venue
Diabetologia
Published
2009-06-13
Volume
52
Issue
8
Pages
1528-1536
ISSN
  • 0012-186X (ISSN-L)
  • 1432-0428
OpenAlex
W2118711846
Cited by
106
References
33
Citations by year
2026: 3 · 2025: 7 · 2024: 3 · 2023: 1 · 2021: 5 · 2020: 7 · 2019: 10 · 2018: 6 · 2017: 3 · 2016: 9 · 2015: 6 · 2014: 6 · 2013: 8 · 2012: 9
FWCI
6.24
Type
journal article
Language
en
Open access
Locations
  • Diabetologia (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Cold Spring Harbor Laboratory Institutional Repository (Cold Spring Harbor Laboratory) (acceptedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
  • Massachusetts General Hospital
  • Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
  • National Institutes of Health
  • National Institute of Diabetes and Digestive and Kidney Diseases (R21DK073818, DK073818)
  • National Institute of Neurological Disorders and Stroke (NS043538, R01NS043538)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Race, Genetics, and Society
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Forensic and Genetic Research
Keywords
type 2 diabetes, socioeconomic status, genetic ancestry, European ancestry, Latino population, admixture, ancestry informative markers, diabetes risk, Mexican Americans, social determinants of health
MeSH terms
Colombia, Diabetes Mellitus, Type 2, Hispanic or Latino, Humans, Mexico, Socioeconomic Factors, United States, White People, Racial Groups

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