Type 2 diabetes: identifying high risk Asian American subgroups in a clinical population

Diabetes Res Clin Pract. 2011 Aug;93(2):248-254. doi: 10.1016/j.diabres.2011.05.025. Epub 2011 Jun 12.

Abstract

Aims: We compared the prevalence and treatment of type 2 diabetes across Asian American subgroups (Asian Indian, Chinese, Filipino, Japanese, Korean, Vietnamese) and Non-Hispanic Whites (NHWs) in a Northern California healthcare system.

Methods: A three-year, cross-sectional sample of patient electronic health records was accessed to compare diabetes prevalence in 21,816 Asian and 73,728 NHWs aged 35+ years. Diabetes was classified through ICD-9 codes, abnormal laboratory values, or use of oral anti-diabetic medication. Multivariate adjusted prevalence rates for each Asian subgroup, and adjusted odds ratios (OR) relative to NHWs, were compared.

Results: Age-adjusted prevalence ranged from 5.8% to 18.2% (women) and 8.1 to 25.3% (men). Age-adjusted ORs of Asian subgroups ranged 1.11-3.94 (women) and 1.14-4.56 (men). The odds of diabetes were significantly higher in Asian Indians (women OR 3.44, men OR 3.54) and Filipinos (women OR 3.94, men OR 4.56), compared to NHWs. Results for Asian Indians and Filipinos were similar with age-and-BMI adjustment. Treatment rates across subgroups were 59.7-82.0% (women) and 62.9-79.4% (men).

Conclusions: Heterogeneity exists in the prevalence of diabetes across Asian subgroups, independent of obesity prevalence. Asian Indian and Filipino subgroups had particularly high prevalence of diabetes when compared to NHWs. Future studies should explore these clinically important differences among Asian subgroups.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Adult
  • Age Distribution
  • Aged
  • Aged, 80 and over
  • Asian Americans / ethnology*
  • Asian Continental Ancestry Group / ethnology
  • Diabetes Mellitus, Type 2 / epidemiology*
  • Diabetes Mellitus, Type 2 / ethnology
  • Diabetes Mellitus, Type 2 / therapy
  • European Continental Ancestry Group
  • Female
  • Humans
  • Male
  • Middle Aged
  • Obesity
  • Odds Ratio
  • Prevalence
  • Risk Factors
  • Sex Factors