Table 1

Glucose, diabetes, and A1C characteristics among Filipino American, Japanese American, and Native Hawaiian adults without known type 2 diabetes, San Diego and Hawaii, 1995–2000

TotalFilipino (San Diego)Native HawaiianFilipino (Hawaii)Japanese (Hawaii)
n993382210171170
Age (years)54.257.546.153.157.9
BMI (kg/m2)26.925.331.625.825.7
IFG or IGT (%)45.539.645.248.555.9
A1C ≥6.5%8.912.65.28.84.2
Type 2 diabetes (by OGTT) (%)15.522.010.011.711.8
    FPG ≥126 mg/dl (%)6.56.58.64.16.5
    PPG ≥200 mg/dl* (%)9.015.51.47.65.3
Age-adjusted mean A1C (%)
Type 2 diabetes (by OGTT)6.476.646.276.136.29
    FPG ≥126 mg/dl (%)7.128.077.106.116.55
    PPG ≥200 mg/dl* (%)6.006.115.716.205.62
Sensitivity and specificity of A1C ≥6.5% vs. type 2 diabetes
OGTTFPG ≥126 mg/dlPPG ≥200 mg/dl*
Sensitivity (%)40.068.919.1
Specificity (%)96.895.392.1
Positive predictive value (%)69.950.619.3
Negative predictive value (%)89.897.892.0
Area under ROC curve0.680.820.56
  • *PPG ≥200 mg/dl and FPG <126 mg/dl.