Research Article

Relationship of Hemoglobin A1c with β Cell Function and Insulin Resistance in Newly Diagnosed and Drug Naive Type 2 Diabetes Patients

Table 3

Logistic regression analysis of the association between different A1c groups and impaired β cell function.

CharacteristicsModel 1 Model 2Model 3
OR (95% CI) P OR (95% CI) P OR (95% CI) P

A1c groups
 Group 11 (reference)1 (reference)1 (reference)
 Group 20.80 (0.45–1.40) 0.4271.22 (0.65–2.28) 0.5361.33 (0.70–2.53) 0.377
 Group 31.47 (0.92–2.37) 0.1112.47 (1.42–4.27) 0.0012.79 (1.58–4.94) <0.001
 Group 42.45 (1.35–4.48) 0.0033.69 (1.82–7.48) <0.0014.19 (1.99–8.79) <0.001
 Group 515.36 (9.05–26.07) 0.01422.08 (11.86–41.12) <0.00128.51 (14.53–55.95) <0.001
Female0.38 (0.25–0.59) <0.0010.39 (0.25–0.61) <0.001
Age (years)0.99 (0.97–1.01) 0.3560.99 (0.97–1.02) 0.398
BMI (kg/m2)0.76 (0.70–0.83) <0.0010.77 (0.70–0.84) <0.001
WC (cm)0.99 (0.96–1.02) 0.4050.99 (0.96–1.02) 0.455
Systolic BP0.99 (0.98–1.01) 0.290
Diastolic BP1.01 (0.99–1.03) 0.545
Cholesterol0.96 (0.77–1.19) 0.699
Triglycerides0.86 (0.73–1.02) 0.083
AST1.03 (0.99–1.06) 0.155
ALT0.98 (0.95–1.01) 0.137

Model 1: unadjusted. Model 2: adjusted for age, gender, BMI, and WC. Model 3: adjusted for age, gender, BMI, WC, Systolic BP, Diastolic BP, Cholesterol, Triglycerides, AST, and ALT.