Table 2—

Probability that the next HbA1c changes by >0.10 percentage points: multivariate logistic regression models

Parameter estimateSEWald χ2POdds ratio95% CI
Diet and exercise (n = 6,561; entropy = 6.7%)
 Prior HbA1c−0.5630.029385.50.00010.5690.538–0.602
 Age−0.0140.00238.30.00010.9860.982–0.991
 Male sex0.2060.05315.30.00011.2281.108–1.362
 Months on therapy0.0240.002164.90.00011.0241.020–1.028
Sulfonylurea monotherapy (n = 14,904; entropy = 7.6%)
 Prior HbA1c−0.4760.0141,134.00.00010.6210.604–0.639
 Age−0.0110.00251.20.00010.9890.986–0.992
 Male sex0.0540.0352.40.1251.0550.985–1.130
 Months on therapy0.0180.001292.20.00011.0181.016–1.020
 Medication adherence−0.3720.07822.70.00010.6890.592–0.803
Metformin monotherapy (n = 1,642; entropy = 9.2%)
 Prior HbA1c−0.4580.042117.50.00010.6320.582–0.687
 Age−0.0260.00530.50.00010.9740.965–0.983
 Male sex0.0190.1060.030.8601.0190.827–1.255
 Months on therapy0.0270.00444.00.00011.0271.019–1.035
 Medication adherence−0.8080.20815.00.00010.4460.296–0.671
Sulfonylurea/metformin combination (n = 5,871; entropy = 7.1%)
 Prior HbA1c−0.4970.024446.10.00010.6090.581–0.637
 Age−0.0210.00365.00.00010.9800.975–0.984
 Male sex0.0230.0550.170.6840.9780.877–1.090
 Months on therapy0.0130.00248.50.00011.0131.009–1.017
 Medication adherence−0.6570.13722.90.00010.5180.396–0.679