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. 2005 Apr 17;5:36. doi: 10.1186/1471-2458-5-36

Table 2.

Multivariate mixed effects model to assess characteristics associated with glycemic control. Project Dulce, 2000–2002 (N = 555)

Estimate p value Translation*
Baseline A1C 0.06050 <0.0001
Month (0 – 24) <0.0001
Insurance 0.003
 Uninsured 0.02198 0.06 5.2% increase in A1C 1
 County Medical Services (MIA) -0.01300 0.20
 Insured (ref) - -
Diabetes duration <0.0001
 > 10 years 0.06169 <0.0001 15.3% increase in A1C
 6 – 10 years 0.03555 0.008 8.5% increase in A1C
 1 – 5.9 years 0.03253 0.003 7.8% increase in A1C
 < 1 year (ref) - -
Medicine <0.0001
 Insulin alone or insulin + oral agents 0.08768 <0.0001 22.4% increase in A1C
 > 1 oral agent (no insulin) 0.04930 <0.0001 12.0% increase in A1C
 No medicine or 1 oral agent (ref) - -
Total cholesterol (0.65 mmol/l (25 mg/dl) interval) 0.01115 <0.001 2.6% increase in A1C
Age * month <0.001

* Formula for calculating change in A1C = 10(estimate) - 1

110(0.02198) - 1 = 0.052