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Table 2 Multivariate mixed effects model to assess characteristics associated with glycemic control. Project Dulce, 2000–2002 (N = 555)

From: Predictors of glycemic control among patients with Type 2 diabetes: A longitudinal study

 

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

 
  1. * Formula for calculating change in A1C = 10(estimate) - 1
  2. 110(0.02198) - 1 = 0.052