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Table 1 A comparison of HbA1c obtained by using Eq. 3 and the weighted method (Eq. 4) and also a comparison of results given by Eq. 2 to those given by Eq. 4

From: Simulation of a computed HbA1c using a weighted average glucose

 

Average glucose/month (mg/dl)

Average glucose for 3 months

Computed average glucose/month (mg/dl)

Computed HbA1c (%)

Computed HbA1c (%)

using Ladyzinski et al. model (Eq. 2)

 

AGM−3

AGM−2

AGM−1

eAG using (Eq. 3)

wAG using (Eq. 4)

eHbA1c using (Eq. 3)

wHbA1c using (Eq. 4)

eHbA1c using (Eq. 2)

wHbA1c using (Eq. 2)

ISSC

180

170

160

170

170

167

7.45

7.36

7.71

7.62

IIC

250

160

100

170

170

148

7.45

6.80

7.71

7.02

IND

100

100

310

170

170

205

7.45

8.49

7.71

8.80

  1. AGM-1, AGM-2, AGM-3 represent the average glucose for the 1st, 2nd and 3rd month preceding the HbA1c test and average glucose for 3 months is calculated as (AGM-1 + AGM-2 + AGM-3)/3
  2. ISSC individual with steady state control, IIC individual with improving control, IND individual newly diagnosed