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. 2011 Jul 16;34(8):1843–1847. doi: 10.2337/dc10-2217

Table 3.

Quantification or impact of confounding or effect modification for type 1 diabetic patients of a low vs. a high SD for a given MPG on the HbA1c level next to the HbA1c values calculated with the regression formula for type 1 diabetes

MPG [mg/dL (mmol/L)] HbA1c (%)
Regression formula Confounding
Effect modification
SD 30 mg/dL SD 100 mg/dL SD 30 mg/dL SD 100 mg/dL
140 (7.8) 6.67 6.50 6.90 6.53 6.80
160 (8.9) 7.22 7.02 7.43 6.96 7.41
180 (10) 7.78 7.55 7.95 7.39 8.02
200 (11.1) 8.34 8.08 8.48 7.83 8.62
220 (12.2) 8.89 8.60 9.01 8.26 9.23
240 (13.3) 9.45 9.13 9.53 8.69 9.84