Figure 2.
Glycemic control related to duration of diabetes in patients with diabetes, unadjusted, Hawaii, 2006–2009. Good control was indicated by an HbA1c of less than 7% for 3 years, and poor control was indicated by an HbA1c higher than 9% for 3 years. Wide glycemic variability refers to patients who had a reduction in annual mean HbA1c from higher than 9% to less than 7%, followed by an increase to higher than 9%. Some variability refers to patients who did not meet criteria for the other 3 categories. Glycemic control differed significantly by duration of diabetes (P < .001, Pearson χ2 tests).
| Diabetes Duration, y | Level of Glycemic Control |
P Value | |||
|---|---|---|---|---|---|
| Good (n = 166), % | Poor (n = 2,034), % | Wide Variability (n = 76), % | Some Variability (n = 694), % | ||
| ≥10 | 32.5 | 56.7 | 50.0 | 51.6 | <.001 |
| 8–9 | 12.1 | 13.8 | 13.2 | 13.8 | |
| 6–7 | 9.0 | 14.0 | 11.8 | 13.11 | |
| 4–5 | 13.9 | 8.7 | 7.9 | 10.1 | |
| 1–3 | 32.5 | 6.8 | 17.1 | 11.4 | |
