Mean HbA1c level by age and treatment among American Indian/Alaska Native people with diabetes (IHS, 1998)
| Age category (years) | P | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 18–39 | 40–49 | 50–59 | 60–69 | ≥70 | ||||||
| Overall | <0.0001 | |||||||||
| n | 1,219 | 1,833 | 2,425 | 2,139 | 1,244 | |||||
| Mean HbA1c (%) | 9.2 | 8.9 | 8.8 | 8.3 | 7.8 | |||||
| Diet | <0.0001 | |||||||||
| n | 164 | 214 | 243 | 250 | 197 | |||||
| Mean HbA1c (%) | 7.3 | 7.1 | 7.0 | 6.8 | 6.4 | |||||
| Oral agent | <0.0001 | |||||||||
| n | 640 | 1,096 | 1,426 | 1,208 | 673 | |||||
| Mean HbA1c (%) | 9.3 | 8.9 | 8.8 | 8.3 | 7.9 | |||||
| Insulin | <0.0001 | |||||||||
| n | 387 | 489 | 723 | 663 | 354 | |||||
| Mean HbA1c (%) | 9.9 | 9.6 | 9.4 | 8.8 | 8.5 | |||||
| Unknown | 0.45 | |||||||||
| n | 28 | 34 | 33 | 18 | 20 | |||||
| Mean HbA1c (%) | 9.3 | 8.5 | 8.7 | 8.4 | 7.1 | |||||