Table 3.
Sensitivity of A1C 5.7– 6.4%, IFG, and IGT for detecting individuals at increased risk of diabetes by age, sex, race/ethnicity, and BMI categories
| Nondiabetic individuals | At-risk individuals | A1C 5.7– 6.4% sensitivity | IFG sensitivity | IGT sensitivity | |
|---|---|---|---|---|---|
| All | 719 | 385 (53.5) | 23.6 | 69.1 | 59.5 |
| Age categories | |||||
| 44–54 years | 237 | 108 (45.6) | 20.4 | 72.2 | 47.2 |
| 55–64 years | 253 | 146 (57.7) | 27.4 | 67.8 | 65.1 |
| 65–75 years | 229 | 131 (57.2) | 22.1 | 67.9 | 63.4 |
| Sex | |||||
| Men | 314 | 182 (58.0) | 24.7 | 81.9 | 48.3 |
| Women | 405 | 203 (50.1) | 22.7 | 57.6 | 69.5 |
| Race/ethnicity | |||||
| African Americans | 184 | 102 (55.4) | 31.4 | 73.5 | 45.1 |
| Hispanics | 240 | 122 (50.8) | 35.2 | 59.0 | 71.3 |
| Non-Hispanic whites | 295 | 161 (54.6) | 9.9 | 73.9 | 59.6 |
| BMI categories | |||||
| <25 kg/m2 | 183 | 64 (35.0) | 10.9 | 57.8 | 62.5 |
| 25–29.9 kg/m2 | 337 | 186 (55.2) | 19.9 | 72.0 | 58.1 |
| ≥30 kg/m2 | 199 | 135 (67.8) | 34.8 | 70.4 | 60.0 |
Data are n, n (%), or %. Nondiabetic individuals with A1C 5.7–6.4%, IFG, or IGT were considered at increased risk of diabetes.