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Table 3 Clinical and laboratory features of individuals classified according to HbA1c levels
| Classification according to HbA1c | |||
|---|---|---|---|
| Normal (HbA1c < 5.7%) | Prediabetes (HbA1c 5.7-6.4%) | Diabetes (HbA1c ≥ 6.5%) | |
| n (%) | 168 | 279 | 67 |
| Age (years) | 57.4 (55.6-59.2) | 59.8 (58.6-61.0) | 61.5 (59.3-63.7) |
| Weight (kg) | 73.4 (71.1-75.7) | 71.7 (70.1-73.4) | 74.6 (70.3-78.8) |
| BMI (kg/m 2 ) | 26.1 (25.0-27.1) | 26.0 (25.4-26.7) | 27.6 (26.1-29.0) |
| Abdominal circumference (cm) | 96.8 (94.9-98.6) | 96.0 (94.4-97.6) | 99.9 (96.5-103.3) |
| SBP (mmHg) | 135.4 (131.8-139.0) | 138.0 (135.2-140.7) | 137.0 (130.7-143.3) |
| DBP (mmHg) | 81.2 (79.0-83.5) | 79.8 (77.9-81.6) | 79.4 (75.3-83.5) |
| FPG (mg/dL) | 97.0 (95.1-98.8) | 100.6 (99.2-102.0)* | 115.9 (110.3-121.4)** |
| HOMA2B | 68.6 (63.1-74.0) | 72.1 (67.6-76.7) | 75.5 (62.7-88.2) |
| HOMA2-IR | 0.82 (0.70-0.94) | 0.99 (0.88-1.09) | 1.43 (1.13-1.74)** |
| HbA1c (%) | 5.31 (5.27-5.35) | 5.99 (5.97-6.02)* | 6.85 (6.72-6.98)** |
| HbA1c (mmol/mol) | 34.4 (34.0-34.8) | 41.8 (41.6-42.2)* | 51.3 (49.9-52.7)** |
| LDL (mg/dL) | 100.6 (95.5-105.8) | 106.5 (102.0-111.0) | 101.0 (90.4-111.5) |
| HDL (mg/dL) | 40.9 (38.8-42.9) | 41.5 (40.1-42.9) | 40.3 (36.8-43.8) |
| Triglycerides (mg/dL) | 138.8 (125.8-151.8) | 136.9 (128.1-145.8) | 148.8 (127.1-170.4) |
