Demographic data in 1999 at 18-year follow-up in groups according to tertiles of mean HbA1c over 18 years
| HbA1c ≤7.8% | HbA1c >7.8 and <8.4% | HbA1c ≥8.4% | |
|---|---|---|---|
| n | 13 | 11 | 15 |
| Sex distribution: men/women | 6/7 | 8/3 | 9/6 |
| Age (range) | 43 (35–53) | 42.5 (36–58) | 43 (38–53) |
| Duration of diabetes (years) | 29.5 ± 3.5 | 28.4 ± 3.6 | 32 ± 5 |
| HbA1c over 18 years (%) | 7.3 ± 0.4 | 8.1 ± 0.1 | 9.1 ± 0.9 |
| HbA1c (%) | 8.0 ± 0.8 | 8.6 ± 1.0 | 9.4 ± 1.5 |
| Systolic blood pressure (mmHg) | 128 ± 12 | 133 ± 21 | 126 ± 11 |
| Diastolic blood pressure (mmHg) | 79 ± 11 | 85 ± 9 | 77 ± 8 |
| BMI (kg/m2) | 22 ± 2 | 23 ± 2 | 23 ± 6 |
| Total cholesterol (mmol/l) | 5.4 ± 0.8 | 5.2 ± 0.5 | 5.4 ± 0.7 |
| LDL cholesterol (mmol/l) | 3.1 ± 0.9 | 3.1 ± 0.6 | 3.2 ± 0.8 |
| HDL cholesterol (mmol/l) | 2.0 ± 0.3 | 1.7 ± 0.3 | 1.6 ± 0.4 |
| Triglycerides (mmol/l) | 0.7 ± 0.2 | 1.0 ± 0.3 | 1.4 ± 1.6 |
| Total cholesterol/HDL cholesterol ratio | 2.8 ± 0.7 | 3.2 ± 0.7 | 3.5 ± 1.0 |
| Microalbuminuria | 0 | 1 | 3 |
| Overt nephropathy | 0 | 0 | 2 |
| Current smokers | 0 | 6 | 6 |
| Patients on antihypertensive treatment | 2 | 2 | 3 |
| Patients on lipid-lowering medication | 0 | 0 | 5 |
Data are means ± 1 SD.