Table 1.
Descriptive statistics of individuals with various diabetes durations
| Variable | 0–19 years (n = 7239) | 20–29 years (n = 4667) | 30–39 years (n = 3472) | 40–49 years (n = 2049) | ≥ 50 years (n = 1023) |
|---|---|---|---|---|---|
| Diabetes duration | 11.2 (5.5) | 24.3 (2.9) | 34.0 (2.9) | 43.9 (2.8) | 55.4 (5.0) |
| Male, n (%) | 4143 (57.2) | 2596 (55.6) | 1809 (52.1) | 1057 (51.6) | 524 (51.2) |
| Age, years | 29.3 (6.9) | 39.0 (8.3) | 48.2 (8.1) | 56.8 (7.4) | 65.9 (7.5) |
| Age at diagnosis, years | 18.1 (7.0) | 14.6 (7.7) | 14.2 (7.7) | 12.9 (7.1) | 10.5 (6.6) |
| BMI, kg/m2 | 25.3 (4.0) | 25.5 (3.6) | 25.4 (3.7) | 25.2 (3.5) | 25.3 (3.8) |
| HbA1c | |||||
| mmol/mol | 64 ± 16 | 66 ± 14 | 66 ± 13 | 64 ± 12 | 63 ± 12 |
| % | 8.0 ± 3.6 | 8.2 ± 3.4 | 8.2 ± 3.3 | 8.0 ± 3.3 | 7.9 ± 3.2 |
| LDL cholesterol, mmol/l | 2.7 (0.8) | 2.8 (0.8) | 2.8 (0.8) | 2.8 (0.8) | 2.8 (0.8) |
| HDL cholesterol, mmol/l | 1.5 (0.4) | 1.6 (0.5) | 1.7 (0.5) | 1.7 (0.5) | 1.7 (0.5) |
| Total cholesterol, mmol/l | 4.7 (1.0) | 4.9 (0.9) | 5.1 (0.9) | 5.1 (0.9) | 5.0 (0.9) |
| Triglycerides, mmol/l | 1.2 (1.0) | 1.2 (0.9) | 1.2 (0.8) | 1.1 (0.7) | 1.2 (0.8) |
| Systolic blood pressure, mmHg | 121.6 (12.8) | 127.8 (15.9) | 134.0 (16.9) | 139.9 (17.1) | 143.8 (18.5) |
| Diastolic blood pressure, mmHg | 73.5 (8.6) | 75.3 (8.8) | 74.5 (8.9) | 72.4 (8.7) | 70.9 (9.6) |
| Previous CVD, n (%) | 62 (0.9) | 238 (5.1) | 548 (15.8) | 568 (27.7) | 453 (44.3) |
| Previous kidney disease, n (%) | 348 (4.8) | 609 (13.0) | 749 (21.6) | 633 (30.9) | 459 (44.9) |
| Previous severe retinopathy, n (%) | 105 (1.5) | 475 (10.2) | 492 (14.2) | 357 (17.4) | 173 (16.9) |
| Previous kidney disease and severe retinopathy, n (%) | 26 (0.4) | 158 (3.4) | 169 (4.9) | 142 (6.9) | 98 (9.6) |
| Smoker, n (%) | 896 (13.2) | 633 (14.3) | 486 (14.8) | 241 (12.4) | 72 (7.4) |
| Lipid‐lowering medication, n (%) | 332 (4.8) | 767 (17.2) | 981 (29.7) | 773 (40.0) | 452 (46.6) |
| Albuminuria, n (%) | 589 (8.1) | 1041 (22.3) | 1094 (31.5) | 688 (33.6) | 393 (38.4) |
| Microalbuminuria, n (%) | 455 (7.3) | 637 (15.7) | 597 (19.4) | 370 (20.5) | 205 (22.6) |
| Macroalbuminuria, n (%) | 134 (2.2) | 404 (10.0) | 497 (16.1) | 318 (17.6) | 188 (20.7) |
| Married, n (%) | 1555 (21.6) | 1872 (40.2) | 1831 (53.1) | 1207 (59.7) | 628 (62.9) |
| Divorced, n (%) | 293 (4.1) | 511 (11.0) | 510 (14.8) | 337 (16.7) | 158 (15.8) |
| Widow/widower, n (%) | 5 (0.1) | 16 (0.3) | 55 (1.6) | 90 (4.5) | 97 (9.7) |
| High education level, n (%) | 2199 (30.7) | 1452 (31.3) | 979 (28.4) | 502 (24.9) | 149 (15.0) |
| Income: top quintile, n (%) | 1148 (15.9) | 1152 (24.8) | 829 (24.1) | 412 (20.4) | 125 (12.5) |
Data are presented as means (±sd) unless otherwise indicated.