Baseline characteristics of Swiss Diabetes Registry participants, stratified by diabetes type (n=604)
| Characteristics | n | DM1 | n | DM2 | P-diff* |
| Participants, % | 239 | 39.6 | 365 | 60.4 | – |
| Females, % | 87 | 36.4 | 105 | 28.8 | 0.05 |
| Age, years | 239 | 39.9 (28.3–53.4) | 365 | 62.1 (54.7–68.8) | <0.0001 |
| Age at diagnosis, years | 238 | 18.0 (12.0–35.0) | 362 | 48.0 (42.0–56.0) | <0.0001 |
| Years since diagnosis, years | 238 | 15.0 (7.0–24.0) | 362 | 12.0 (6.0–18.0) | 0.0003 |
| Higher education, %† | 105‡ | 44.1 | 99§ | 27.3 | <0.0001 |
| Migration background, % | 43‡ | 18.1 | 123§ | 33.9 | <0.0001 |
| BMI, kg/m2 | 239 | 24.6 (22.2–27.0) | 365 | 32.1 (28.4–36.5) | <0.0001 |
| BMI≥25 kg/m2, % | 109 | 45.6 | 341 | 93.4 | <0.0001 |
| Waist circumference, cm | 233 | 91.0 (83.0–98.0) | 346 | 110.0 (101.0–122.0) | <0.0001 |
| Systolic BP, mm Hg | 236 | 128.0 (120.0–137.5) | 363 | 138.0 (127.0–149.5) | <0.0001 |
| Diastolic BP, mm Hg | 236 | 76.0 (71.5–82.8) | 363 | 77.5 (72.0–83.5) | 0.32 |
| Current smokers, % | 49‡ | 20.6 | 71§ | 19.6 | 0.76 |
| HbA1c, % | 239 | 7.4 (6.8–8.0) | 365 | 7.1 (6.6–7.9) | 0.01 |
| HbA1c, mmol/mol | 239 | 57.4 (50.8–63.9) | 365 | 54.1 (48.6–62.8) | 0.01 |
| Triglycerides, mmol/L | 237 | 0.9 (0.6–1.3) | 363 | 1.9 (1.2–2.8) | <0.0001 |
| Total cholesterol, mmol/L | 238 | 4.5 (4.0–5.3) | 363 | 4.1 (3.6–4.9) | <0.0001 |
| HDL-cholesterol, mmol/L | 238 | 1.6 (1.3–2.0) | 363 | 1.1 (1.0–1.3) | <0.0001 |
| LDL-cholesterol, mmol/L | 238 | 2.6 (2.2–3.1) | 363 | 2.4 (1.9–2.9) | <0.0001 |
Data are median (IQR), or frequency (%).
*Two-sided Wilcoxon rank-sum test for continuous and χ2 test for categorical variables.
†College or university degree.
‡ Information missing in one participant.
§Information missing in two participants.
BMI, body mass index; BP, blood pressure; DM1, diabetes mellitus type 1; DM2, diabetes mellitus type 2; HbA1c, glycated hemoglobin A1c; HDL, high-density lipoprotein; LDL, low-density lipoprotein.