Table 1. Characteristics of the two population-based regional surveys: SHIP-TREND (northeast) and KORA F4 (south)*.
| SHIP-TREND | KORA F4 | p-value | |
| N | 1,980 | 2,617 | |
| Female sex (%) | 54.6 | 52.7 | 0.221 |
| Age (years) | 54.0 (11.4) | 55.5 (12.2) | <0.001 |
| Fasting glucose (mmol/l) | 5.6 (0.8) | 5.3 (0.6) | <0.001 |
| 2 h glucose (mmol/l) | 6.7 (2.4) | 6.2 (2.1) | <0.001 |
| Body mass index (kg/m2) | 28.1 (4.8) | 27.4 (4.6) | <0.001 |
| Systolic blood pressure (mmHg) | 126.6 (17.3) | 121.6 (18.3) | <0.001 |
| Diastolic blood pressure (mmHg) | 77.6 (9.8) | 75.4 (9.8) | <0.001 |
| Total cholesterol (mmol/l) | 5.6 (1.1) | 5.6 (1.0) | 0.901 |
| HDL-cholesterol (mmol/l) | 1.5 (0.4) | 1.5 (0.4) | 0.571 |
| LDL-cholesterol (mmol/l) | 3.5 (0.9) | 3.5 (0.9) | 0.105 |
| Triglycerides (mmol/l), median (IQR) | 1.3 (0.9–1.8) | 1.3 (0.9–1.8) | <0.001 |
*Results are means (SD), proportions (%) or median (IQR). P-values are calculated using Wilcoxon-Test for metric and Fisher’s exact test for dichotomous variables.
Abbreviations: SHIP-TREND: Study of Health in Pomerania (2008–2012); KORA F4: Cooperative Health Research in the Region of Augsburg;
The sample was restricted to participants without known diabetes and to participants who were fasting for ≥8 hours.