Characteristics of the variables in study in relation to T2DM
| Mean±SD | ||||||||
|---|---|---|---|---|---|---|---|---|
| Variable | Total (n=76) | Controls (n=35) | Patients with T2DM (n=41) | Distribution | Test statistic | p Value | Effect sized | Sample size estimate, 80% power |
| Age (years) | 58.9±9.6 | 57.7±10.8 | 59.8±8.6 | Normal | t | 0.375 | 0.2 | 792 |
| BMI (kg/m2) | 30.2±6.8 | 29.1±6.5 | 31.1±7.0 | 3P-Weibull | U | 0.293 | 0.3 | 410 |
| SBP (mm Hg) | 145.6±22.7 | 141±20 | 149.8±24.2 | Normal | t | 0.095 | 0.4 | 200 |
| DBP (mm Hg) | 87.7±10.8 | 87±11 | 88.3±10.9 | Normal | t | 0.598 | 0.1 | 3162 |
| 25(OH)D (ng/mL) | 38.3±17.8 | 41.3±18.6 | 35.7±16.9 | 3P-Weibull | U | 0.139 | 0.3 | 410 |
| Chol (mg/dL) | 191.0±49.8 | 195.1±49.0 | 187.6±50.8 | Normal | t | 0.459 | 0.2 | 792 |
25(OH)D, vitamin D; BMI, body mass index; Chol, cholesterol; DBP, diastolic blood pressure; SBP, systolic blood pressure; t, independent t-test; T2DM, type 2 diabetes mellitus; U, Mann-Whitney U-test.