Table I.
Baseline characteristics of study participants
| Parameter | VitD suppl group | Non-suppl group | P-value |
|---|---|---|---|
| N | 25 | 25 | NS |
| Age [years] | 52 ±9 | 51 ±12 | NS |
| Sex (m/f) | 15/10 | 11/14 | NS |
| Smoke (yes/no) | 4/21 | 6/18 | NS |
| Weight [kg] | 89 ±16 | 89 ±13 | NS |
| BMI [kg/m2] | 31.0 ±5.0 | 33.4 ±6.0 | NS |
| Waist circumference [cm] | 107 ±13 | 111 ±10 | NS |
| SBP [mm Hg] | 134 ±14 | 132 ±13 | NS |
| DBP [mm Hg] | 85 ±6 | 85 ±9 | NS |
| TCHOL [mg/dl] | 219 ±36 | 231 ±34 | NS |
| HDL-C [mg/dl] | 48 ±10 | 50 ±9 | NS |
| LDL-C [mg/dl] | 140 ±35 | 147 ±26 | NS |
| TGs [mg/dl] | 150 (56–336) | 146 (84–339) | NS |
| Apo A1 [mg/dl] | 136 ±26 | 143 ±13 | NS |
| Apo B [mg/dl] | 92 ±25 | 107 ±16 | NS |
| Fasting glucose [mg/dl] | 103 ±15 | 97 ±11 | NS |
| Fasting insulin [mg/dl] | 10.5 (5.9–19.7) | 9.2 (2–19.8) | NS |
| HOMA index | 2.5 (0.4–6.6) | 2.6 (1.5–4.6) | NS |
| HbA1c (%) | 6.2 ±0.8 | 6.0 ±0.5 | NS |
| 25(OH)VitD [ng/ml] | 16 (3–35) | 10 (4–40) | NS |
| PTH [pg/ml] | 56 ±27 | 58 ±20 | NS |
| MetS criteria (number of components) | 3.4 ±2.0 | 3.0 ±2.0 | NS |
BMI – body mass index, SBP – systolic blood pressure, DBP – diastolic blood pressure, TCHOL – total cholesterol, HDL-C – high-density lipoprotein cholesterol, LDL-C – low-density lipoprotein cholesterol, TGs – triglycerides, Apo – apolipoprotein, 25(OH)VitD – 25-hydroxy vitamin D, PTH – parathyroid hormone, MetS – metabolic syndrome, HOMA index = fasting insulin × fasting glucose/405. To convert values for triglycerides to mmol/l multiply by 0.01129. To convert values for cholesterol to mmol/l multiply by 0.02586. To convert values for glucose to mmol/l multiply by 0.05551. To convert values for 25(OH)VitD to nmol/l multiply by 2.5.