Table 1: Baseline demographic and clinical characteristics of the study population.
| Vitamin D deficiency group (n = 200) | Control group (n = 200) | P value | |
| Age (years) | 49.09 ± 8.5 | 49.6 ± 6.8 | 0.695 |
| Gender, male, n% | 127 (63.5) | 141 (70.5) | 0.271 |
| BMI (kg/m2) | 26.3 ± 2.8 | 25.5 ± 3.2 | 0.211 |
| Systolic BP (mmHg) | 126.6 ± 6.9 | 125.7 ± 6.4 | 0.459 |
| Diastolic BP (mmHg) | 71.9 ± 5.2 | 70.4 ± 6.7 | 0.181 |
| Vitamin D (ng/ml) | 7.7 ± 1.5 | 18.3 ± 4.6 | < 0.001 |
BMI: Body mass index; BP: Blood pressure.