Table 2 Baseline characteristics divided into four groups of vitamin D levels
Baseline characteristics | S-25(OH)D3; < 25 nmol/L Mean (SD) | S-25(OH)D3; 25–50 nmol/L Mean (SD) | S-25(OH)D3; 50–75 nmol/L Mean (SD) | S-25(OH)D3; ≥ 75 nmol/L Mean (SD) | p-value |
|---|---|---|---|---|---|
Number of men, n (%) | 46 (15%) | 133 (44%) | 96 (32%) | 25 (8%) | - |
Age in years | 36 (7) | 35 (7) | 34 (7) | 34 (7) | 0.577 |
BMI | 27.9 (6.6) | 26.1 (4.0) | 25.9 (3.7) | 26.4 (4.4) | 0.353 |
Smokers, n (%) | 15 (40%) | 28 (24%) | 20 (22%) | 3 (13%) | 0.383 |
25(OH)D3 (nmol/L) | 18 (5) | 37 (7) | 60 (7) | 86 (9) | - |
1,25(OH)2D3 (pmol/L) | 61 (23) | 74 (24) | 100 (30) | 120 (35) | < 0.001 |
PTH (pmol/L) | 5.3 (1.6) | 4.6 (1.4) | 4.4 (1.4) | 4.6 (1.2) | 0.020 |
Hemoglobin (mmol/L) | 9.4 (0.6) | 9.3 (0.5) | 9.2 (0.6) | 9.3 (0.6) | 0.051 |
Thrombocytes (109/L) | 230 (46) | 225 (42) | 230 (45) | 233 (44) | 0.720 |
Leucocytes (109/L) | 7.0 (2.5) | 6.0 (1.5) | 6.0 (1.7) | 5.5 (1.5) | 0.007 |
Neutrophils (109/L) | 3.8 (2.0) | 3.2 (1.2) | 3.3 (1.3) | 2.9 (0.9) | 0.068 |
Basophils (109/L) | 0.034 (0.019) | 0.033 (0.022) | 0.030 (0.017) | 0.034 (0.024) | 0.670 |
Eosinophils (109/L) | 0.25 (0.16) | 0.22 (0.13) | 0.20 (0.14) | 0.17 (0.11) | 0.026 |
Monocytes (109/L) | 0.51 (0.18) | 0.47 (0.15) | 0.44 (0.16) | 0.44 (0.13) | 0.063 |
Lymphocytes (109/L) | 2.4 (0.8) | 2.1 (0.6) | 2.0 (0.6) | 2.0 (0.6) | 0.048 |
CRP (mg/L) | 2.0 (2.8) | 1.7 (3.5) | 1.2 (2.5) | 1.2 (4.0) | 0.037 |
Ferritin (ug/L) | 180 (107) | 171 (107) | 176 (93) | 180 (119) | 0.878 |
Orosomucoid (g/L) | 0.82 (0.18) | 0.77 (0.17) | 0.76 (0.16) | 0.70 (0.18) | 0.015 |