Table 5A.
Distribution of calcidiol (25(OH)D) level within each group according to each geographical region.
| Groups | 25(OH)D | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Me [1Q; 3Q] | <20 ng/mL | 21–29 ng/mL | >30 ng/mL | ||||||
| ng/mL | P-value | n (%) | P-value | n (%) | P | n (%) | P-value | ||
| Moscow region (1) |
JIA, N = 66 |
21.7 [16.9; 30.9] |
0.0004 | 28 (42.4%) |
0.007 | 20 (30.3%) |
0.41 | 18 (27.3%) |
0.01 |
| Healthy, n = 117 |
27.8 [20.4; 40.4] |
27 (23.1%) |
36 (30.8%) |
54 (46.1%) |
|||||
| Stavropol (2) | JIA, n = 37 |
23.3 [15.8; 34.2] |
0.06 | 12 (32.4%) |
0.22 | 12 (32.4%) |
0.46 | 13 (35.1%) |
0.08 |
| Healthy, n = 44 |
30.6 [23.4; 35.9] |
9 (20.5%) |
11 (25.0%) |
24 (54.5%) |
|||||
| Krasnoyarsk (3) | JIA, n = 47 |
27.6 [14.6; 40.3] |
0.96 | 17 (36.2%) |
0.28 | 10 (21.3%) |
0.08 | 20 (42.6%) |
0.52 |
| Healthy, n = 116 |
25.3 [19.5; 33.3] |
32 (27.6%) |
41 (35.3%) | 43 (37.1%) |
|||||
| JIA | P 1-2 | 0.39 | 0.32 | 0.82 | 0.40 | ||||
| P 2-3 | 0.51 | 0.88 | 0.10 | 0.49 | |||||
| P 1-3 | 0.16 | 0.50 | 0.29 | 0.09 | |||||
| Healthy | P 1-2 | 0.09 | 0.43 | 0.46 | 0.16 | ||||
| P 2-3 | 0.07 | 0.36 | 0.21 | 0.05 | |||||
| P 1-3 | 0.67 | 0.72 | 0.47 | 0.34 | |||||
| Criterion | Mann-Whitney U | Pearson's (χ2) | |||||||
The between-group P-value is shown for each region/territory. The between-region differences are reported using either the Mann-Whitney U for serum levels and Pearson's χ2 for the count in each category of calcidiol range.
JIA, juvenile idiopathic arthritis.
P 1-2 – comparison of Moscow region and Stavropol territory.
P 2-3 – comparison of Stavropol and Krasnoyarsk territories.
P 2-3 – comparison of Moscow region and Krasnoyarsk territory. Bold values are statistically significant (P < 0.05).