Table 3.
The distribution of relevant variables with different levels of serum 25(OH)D (N = 13997).
| Variables | Distribution of Serum 25(OH)D | p Value | ||
|---|---|---|---|---|
| Sufficiency (n = 10,739) | Insufficiency (n = 2358) | Deficiency (n = 900) | ||
| N (%) | ||||
| Gender a | ||||
| Boys | 5874 (75.9) | 1364 (17.6) | 501 (6.5) | 0.02 |
| Girls | 4865 (77.7) | 994 (15.9) | 399 (6.4) | |
| Season a | ||||
| Spring | 3004 (76.6) | 638 (16.3) | 277 (7.1) | <0.01 |
| Summer | 3864 (78.6) | 796 (16.2) | 254 (5.2) | |
| Autumn | 1964 (80.2) | 371 (15.1) | 116 (4.7) | |
| Winter | 1907 (70.3) | 553 (20.4) | 253 (9.3) | |
| Visiting Type a | ||||
| Health Examination | 7005 (82.4) | 1170 (13.8) | 324 (3.8) | <0.01 |
| Clinical Visiting | 3734 (67.9) | 1188 (21.6) | 576 (10.5) | |
| Mean ± SD | ||||
| Age, years b | 3 ± 4 | 3 ± 3 | 1 ± 1 | <0.01 |
| 25(OH)D, ng/mL b | 44 ± 9 | 26 ± 3 | 1 ± 4 | <0.01 |
a Values were compared using Chi Square(χ2) test for the categorical variables; b Values were compared using analysis of variance (ANOVA) for the continuous variables.