Table 5 Comparison of serum 25(OH)D levels between seasons in the same age group (ng/ml)
Age group | Summer-Autumn | Winter-Spring | P value | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
N | P2.5 | P25 | P50 | P75 | P97.5 | N | P2.5 | P25 | P50 | P75 | P97.5 | ||
< 1 year | 172 | 39.86 | 71.18 | 90.40 | 114.00 | 151.43 | 135 | 24.42 | 58.40 | 80.50 | 95.50 | 144.20 | 0.002 |
1 ~ 2 years | 268 | 34.70 | 54.55 | 68.90 | 87.20 | 134.38 | 278 | 30.65 | 54.38 | 67.40 | 87.03 | 131.05 | 0.523 |
3 ~ 5 years | 169 | 22.05 | 32.35 | 48.30 | 66.05 | 103.75 | 196 | 16.80 | 28.13 | 37.90 | 52.18 | 165.68 | 0.000 |
6 ~ 14 years | 264 | 15.36 | 21.85 | 27.5 | 55.90 | 85.53 | 277 | 15.46 | 22.00 | 27.60 | 56.10 | 85.54 | 0.000 |