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Table 6 The relationship between weather change and 25(OH)D levels in a population from South China

From: Determination of serum 25-hydroxyvitamin D status among population in southern China by a high accuracy LC-MS/MS method traced to reference measurement procedure

25(OH)D(ng/mL) Spring Summer Autumn Winter
March April May June July August September October November December January February
Male 34.43 ± 11.10 36.08 ± 12.27 39.73 ± 12.28 36.94 ± 12.98 37.12 ± 9.81 34.89 ± 9.50 34.72 ± 11.12 34.80 ± 10.92 29.10 ± 14.16 30.74 ± 10.06 31.54 ± 11.79 30.81 ± 10.91
Female 29.85 ± 10.80 30.81 ± 11.98 31.35 ± 12.39 29.97 ± 11.91 34.74 ± 10.67 33.51 ± 10.91 31.67 ± 10.81 31.57 ± 11.13 29.36 ± 9.79 27.43 ± 10.04 27.46 ± 10.36 26.78 ± 9.25
Weather (days)
 Sunny 11 9.5 8 6 7 7 16 20 12 9 10.5 9
 Overcast 9 8 10 7.5 8 9 5 4 8 12 10 11
 Rain 11 12.5 13 16.5 16 15 9 7 10 10 10.5 8