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Table 4 Comparison of serum 25(OH)D levels between different age groups, M (P25 ~ P75)

From: The establishment of serum 25-hydroxyvitamin D reference intervals in children aged 0–14 years in Zigong area, China

Age group

Number of cases

25(OH)D (ng/ml)

 < 6 months

74

81.60 (63.88 ~ 101.50)a

6 ~ 11 months

233

85.40 (66.10 ~ 109.00)a

1 ~ 2 years

546

68.20 (54.50 ~ 87.13)

3 ~ 5 years

365

40.70 (30.50 ~ 59.35)

6 ~ 9 years

315

26.70 (22.30 ~ 41.50)b

10 ~ 14 years

226

23.10 (18.70 ~ 32.63)b

Z value

 

828.836

P value

 

0.000*

  1. aNo statistical difference between groups aged < 6 months and 6 ~ 11 months.
  2. bNo statistical difference between groups aged 6 ~ 9 years and 10 ~ 14 years.
  3. *Statistical difference between age groups overall.
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Journal of Physiological Anthropology

ISSN: 1880-6805

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