International Journal of Endocrinology / 2014 / Article / Tab 1

Research Article

Determinants of Vitamin D Levels in Italian Children and Adolescents: A Longitudinal Evaluation of Cholecalciferol Supplementation versus the Improvement of Factors Influencing 25(OH)D Status

Table 1

Main data of the cross-sectional evaluation of Italian children and adolescents.

Number of subjects (female : male)679 (353 : 326)
Age, yrs. (median, range)8.7 (2.1–17.9)
Height (SDS)−0.1 ± 1.5
BMI (SDS)0.5 ± 1.1
Prepubertal/pubertal ratio4532 : 226
Serum 25(OH)D status
 sufficiency (%)11.3
 insufficiency (%)30.0
 deficiency (%)38.2
 severe deficiency (%)20.5
Serum 25(OH)D level (ng/mL)19.08 ± 8.44
 children20.26 ± 8.43
 adolescents11.74 ± 5.78
 normal weight25.66 ± 7.32
 overweight17.13 ± 7.87
 obese12.02 ± 5.67
Dietary intake of vitamin D, IU/day179.3 ± 43.9
Serum 25(OH)D (ng/mL)
 ≤2 hrs/day in outdoor activity14.04 ± 7.49
 >2 hrs/day in outdoor activity23.76 ± 7.58
 normal cow’s milk consumption/day24.41 ± 7.82
 reduced cow’s milk consumption/day17.60 ± 8.74
Parathyroid hormone (pg/mL)51.13 ± 36.46

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