医学
参考值
碱性磷酸酶
维生素D与神经学
内分泌学
置信区间
生理学
内科学
参考范围
生物
生物化学
酶
作者
Yuancheng Huang,E. Eapen,Susan M. Steele,Vijaylaxmi Grey
标识
DOI:10.1016/j.clinbiochem.2011.04.008
摘要
To determine age and gender specific reference intervals for bone markers. Morning blood samples were collected after overnight fast from 356 healthy children (6 to 18 year-old) for the determination of bone marker levels, PTH and vitamin D3. Multiple regression analysis was done to assess the effect of factors that could influence the bone marker levels; the central 95% reference interval and their 90% CI were calculated. After excluding samples when BMI-z —scores were <−2 or >+2, both vitamin D3 and PTH levels were abnormal and from children who used steroids the remainder were partitioned using Tanner stage based chronological age. As expected the reference intervals show a significant variation with age and gender. All the bone marker levels, except total alkaline phosphatase, were significantly higher in puberty with vitamin D3 > 75 nmol/L. Vitamin D status, age and gender are important for establishing reference intervals of bone markers in healthy children.
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