Table 6.

Classification of vitamin D status in children with CKD [51]

Sufficiency	> 75 nmol/L (> 30 ng/mL)
Insufficiency	50–75 nmol/L (20–30 ng/mL)
Deficiency	12–50 nmol/L (5–20 ng/mL)
Severe deficiency	< 12 nmol/L (< 5 ng/mL)