Table 6: Laboratory biochemical profile.

Item	Cases (Total 250)
	No.	%
Low serum calcium (<9mg/dl)	213	85.2%
Low serum phosphorus (<3mg/dl)	188	75.2%
High serum alkaline phosphatase (>25KU)	205	82%
Low serum active vitamin D 1,25(OH)2D (<15ng/dl)	163	65.2%