Table 5.

Distribution of severity between periods after helmet therapy and at the chronological age of 1 year.

			At the Chronological Age of 1 Year
		Normal	Mild	Moderate	Severe	Very Severe	Total
	Normal	23	2	0	0	0	25
	Mild	0	3	1	0	0	4
After	Moderate	0	1	2	0	0	3
therapy	Severe	0	0	0	0	0	0
	Very severe	0	0	0	0	0	0
	Total	23	6	3	0	0	32

Data are shown as numbers.