Table 3.

Neurological status of patients with xeroderma pigmentosum

Complementation group	No neurological involvement	Xeroderma pigmentosum neurological involvementa			Non-XP neurological involvement	Total
		Mild	Moderate	Severe
A	2	2	1	3	1	9
B	0	0	0	0	1	1
C	36	0	0	0	2	38
D	5	4	2	5	1	17
E	2	0	0	0	0	2
G	1	0	0	0	1	2
XP-variant	5	0	0	0	0	5
Unknown	4	0	0	0	1	5
Total	55	6	3	8	7	79

a Modified from Nishigori et al. (1994) (Fig. 2).

XP = xeroderma pigmentosum.