Table 1.

Patient characteristics stratified by codon 129 genotype

Codon 129 polymorphism	Sex	n	Age at onset		n	Duration of illness (months)
			Median	Range		Median	Range
MM	m	12	53	27–67	10	9	6–21
	f	8	57	50–70	5	13	9–17
	∑	20	55	27–70	15	10	6–21
MV	m	7	61	23–69	5	15	10–24
	f	1	–	48	1	23	–
	∑	8	60	23–69	6	19	10–24

f, female; m, male.