Table 2.

Frequencies of MJD in SCA patients from different Asia populations

	Number of MJD	Number of SCA	Frequency (%)	P	Reference
Present study	100	138	72.5
Chinese mainland	59	120	49.2	<0.001	23
	41	85	48.2	<0.001	24
	26	75	34.7	<0.001	25
	1	8	12.5	<0.001	22
Chinese Taiwan	35	74	47.3	<0.001	26
	26	81	32.1	<0.001	27
Singapore	15	36	41.7	0.001	28
Japan	87	202	43.1	<0.001	9
	12	29	41.4	0.001	29
	91	330	27.6	<0.001	30
	30	113	26.5	<0.001	31
	35	143	24.5	<0.001	32
	28	117	23.9	<0.001	33
	8	46	17.4	<0.001	34
	3	86	3.5	<0.001	35
Thailand	35	182#	19.2	<0.001	36
Korea	4	40	10.0	<0.001	37
	13	237	5.5	<0.001	38
India	5	14	35.7	0.005	39
	15	105	14.3	<0.001	40
	2	39	5.1	<0.001	12
	7	143	4.9	<0.001	10
	1	32	3.1	<0.001	41
	2	77	2.6	<0.001	42
	0	28	0	<0.001	43

^# composed of patients with dominant SCA and sporadic ataxia