High rates of parkinsonism in adults with autism

Table 4 Frequency of Parkinsonian signs by current neuroleptic treatment

Motor signs % (N)	Current medication treatment
	Study I		Study II
	Yes (N = 7)	No (N = 12)	Yes (N = 29)	No (N = 8)
Resting tremor	14 (1)	17 (2)	24 (7)	0
Rigidity	43 (3)	25 (3)	24 (7)	0
Bradykinesia	14 (1)	27 (3)^a	48 (14)	38 (3)
Postural instability	0^a	20 (2)^a	17 (5)	25 (2)

^aOne subject who does not currently take neuroleptic medication in study I could not be assessed for bradykinesia (total available N = 11), three subjects currently taking neuroleptic medication could not be assessed for postural instability (N = 4), and three subjects who are not currently taking medication in study I could not be assessed for postural instability (total available N = 9)

ISSN: 1866-1955