Table 23.1
Prevalence of spontaneous bucco-linguo-masticatory (BLM) dyskinesias. Kane and Smith (1982) reviewed 19 studies of 11,000 patients. Mean prevalence 5% (± 9)
ReferenceNumber of patientsPercentage with BLM dyskinesia

Degwitz (1967[a])

912

1.5

Heinrich et al. (1968)

201

3

Hippius and Lang (1970)

137

14

Brandon et al. (1971)

285

19

Crane (1973)

196

0.5

Delwaide and Desseilles (1977)

240

36.7

Klawans and Barr (1982)

423

6.8

ReferenceNumber of patientsPercentage with BLM dyskinesia

Degwitz (1967[a])

912

1.5

Heinrich et al. (1968)

201

3

Hippius and Lang (1970)

137

14

Brandon et al. (1971)

285

19

Crane (1973)

196

0.5

Delwaide and Desseilles (1977)

240

36.7

Klawans and Barr (1982)

423

6.8

Reproduced with permission from Jenner P, Marsden CD. Neuroleptics and tardive dyskinesia. In: Neuroleptics: Neurochemical, Behavioural and Clinical Perspectives. Eds. Coyle JT, Enna SJ, Raven Press, 1983; 225. © Lippincott Williams & Wilkins.

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