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Abstract
As many patients still require maintenance neuroleptic medication, it is important
to determine what factors affect the course of tardive dyskinesia (TD) during ongoing
neuroleptic treatment. In this study the data are from a series of annual examinations
using the Abnormal Involuntary Movement Scale (AIMS) in a cohort of outpatients. Average
neuroleptic exposure at the commencement of the examinations was 10 yr. The data on
AIMS scores at successive visits are analysed using autoregressive modeling. Two hundred
thirty-five patients contributed the 678 pairs of examinations. Separate analyses
are reported for orofacial, limb-truncal, and total AIMS scores. Different predictor
variables emerged as important for orofacial and limb-truncal dyskinesia. Age, sex,
being on anticholinergic medication, and two variables describing duration of neuroleptic
exposure contributed to the outcome score for total AIMS score after 1 yr.
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Article info
Publication history
Received in revised form:
April 6,
1992
Received:
October 10,
1991
Identification
Copyright
© 1992 Published by Elsevier Inc.