Article

The aim of this study was to describe the distribution of types of motor
disorder (motor type) in a population-based registry of children with cerebral
palsy (CP), to examine any trends in motor type distribution over time, and to
make comparisons with other populations. METHOD: Individuals born in Victoria,
Australia, between 1970 and 2003 with congenital CP were identified from the
Victorian Cerebral Palsy Register, 3297 of whom were included in the study (1840
males, 1457 females). Those who had a hypotonic motor type, those whose brain
abnormality was believed to have developed after 28 days of life, and those with
missing data were excluded from the study. The proportions of each motor type
were calculated and plotted by year of birth. Logistic regression analyses were
used to assess the mean change in odds per year of birth. A systematic review of
the international literature was undertaken and comparison data were extracted
based on previously devised criteria. The degree of heterogeneity was assessed
and comparisons were made according to geographical region and reporting period.
RESULTS: In Victoria, the predominant motor types for individuals with CP born
between 1970 and 2003 were spasticity (91%), ataxia (5%), and dyskinesia (4%).
There was no clear trend for any motor type over time. The mean proportions from
two other large data sets were similar but there was considerable heterogeneity
between 29 individual CP registries, mainly because of differences in the
classification of mixed motor types. INTERPRETATION: A more objective method for
determining the predominant motor type is required to make the classification of
motor type in CP more consistent and reliable.
CI - (c) The Authors. Journal compilation (c) Mac Keith Press 2010.

Langue : ANGLAIS