Journal article

Temporal trends in cerebral palsy by impairment severity and birth gestation

Susan M Reid, Elaine Meehan, Sarah McIntyre, Shona Goldsmith, Nadia Badawi, Dinah S Reddihough



AIM: Our aim was to build on previous research indicating that rates of cerebral palsy (CP) in the Australian state of Victoria are declining, and examine whether severity of impairments is also decreasing. METHOD: Data on individuals with CP were extracted from the Victorian Cerebral Palsy Register for birth years 1983 to 2009. The yearly rates of dichotomized categories for gross motor function, motor laterality, intellectual impairment, and epilepsy per 1000 neonatal survivors and proportions in the CP cohort were tabulated and plotted by birth gestation. Linear regression modelling was used to fit prediction curves; likelihood ratio tests were used to test for differences in trends betwe..

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Funding Acknowledgements

We gratefully acknowledge the funding provided to the Victorian Cerebral Palsy Register by the Victorian Department of Health and the Victorian Medical Insurance Agency. We are also indebted to the Victorian Perinatal Data Collection Unit, under the auspices of the Consultative Council on Obstetric and Paediatric Mortality and Morbidity (CCOPMM), for provision of Victorian population birth data and to Professor John Carlin, Director of the Clinical Epidemiology and Biostatistics Unit at the Melbourne Children's campus, for statistical advice. Infrastructure support was provided by the Victorian Government's Operational Infrastructure Support Program, and SMR received salary support through an Early Career Fellowship (2014-2017) from the Australian National Health and Medical Research Council. SM, NB, and SG also acknowledge the support of the Cerebral Palsy Alliance Research Foundation. The supplement was funded by the Research Foundation, Cerebral Palsy Alliance.