Arch Dis Child 2000;83:468-474 ( December )

Article

Effect of severity of disability on survival in north east England cerebral palsy cohort J L Hutton^a, A F Colver^b, P C Mackie^c

^a Department of Statistics, University of Newcastle, Newcastle-upon-Tyne NE1 7RU, UK, ^b Department of Community Child Health, University of Newcastle, ^c County Durham Health Authority

Correspondence to: Dr Hutton j.l.hutton{at}warwick.ac.uk

Accepted 31 July 2000

AIMSTo investigate the effect of motor and cognitive disabilities on the survival of people on the North of England Collaborative Cerebral Palsy Survey, and compare this with other published results.
METHODSThe cerebral palsy cohort consists of 1960-1990 births in Northumberland, Newcastle, and North Tyneside health districts. Survival and cause of death were analysed in relation to data on birth, disabilities, and a unique measure of the impact of disability.
RESULTSDisability strongly influences survival. More than a third of those with a severe disability die before age 30. Fewer than a third of deaths are attributed to cerebral palsy on death certificates. Of those with severe cognitive disability, 63% live to age 35 (58% with severe ambulatory disability and 53% with severe manual disability), whereas at least 98% without severe disabilities live to age 35. The Lifestyle Assessment Score (LAS) allows a finer categorisation of impact of disability, and is strongly associated with survival: a ten point increase in LAS is associated with a doubling of the hazard rate. People who had LAS of at least 70, and had survived to age 5 have a 39% chance of dying before age 35.
CONCLUSIONSThe majority of people with cerebral palsy attain adulthood. There appears to be more variation in survival rates associated with severe disability between regions of England, than between north east England, British Columbia, and California. Instantaneous risks of dying vary widely between England and California. This variation is not obviously attributable to differing rates of severe disability.


Keywords: cerebral palsy; birth weight; cohort study; cognitive and motor disabilities; life expectancy; north east England

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© 2000 by Archives of Disease in Childhood
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eLetters:

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Effect of severity of disability on survival in north east England cerebral palsy cohort

David Strauss

ADC Online, 24 Mar 2001 [Full text]

Re: Effect of severity of disability on survival in north east England cerebral palsy cohort

J L Hutton, et al.

ADC Online, 8 May 2001 [Full text]