TITLE

The estimated life expectancy in a community cohort of Parkinson's disease patients with and without dementia, compared with the UK population

AUTHOR(S)
Peter Hobson
PUB. DATE
October 2010
SOURCE
Journal of Neurology, Neurosurgery & Psychiatry;Oct2010, Vol. 81 Issue 10, p1093
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
OBJECTIVE: To compare survival, life expectancies (LE), and the anticipated age at the time of death (AAD), in a community-based cohort of Parkinson's disease (PD) patients with and without significant cognitive impairment, with an age sex matched population of England and Wales. METHODS: The age- and sex-specific standardised mortality ratios (SMR) were calculated and stratified by dementia status. The LE and AAD estimations were calculated from the SMRs of the 2003 UK population, using a modified Gompertz function. RESULTS: In total, 166 PD patients participated in the investigation, of which 91 died by the 4-year follow-up. The overall SMR was 2.09 (95% CI 1.68 to 2.57). Demented patients had significantly higher SMRs than non-demented patients (SMR 3.10, 95% CI 2.39 to 3.96 vs SMR 1.15, 95% CI 0.75 to 1.69, p75 years), the differences in LE (demented 2.1; SD 1 vs not demented 4.7; SD 4) and AAD were less apparent (demented 89.5; SD 6 vs not demented 92.2; SD 6). CONCLUSION: The survival, LE and AAD in patients with PD are much lower compared with the general population, apart from those patients who do not develop dementia, who appear to have near normal population mortalities. However, dementia and younger onset of PD appear to be important determinants of survival, LE and AAD.
ACCESSION #
54245465

 

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