Disability burden due to stroke in Western Australia: new insights from linked data sources

Katzenellenbogen, Judith M., Begg, Stephen, Somerford, Peter, Anderson, Craig S., Semmens, James B., Codde, James P. and Vos, Theo (2010) Disability burden due to stroke in Western Australia: new insights from linked data sources. International Journal of Stroke, 5 4: 269-277. doi:10.1111/j.1747-4949.2010.00439.x

Author Katzenellenbogen, Judith M.
Begg, Stephen
Somerford, Peter
Anderson, Craig S.
Semmens, James B.
Codde, James P.
Vos, Theo
Title Disability burden due to stroke in Western Australia: new insights from linked data sources
Journal name International Journal of Stroke   Check publisher's open access policy
ISSN 1747-4930
Publication date 2010-08
Sub-type Article (original research)
DOI 10.1111/j.1747-4949.2010.00439.x
Volume 5
Issue 4
Start page 269
End page 277
Total pages 9
Place of publication Richmond, Vic, Australia
Publisher Wiley-Blackwell Publishing Asia
Collection year 2011
Language eng
Subject 1117 Public Health and Health Services
Formatted abstract
Background The disability-adjusted life year index is used extensively to compare disease burden among diseases and locations, but difficulties remain in accurately estimating the nonfatal stroke burden in years lived with disability.

Aims To improve stroke-related years lived with disability estimates in Western Australia for 2000, by improving the accuracy of component inputs: nonfatal (28-day survivor) incidence, disease duration and disability (severity) weights.

Methods Nonfatal stroke incidence and the mortality difference between prevalent cases and the general population were estimated from linked hospital and mortality data using the Western Australian Data Linkage System. dismod software used these inputs to model disease duration. Disability weights were estimated from population-based stroke survey data, using indirect health valuation methods and adjusting for prestroke disability. Years lived with disability were calculated from the three components.

Results The annual age-standardised nonfatal incidence (n=1985) was higher in males (121/100 000) than females (96/100 000). The duration varied between 35·8 (females 15–24 years) and 3·4 years (males 85+ years). The mean pre-stroke-adjusted disability weight was higher at 4-months (0·38) than at 12-months (0·31). The age-standardised rate of nonfatal burden in males (302/100 000; 95% CI 290–314) was significantly higher than that in females (250/100 000; 95% CI 240–260). The nonfatal proportion of stroke burden (males 45%; females 37%) was higher than estimated in previous studies.

Conclusion This study illustrates that previous reports most likely underestimated disability burden as a contributor to the total stroke burden in Australia. Methodological refinements will contribute to burden of disease studies elsewhere.  © 2010 The Authors. Journal compilation © 2010 World Stroke Organization.
Keyword Chronic disease
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Official 2011 Collection
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Created: Sun, 18 Jul 2010, 00:06:11 EST