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Comparative Study
. 2014 Feb:31:363-8.
doi: 10.1016/j.yebeh.2013.09.042. Epub 2013 Nov 5.

Australia's seizure divide - indigenous versus non-indigenous seizure hospitalization

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Comparative Study

Australia's seizure divide - indigenous versus non-indigenous seizure hospitalization

Chris Plummer et al. Epilepsy Behav. 2014 Feb.

Abstract

Indigenous Australians suffer the highest mortality and morbidity rates of any ethnic minority in the developed world. To determine if the health outcome gulf between indigenous and non-indigenous Australians also applied to seizures, we conducted a retrospective analysis of seizure hospitalization (1998-2004) based on ethnicity (indigenous (I) and non-indigenous (NI)) for four Australian jurisdictions - Northern Territory (NT), Queensland (Qld), South Australia (SA), and Western Australia (WA). Total admissions were converted to age-standardized rates (ASR) and I/NI ASR ratios (I/NIRR) and compared across multiple variables. The summed admission (combined jurisdictions over six years) was 71,185 (I=11,593 and NI=59,592). Seizure hospitalization rate was always higher in the indigenous population (six-year I/NIRR - NT=5.6, Qld=4.0, SA=6.4, and WA=10.9; combined jurisdictions=5.6). Disparity was greatest for ages 40-64years (13.8) and 15-39years (7.0) and for indigenous males (7.4). As socioeconomic status rose, non-indigenous admission rates fell (ASR=1.7 to 1.1), yet indigenous admission rates rose (ASR=7.9 to 14.0). Indigenous emergency to elective admission ratios were higher (I=27 and NI=8), as were readmissions (1.5-2 fold), self-discharge separations (I=9.4% and NI=1.4%), bed days (I/NIRR=5.1), and admissions with an additional diagnosis (I/NIRR=3.3) or procedure (I/NIRR=3.4). Indigenous Australians maintained disproportionately high rates of emergency seizure hospitalization; from 1998 to 2004, the combined jurisdiction rate was more than five times the mean non-indigenous rate. Indigenous males aged 15-64years were overrepresented. Indigenous patients had lengthier admissions but higher self-discharge and readmission rates. The socioeconomic data raise the concern that social disadvantage restricts access to hospital-based seizure care for indigenous patients.

Keywords: Australia; Indigenous; Non-indigenous; Seizure hospitalization.

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