University of Tasmania

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Associations between socioeconomic status and place of residence with survival after aneurysmal subarachnoid haemorrhage

journal contribution
posted on 2023-05-21, 00:13 authored by Linda NicholsLinda Nichols, Seana GallSeana Gall, Stankovich, J, Christine StirlingChristine Stirling

Objectives: This study aims to understand early (< 24 h post ictus) and late (up to 12 months) survival post aneurysmal subarachnoid haemorrhage (aSAH), with a focus on rurality and socioeconomic status.

Methods: A statewide population-based cohort of aSAH cases in Tasmania, Australia, was established from 2010-2014 utilising multiple overlapping sources. Clinical data were collected from medical records and the Tasmanian Death Registry, with area-level rurality and socioeconomic status geocoded to participants' residential address.

Results: From a cohort of 237 (70% women, 36% disadvantaged, 38% rural) individuals over a 5-year period, 12-month mortality was 52.3% with 54.0% of these deaths occurring within 24 h post ictus. In univariable analysis of 12-month survival, outcome was not influenced by socioeconomic status but rural geographical location was associated with a non-significant increase in death (HR 1.22 95% CI 0.85-1.75) along with hypertension (HR 1.78 95% CI 1.07-2.98) and hypercholesterolemia (HR 1.70 95% CI 0.99-2.91). Multivariable analysis demonstrated a statistically significant increase in death to 12 months after aSAH for both hypertension (HR 1.81 95% CI 1.08-3.03) and hypercholesterolemia (HR 1.71 95% CI 1.00-2.94) but not socioeconomic status or geographic location.

Conclusion: We found high early death in this population-based aSAH Australian population. Survival to 12 months after aSAH was not related to either geographical location or socioeconomic status but modifiable risk factors increased the risk of death.


National Health & Medical Research Council


Publication title

Internal Medicine Journal

Article number

online ahead of print


online ahead of print




School of Nursing


Blackwell Publishing Asia

Place of publication

54 University St, P O Box 378, Carlton, Australia, Victoria, 3053

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This article is protected by copyright. All rights reserved

Repository Status

  • Restricted

Socio-economic Objectives

Treatment of human diseases and conditions; Health inequalities; Inpatient hospital care

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