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Validation of the health assets index in the Australian inpatient setting: a multicentre prospective cohort protocol study
  1. Katherine Gregorevic1,
  2. Ruth E Hubbard2,
  3. Nancye May Peel2,
  4. Wen Kwang Lim3
  1. 1Department of Aged Care, Northern Health, Epping, Victoria, Australia
  2. 2Centre for Research in Geriatric Medicine, The University of Queensland, Brisbane, Queensland, Australia
  3. 3Department of Medicine and Aged care, Melbourne Health, Parkville, Victoria, Australia
  1. Correspondence to Dr Katherine Gregorevic; kate.gregorevic{at}


Introduction It is well known that frail older adults are at increased risk for mortality and functional decline on admission to hospital. Systematic review demonstrates that health assets are associated with improved outcomes for hospitalised older adults. The health assets index (HAI) has been developed to measure health assets in the hospital setting. A protocol has been developed to determine the predictive validity of the HAI for frail older adults.

Methods and analysis The HAI was developed based on a systematic review and secondary analysis of the interRAI-Acute Care (interRAI-AC) dataset. A pilot study was undertaken to refine the tool.

The validation study will be a multicentre prospective cohort. Participants will be adults aged 70 years and older with an unplanned admission to hospital. Frailty, illness severity and demographic data will also be recorded. The primary outcomes are mortality at 28 days postdischarge and functional decline at the time of discharge from hospital. The primary hypothesis is that a higher score on the HAI will mitigate the effects of frailty for hospitalised older adults. The secondary outcomes to be recorded are length of stay, readmission at 28 days and functional status at 28 days postdischarge. The correlation between HAI and frailty will be explored. A multivariate analysis will be undertaken to determine the relationship between the HAI and the outcomes of interest.

Ethics and dissemination Ethical approval has been obtained from Austin Health Human High Risk Ethics Committee. The results will be disseminated in peer-reviewed journals and research conferences. This study will determine whether the HAI has predictive validity for mortality and functional decline for hospitalised, frail older adults.

  • geriatric medicine
  • internal medicine
  • statistics & research methods

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  • Contributors All authors contributed significantly to the development of this manuscript. KJG contributed to design of the protocol and preparation of the manuscript. REH, NMP and WKL contributed to design of the protocol and revision of the manuscript. All authors gave final approval to the manuscript.

  • Funding This research received no specific grant from any funding agency in the public, commercial or not-for-profit sectors. This study will form part of a PhD being completed by KJG. KJG is supported by scholarships from the Australian Postgraduate Association through the University of Melbourne and the Northern Health Foundation.

  • Competing interests None declared.

  • Patient consent Not required.

  • Ethics approval Ethical approval has been obtained from Austin Health high-risk ethics committee.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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