Philip J Schluter1,2, Annabel Ahuriri-Driscoll1, Tim J Anderson3,4, Paul Beere5, Jennifer Brown6, John Dalrymple-Alford4,7, Timothy David8, Andrea Davidson9, Deborah A Gillon10, John Hirdes11, Sally Keeling3, Simon Kingham5,5, Cameron Lacey12,13, Andrea K Menclova14, Nigel Millar9, Vince Mor15, Hamish A Jamieson3,9. 1. School of Health Sciences, University of Canterbury, New Zealand. 2. School of Nursing, Midwifery and Social Work, The University of Queensland. 3. Department of Medicine, University of Otago, New Zealand. 4. New Zealand Brain Research Institute. 5. GeoHealth Laboratory, University of Canterbury, New Zealand. 6. Department of Mathematics and Statistics, University of Canterbury, New Zealand. 7. Department of Psychology, University of Canterbury, New Zealand. 8. UC High Performance Computing, University of Canterbury, New Zealand. 9. Canterbury District Health Board, New Zealand. 10. Centre for Postgraduate Nursing Studies, University of Otago, New Zealand. 11. School of Public Health and Health Systems, University of Waterloo, Ontario, Canada. 12. Māori/Indigenous Health Institute (MIHI), University of Otago, New Zealand. 13. Department of Psychological Medicine, University of Otago, New Zealand. 14. Department of Economics and Finance, University of Canterbury, New Zealand. 15. School of Public Health, Brown University, Rhode Island, USA.
Abstract
OBJECTIVE: Since 2012, all community care recipients in New Zealand have undergone a standardised needs assessment using the Home Care International Residential Assessment Instrument (interRAI-HC). This study describes the national interRAI-HC population, assesses its data quality and evaluates its ability to be matched. METHODS: The interRAI-HC instrument elicits information on 236 questions over 20 domains; conducted by 1,800+ trained health professionals. Assessments between 1 July 2012 and 30 June 2014 are reported here. Stratified by age, demographic characteristics were compared to 2013 Census estimates and selected health profiles described. Deterministic matching to the Ministry of Health's mortality database was undertaken. RESULTS: Overall, 51,232 interRAI-HC assessments were conducted, with 47,714 (93.1%) research consent from 47,236 unique individuals; including 2,675 Māori and 1,609 Pacific people. Apart from height and weight, data validity and reliability were high. A 99.8% match to mortality data was achieved. CONCLUSIONS: The interRAI-HC research database is large and ethnically diverse, with high consent rates. Its generally good psychometric properties and ability to be matched enhances its research utility. IMPLICATIONS: This national database provides a remarkable opportunity for researchers to better understand older persons' health and health care, so as to better sustain older people in their own homes.
OBJECTIVE: Since 2012, all community care recipients in New Zealand have undergone a standardised needs assessment using the Home Care International Residential Assessment Instrument (interRAI-HC). This study describes the national interRAI-HC population, assesses its data quality and evaluates its ability to be matched. METHODS: The interRAI-HC instrument elicits information on 236 questions over 20 domains; conducted by 1,800+ trained health professionals. Assessments between 1 July 2012 and 30 June 2014 are reported here. Stratified by age, demographic characteristics were compared to 2013 Census estimates and selected health profiles described. Deterministic matching to the Ministry of Health's mortality database was undertaken. RESULTS: Overall, 51,232 interRAI-HC assessments were conducted, with 47,714 (93.1%) research consent from 47,236 unique individuals; including 2,675 Māori and 1,609 Pacific people. Apart from height and weight, data validity and reliability were high. A 99.8% match to mortality data was achieved. CONCLUSIONS: The interRAI-HC research database is large and ethnically diverse, with high consent rates. Its generally good psychometric properties and ability to be matched enhances its research utility. IMPLICATIONS: This national database provides a remarkable opportunity for researchers to better understand older persons' health and health care, so as to better sustain older people in their own homes.
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