Comprehensive clinical assessment of home-based older persons within New Zealand: an epidemiological profile of a national cross-section

Type of content
Journal Article
Thesis discipline
Degree name
University of Canterbury. Geography
University of Canterbury. School of Health Sciences
Journal Title
Journal ISSN
Volume Title
Schluter, P.J.
Ahuriri-Driscoll, A.
Anderson, T.J.
Beere, P.
Brown, J.
Dalrymple-Alford, J.
David, T.
Davidson, A.
Gillon, D.A.
Hirdes, J.

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.

Schluter, P.J., Ahuriri-Driscoll, A., Anderson, T.J., Beere, P., Brown, J., Dalrymple-Alford, J., David, T., Davidson, A., Gillon, D.A., Hirdes, J., Keeling, S., Kingham, S., Lacey, C., Menclova, A.K., Millar, N., Mor, V., &Jamieson, H.A. (2016) Comprehensive clinical assessment of home-based older persons within New Zealand: an epidemiological profile of a national cross-section. Australian and New Zealand Journal of Public Health, (In press), pp. --.
interRAI instrument, community care assessment, epidemiology, national study, older persons health
Ngā upoko tukutuku/Māori subject headings
ANZSRC fields of research
Fields of Research::42 - Health sciences::4203 - Health services and systems::420301 - Aged health care
Field of Research::11 - Medical and Health Sciences::1117 - Public Health and Health Services::111708 - Health and Community Services
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