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ESTIMATED GLOMERULAR FILTRATION RATE (eGFR)
In the NATSIHMS, cut off reference values for normal and abnormal results were sourced from the Chronic Kidney Disease (CKD) management guidelines by Kidney Health Australia.1 These guidelines are based on epidemiological data and publications of major clinical trials.
In the NATSIHMS, the following definitions were used for eGFR:
Further test information about the analysis method and machine used to measure eGFR levels is available in Excel spreadsheet format in the Downloads page of this product.
The data items and related output categories for this topic are available in Excel spreadsheet format from the Downloads page of this product.
Points to be considered when interpreting data for this topic include the following:
Comparability with other surveys
The NATSIHMS is the first ABS Aboriginal and Torres Strait Islander survey to collect biomedical information. Given it was also the first national level survey (ABS or otherwise) to collect such data for the Aboriginal and Torres Strait Islander population, no comparisons with previous surveys for this population are possible.
However, biomedical data was also collected for all Australians in the 2011-12 National Health Measures Survey (NHMS) and information about comparisons between the NHMS results and those of non-ABS surveys is available from the Comparisons with other Australian surveys section of the Biomedical Results for Chronic Diseases, 2011-12 publication.
1 Kidney Health Australia 2013, Chronic Kidney Disease (CKD) Management in General Practice. 2nd Edition 2012 <http://www.kidney.org.au/HealthProfessionals/CKDManagementinGeneralPractice/tabid/789/Default.aspx>, Last accessed 08/09/2014.
2 David W Johnson, Graham R D Jones, Timothy H Mathew, Marie J Ludlow, Matthew P Doogue, Matthew D Jose, Robyn G Langham, Paul D Lawton, Steven J McTaggart, Michael J Peake, Kevan Polkinghorne and Tim Usherwood, Australasian Creatinine Consensus Working Group 2012, Chronic kidney disease and automatic reporting of estimated glomerular filtration rate: new developments and revised recommendations, <https://www.mja.com.au/journal/2012/197/4/chronic-kidney-disease-and-automatic-reporting-estimated-glomerular-filtration>, Last accessed 08/09/2014.
3 National Institute of Health, 2014, 'Estimating GFR', National Kidney Disease Education Program, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health (NIH), U.S. Department of Health & Human Services (HHS), <http://nkdep.nih.gov/lab-evaluation/gfr/estimating.shtml>, Last accessed 08/09/2014.
4 Maple-Brown LJ, Lawton PD, Hughes JT, Sharma SK, Jones GR, Ellis AG, Hoy W, Cass A, Macisaac RJ, Sinha AK, Thomas MA, Piers LS, Ward LC, Drabsch K, Panagiotopoulos S, McDermott R, Warr K, Cherian S, Brown A, Jerums G, O'Dea K, 2010, Study Protocol--accurate assessment of kidney function in Indigenous Australians: aims and methods of the eGFR study, <http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2836987/>, Last accessed 08/09/2014.
5 Maple-Brown LJ, Cunningham J, Hodge AM, Weeramanthri T, Dunbar T, Lawton PD, Zimmet PZ, Chadban SJ, Polkinghorne KR, Shaw JE and K O'Dea 2011, High rates of albuminuria but not of low eGFR in Urban Indigenous Australians: the DRUID Study, BMC Public Health, <http://www.biomedcentral.com/1471-2458/11/346>, Last accessed 08/09/2014.