Validity and reliability of the G8 screening test in older non-cancer patients
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RESEARCH PAPER
Validity and reliability of the G8 screening test in older non‑cancer patients Cagatay Cavusoglu1 · Olgun Deniz1 · Rana Tuna Dogrul1 · Ibrahim Ileri1 · Funda Yildirim1 · Hatice Caliskan1 · Cemile Ozsurekci1 · Suheyla Coteli1 · Muhammet Cemal Kizilarslanoglu2 · Berna Goker1 Received: 18 May 2020 / Accepted: 16 September 2020 © European Geriatric Medicine Society 2020
Abstract Purpose A comprehensive geriatric assessment (CGA) is a time-consuming approach that requires a special team and a screening test, whereas the G8 screening test is a practical and validated test for screening cancer patients. This study aimed to evaluate the validity and reliability of the G8 test in older patients without cancer and to investigate its concordance with CGA in an outpatient clinic. Methods Two hundred older patients were included in the study. CGA and G8 tests were performed, and the concordance between them was evaluated for scale validity using Spearman correlation coefficients (r) and kappa analyses. Patients who obtained scores lower than the predefined cutoff values in at least one of the CGA tests were considered to have an abnormal CGA. Inter-rater and intra-rater concordance were assessed for reliability. Results Of the 200 patients, 57.4% were female, and the median age was 73 (63–93) years. There was a strong concordance between the CGA and G8 screening test (kappa: 0.630; p
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