Abstract: Objective To explore the clinical application value of Kihon Checklist in hospitalized elderly patients. Methods Three hundred elderly patients hospitalized in Peking Union Medical College Hospital from September 2021 to May 2022 were selected as the study subjects by convenient sampling method. All the patients completed comprehensive geriatric assessment within 3 days after admission, and were assessed with Fried frailty phenotype and Kihon Checklist respectively. Results The average age of the 300 elderly was 77.97±9.08 years old. A total of 122 patients with frailty (40.67%) were screened using Fried frailty phenotype, and 144 patients with frailty (48.00%) were screened using Kihon Checklist. The Kappa value of the consistency test between Fried frailty phenotype and Kihon Checklist was 0.745 (P<0.01). Spearman correlation analysis showed that the score of Kihon Checklist was negatively correlated with the scores of Mini-Mental State Examination (MMSE), Short Form Mini-Nutrition Assessment (MNA-SF), Barther index and Lawton Brody index (r=-0.449, -0.542, -0.444, -0.730, all P<0.01), and positively correlated with Charlson complication index (r=0.353, P<0.01). Receiver operating characteristic curve showed that the area under the curve for assessing frailty in elderly hospitalized patients using Kihon Checklist was 0.960, with a sensitivity of 0.831 and a specificity of 0.934, and the cut-off value was 9 points. Conclusions Kihon Checklist is fast, simple, and sensitive in screening frailty in hospitalized elderly patients, and it can guide medical staff to provide corresponding support to elderly patients with frailty.

Key words: frailty, comprehensive geriatric assessment, Kihon Checklist, hospitalized patient