Development and reliability and validity test of the fall risk perception scale for elderly tumor inpatients undergoing radiotherapy

WANG Xue; SHI Baoxin; CHEN Xiwei; WU Qian; WANG Ying; DU Yan

doi:10.12102/j.issn.1009-6493.2025.08.013

Abstract：Objective:To develop the fall risk perception scale for elderly tumor inpatients undergoing radiotherapy,and to test its reliability and validity,so as to provide a valid self-assessment tool for fall pre vention.Methods:The fall risk perception scale for elderly tumor inpatients undergoing radiotherapy was constructed by literature review,semi-structured interview,expert consultations and pilot survey.A total of 413 elderly tumor inpatients undergoing radiotherapy were selected for investigation to test the reliability and validity of the scale.Results:The fall risk perception scale for elderly tumor inpatients undergoing radiotherapy included 24 items in 4 dimensions,including disease and treatment susceptibility perception(10 items),behavioral susceptibility perception(7 items),environmental susceptibility perception(3 items)and fall severity perception(4 items).The average of scale-level content validity index(S-CVI/Ave)was 0.970.And the item-level content validity index(I-CVI)ranged from 0.833 to 1.000.Exploratory factor analysis extracted four common factor.The cumulative contribution rate of variance was 82.774％.Confirmatory factor analysis showed that the model fit well.The Cronbach's α coefficient of the overall scale was 0.973.And the Guttman split-half reliability was 0.936.The Cronbach's a coefficients of each dimension ranged from 0.947 to 0.966.And the Guttman split-half reliability ranged from 0.939 to 0.949.Conclusions:The fall risk perception scale for elderly inpatients with radiotherapy for tumor has good reliability and validity.It could be used to assess elderly cancer radiotherapy inpatients'fall risk perception.