OBJECTIVE: There is continued uncertainty regarding the strength of association between performance-based and self-report measures of physical functioning, and of their relationship to self-efficacy and health-related quality of life (HRQoL). This study assessed the inter-relationships between such measures, and the predictors of 'physical' aspects of HRQoL in frail older patients. DESIGN: We used statistical models to determine the predictors of 'physical' HRQoL, according to the physical component summary score and the physical functioning domain of the 36-item short form (SF-36) questionnaire. SETTING: Patients were recruited from hospitals in Australia and New Zealand and followed up in their homes. SUBJECTS: Two hundred and forty-three frail older patients. MAIN MEASURES: Physical functioning was assessed using three performance-based measures (Timed Up and Go Test, gait speed and the Berg Balance Scale) and five self-report measures, including the modified falls self-efficacy scale, at three and six months after registration. RESULTS: A moderate association (r = 0.48-0.55) was found between each of the performance-based and self-report measures, including the SF-36 physical component summary score. Multiple linear regression analyses showed that the performance-based measures and falls self-efficacy predicted 33% of the SF-36 physical component summary score. Falls self-efficacy was the single highest predictor of both the SF-36 physical component summary score and SF-36 physical functioning domain. A curvilinear relationship was found between the SF-36 physical functioning domain and two variables: falls self-efficacy and the Berg Balance Scale. CONCLUSIONS: Although performance-based and self-report measures provide complementary but distinct measures of physical function, psychosocial factors such as self-efficacy have a strong influence on the HRQoL of frail older people.
OBJECTIVE: There is continued uncertainty regarding the strength of association between performance-based and self-report measures of physical functioning, and of their relationship to self-efficacy and health-related quality of life (HRQoL). This study assessed the inter-relationships between such measures, and the predictors of 'physical' aspects of HRQoL in frail older patients. DESIGN: We used statistical models to determine the predictors of 'physical' HRQoL, according to the physical component summary score and the physical functioning domain of the 36-item short form (SF-36) questionnaire. SETTING:Patients were recruited from hospitals in Australia and New Zealand and followed up in their homes. SUBJECTS: Two hundred and forty-three frail older patients. MAIN MEASURES: Physical functioning was assessed using three performance-based measures (Timed Up and Go Test, gait speed and the Berg Balance Scale) and five self-report measures, including the modified falls self-efficacy scale, at three and six months after registration. RESULTS: A moderate association (r = 0.48-0.55) was found between each of the performance-based and self-report measures, including the SF-36 physical component summary score. Multiple linear regression analyses showed that the performance-based measures and falls self-efficacy predicted 33% of the SF-36 physical component summary score. Falls self-efficacy was the single highest predictor of both the SF-36 physical component summary score and SF-36 physical functioning domain. A curvilinear relationship was found between the SF-36 physical functioning domain and two variables: falls self-efficacy and the Berg Balance Scale. CONCLUSIONS: Although performance-based and self-report measures provide complementary but distinct measures of physical function, psychosocial factors such as self-efficacy have a strong influence on the HRQoL of frail older people.
Authors: Janet E McElhaney; Xin Zhou; H Keipp Talbot; Ernst Soethout; R Chris Bleackley; David J Granville; Graham Pawelec Journal: Vaccine Date: 2012-01-27 Impact factor: 3.641
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Authors: K Renerts; K Fischer; B Dawson-Hughes; E J Orav; G Freystaetter; H-P Simmen; H-C Pape; A Egli; R Theiler; H A Bischoff-Ferrari Journal: Qual Life Res Date: 2019-02-09 Impact factor: 4.147
Authors: Srijana Shrestha; Melinda A Stanley; Nancy L Wilson; Jeffrey A Cully; Mark E Kunik; Diane M Novy; Howard M Rhoades; Amber B Amspoker Journal: Int Psychogeriatr Date: 2014-12-12 Impact factor: 3.878