Abstract
The Physical Resilience Instrument for Older Adults (PRIFOR) is a questionnaire for assessing physical resilience in older adults suffering from acute health stressors. Prior psychometric evidence of the PRIFOR showed that it has good criterion-related validity, known-group validity, predictive validity, and internal consistency. However, it is unclear whether the PRIFOR can be replicated in older adults suffering after surgical treatment. This study aimed at evaluating whether the three-factor structure of the PRIFOR can be replicated in older adults suffering after surgical treatment. Moreover, the concurrent validity of the PRIFOR was examined using the association between the PRIFOR and measures of depression, cognition, activities of daily living, and frailty. A longitudinal study was adopted in a tertiary-care medical center in Taiwan. A total of 207 patients aged 65 years old and older who underwent surgery and if they were able to communicate independently. The PRIFOR, the 5-item Geriatric Depression Scale, the Short Portable Mental Status Questionnaire, the Katz Index of Independence in Activities of Daily Living and Clinical Frailty Scale were all assessed after surgery. The three-factor structure (positive thinking, cope and adjust lifestyle, and belief and hopeful mindset) was supported by the CFA results in the present sample. In addition, the PRIFOR showed good concurrent validity with depression (r = -0.470 to -0.542), cognition (r = 0.358 to 0.409), activities of daily living (r = 0.209 to 0.310), and frailty (r =-0.161 to -0.237). The PRIFOR can be recommended to measure physical resilience in older adults suffering after surgical treatment. For the adequate estimation of older adults' level of physical resilience postoperatively and to guide the implementation of individualized interventions, it is important to provide appropriate care for older adults to recover after surgery.
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