The Physical Resilience Instrument for Older Adults (PRIFOR) in Surgical Inpatients: Further Evidence for Its Factor Structure and Validity.

BACKGROUND: 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. OBJECTIVES: 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. DESIGN AND SETTING: A longitudinal study was adopted in a tertiary-care medical center in Taiwan. PARTICIPANTS: A total of 207 patients aged 65 years old and older who underwent surgery and if they were able to communicate independently. MEASUREMENTS: 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. RESULTS: 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). CONCLUSION: 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.

Predictive Validity of the Physical Resilience Instrument for Older Adults (PRIFOR).

This study aimed at evaluating the predictive ability of the Physical Resilience Instrument for Older Adults (PRIFOR) for the recovery of frailty, activity of daily living (ADL), and quality of life in older adults suffering from acute health stressors. The longitudinal study was adopted and patients aged 65 and older with Clinical Frailty Scale (CFS) scores between 4 and 6 were included. The PRIFOR was used to assess physical resilience at baseline. Katz ADL, CFS and EuroQoL 5-dimension Questionnaire (EQ5D) scores were all assessed at baseline and one month after discharge. The mean age of the 192 participants was 76.29 ± 6.53 years, and 50.5% were female. After adjusting for the baseline condition, the PRIFOR was only significantly associated with the CFS (ß=-0.183, p<0.001) at one month after discharge. Our study results provide evidence of the predictive capacity of the PRIFOR for recovery from frailty.