This study aimed to evaluate whether psychological resilience is an independent factor of self-rated health (SRH) among patients with knee osteoarthritis (KOA). A cross-sectional study with ...convenience sampling was designed. Patients with doctor-diagnosed KOA were recruited from the orthopedic outpatient departments of a hospital in southern Taiwan. Psychological resilience was measured by the 10-item Connor-Davidson Resilience Scale (CD-RISC-10), and SRH was measured by three items, including the current SRH, the preceding year-related SRH, and age-related SRH. The three-item SRH scale was categorized as "high" and "low-moderate" groups by terciles. Covariates included KOA history, site of knee pain, joint-specific symptoms measured by the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), comorbidity measured by Charlson Comorbidity Index, and demographic variables (i.e., age, sex, education attainment, and living arrangements). A multiple logistic regression was used to detect the independent variables with significant odds ratios that can predict "high" SRH among participants. Results: In total, 98 patients with KOA (66 women and 32 men) with a mean age (±SD) of 68.3 ± 8.5 years were enrolled and were analyzed. A total of 38.8% (n = 38) of participants were categorized as "high SRH", while 61.2% (n = 60) were categorized as "low-moderate SRH". Multiple logistic regression showed that CD-RISC-10 had an increased odds ratio (OR) for high SRH (OR 95% CI = 1.061 1.003-1.122;
= 0.038), whereas bilateral pain (vs. unilateral pain), WOMAC stiffness, and WOMAC physical limitation showed a decreased OR for high SRH (0.268 0.098-0.732, 0.670 0.450-0.998, and 0.943 0.891-0.997, respectively). Our findings provide evidence indicating that psychological resilience plays a significant positive role in the SRH in our study sample. Further research is required to extend the growing knowledge regarding the application of psychological resilience on KOA.
Resilience is the personality trait of having positive dispositions which enable individuals to cope with stressful situations. Hence, a reliable resilience scale can provide useful information on ...understanding and treating individuals suffering from stress and trauma. The 10-item Connor-Davidson Resiliance Scale (CD-RISC-10) is a candidate scale. However, very little psychometric research has been conducted on this scale and, moreover, psychometric analyses to date have not been conclusive. To attain further evidence of the scale's psychometric properties, we tested the CD-RISC-10 on 288 adult Education major students at an Australian University using both traditional (factor analyses) and modern (Rasch) measurement approaches. Factor analyses indicated good psychometric functioning of the scale. However, Rasch modelling revealed evidence of item misfit and multiple dimensions. Optimal performance was achieved after the removal of two misfitting items indicating a well-functioning 8-item scale.
