Mediating Effect of Mutuality on Health-Related Quality of Life in Patients with Parkinson’s Disease

Figure 2

Direct effects reported as standardized path coefficients for the final model with HRQoL (PDQ8) as the outcome variable. Dashed lines are nonsignificant direct paths which were removed in the final model. The best fit of the final path model was achieved with χ² = 7.980, df = 9, CMIN/DF = 0.887, , GFI = 0.968, NFI = 0.939, CFI = 1.0, TLI = 1.0, and RMSEA = 0.00 (95% CI = 0.00 − 0.146) ( dyads). Note: PD: Parkinson’s disease; Pat. MS: PD patients’ mutuality scale; Part. MS: PD partners’ mutuality scale; PDQ8: Parkinson’s disease questionnaire summary index; IQCODE: informant questionnaire on cognitive decline in the elderly; NMS: non-motor symptoms questionnaire; UPDRS III: unified Parkinson’s disease rating scale-part III; ADL: activities of daily life (0 = independent; 1 = dependent); gender: 0 = female; 1 = male; age: PD partners’ age.