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01-01-2015 | Brief Communication | Uitgave 1/2015

Quality of Life Research 1/2015

Does spouse participation influence quality of life reporting in patients with Parkinson’s disease?

Quality of Life Research > Uitgave 1/2015
Chelsea D. Morrow, Katherine Smentkowski, Stacy Schwartz, Melissa J. Armstrong, Ann L. Gruber-Baldini, Karen E. Anderson, Stephen G. Reich, William J. Weiner, Lisa M. Shulman



To investigate whether patient–spouse co-reporting (patient reporting with assistance from their spouse) results in the same ratings of health-related quality of life (HRQoL) as patient ratings without co-reporting, and to assess whether mutuality of the marital relationship is a determinant of co-reported ratings. Patients are the best source of HRQoL; however, co-reporting is common in clinical settings, but has not been compared to independent patient reporting of HRQoL.


Fifty-nine Parkinson’s disease (PD) patient–spouse pairs completed the Short Form Health Status Survey (SF-12), measuring mental and physical HRQoL. Initially, the patient and spouse completed the SF-12 independently (about the patient). Then, patient–spouse pairs completed the SF-12 together assessing the patient’s HRQoL. Patients and spouses independently completed the Mutuality Scale rating the intimacy of their relationship.


Patients rated physical HRQoL higher (M = 46.6) than spouses alone (M = 43.4, p < 0.01) and co-reporting (M = 44.8, p < 0.05). Co-reporting rated physical HRQoL in between that of patients and spouses, (p < 0.05). Spouses who reported greater mutuality showed greater concordance with the patient regarding the patient’s mental HRQoL (B = −0.43, p < 0.05).


Consistency of the mode of completion of HRQoL instruments is important since co-reporting may alter HRQoL ratings in PD and lead to inaccurate conclusions. Mutuality is a mediator of mental HRQoL.

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