Caregiver Burden and Quality of Life in Late Stage Parkinson's Disease.

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Parkinson's disease (PD) is a chronic, progressive, neurodegenerative disease involving both motor and non-motor symptoms (NMS). In the late stage of the disease, Hoehn and Yahr (HY) stages IV-V, the symptomatology is often severe and patients become increasingly dependent on help in their daily life, resulting in an increased burden for the informal caregivers. To assess the implications of the caregiver burden, caregiver quality of life (QoL) was assessed in 74 informal caregivers to patients in late stage PD, by the Alzheimer's Patient Partners Life Impact Questionnaire (APPLIQue), which has been found useful also in PD. The majority of caregivers were the spouse/partner. Individual items provided information on which aspects of caregiver burden were the most common, i.e., items: "feel guilty if not there" (71% affirmed), "situation wears me down" (65% affirmed) and "always on my mind" (61% affirmed). In simple linear regression analyses, female patient gender (p = 0.007), better cognition (p = 0.004), lower NMS burden (p = 0.012) and not being the partner (p = 0.022) were associated with better caregiver QoL. Multivariable linear regression analyses identified better cognition (p = 0.004) and female patient gender (p = 0.035) as independently associated with better informal caregiver QoL. Identifying and treating NMS as well as recognizing and alleviating caregiver burden seem essential to enhance QoL for both patients and caregivers in late stage PD.

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