Quality of life in patients with PD and their caregiving spouses: A view from both sides

Use of the visual analogue scale for health state valuation: a scoping review

OBJECTIVES

The visual analogue scale (VAS) has been used in the context of health and healthcare for various purposes, for example, to measure pain and to provide a single-index measure of health-related quality of life (HRQoL). This scoping review aims to describe how the VAS has been used for health state valuation in the published literature.

METHODS

The search was carried out in Medline, Web of Science and PsycInfo. The findings of the included articles were tabulated and presented descriptively using frequencies and proportions.

RESULTS

The database search yielded 4856 unique articles, out of these, 308 were included. In 83% of the articles, the main purpose for using a VAS was to value health states. The two most common perspectives when valuing health states with a VAS were hypothetical (44%) and own health (34%). Some (n = 14) articles used the VAS in the context of economic evaluations, including calculating quality-adjusted life years (QALYs). A large variation in the design of the VAS was found, including the description of the lower and upper anchors. Advantages and disadvantages with using a VAS were mentioned in 14% of the included articles.

CONCLUSION

The VAS has been a common method for valuing health states, both as a stand-alone method and in combination with other valuation methods. Despite its widespread use, the design of the VAS has been inconsistent which makes comparison of results across studies challenging. Further research on the role of using the VAS in economic evaluations is warranted.

The impact of caregiving on quality of life in Parkinson's disease: A systematic review

OBJECTIVE

Parkinson's disease (PD) is a progressive neurodegenerative disease that can reduce quality of life (QOL). Previous research has explored patient specific factors that influence QOL; but understanding external factors that may also affect patient QOL, such as caregiver characteristics, can provide additional intervention targets that may improve QOL for both the person with PD and their caregiver.

METHODS

We conducted a systematic review of existing literature on caregiver factors that are related to QOL for the person with PD. We developed a tailored search strategy in six databases and performed a screening procedure according to PRISMA guidelines. We synthesized findings from articles that met inclusion criteria using a narrative approach and identified themes categorizing caregiver factors associated with PD QOL.

RESULTS

We found 32 full-text articles that fulfilled the inclusion criteria and passed the quality appraisal. Seven themes were identified, including: (1) burden, (2) strain, (3) QOL and satisfaction, (4) demographic factors, (5) psychological factors, (6) relationship factors, and (7) caregiver input.

CONCLUSIONS

Our review presents critical insights into the role of the caregiver in the QOL of a person with PD. Findings reveal several targets for intervention to improve QOL in this population.

Partner perception of affective, behavioral, and cognitive reactions to voice use in people with Parkinson’s disease

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Behavior Assessment Battery – Voice in people with Parkinson’s disease and proxies.

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Proxies and people with Parkinson’s Disease rate psychosocial impact similarly.

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Proxies can be part of vocal assessment and treatment in Parkinson’s Disease.

Introduction

People with Parkinson’s disease (PWPD) experience negative feelings, thoughts, and coping behaviors due to the experienced communication challenges. This study aimed to compare the perceptions of PWPD with those of proxies for the affective, behavioral, and cognitive reactions specific to voice production during communicative interactions.

Methods

The Behavior Assessment Battery – Voice (BAB-Voice) was administered to 31 PWPD and their close communication partner/proxy. The BAB-Voice contained four subtests: Speech Situation Checklist – Emotional Reaction (SSC-ER), Speech Situation Checklist – Speech Disruption (SSC-SD), Behavior Checklist (BCL), and Communication Attitude Test for Adults (BigCAT). The scores for each of these subtests were calculated and statistically analyzed.

Results

A repeated measures MANOVA did not find statistically significant differences between the subscores of PWPD and proxies (Pillai’s trace = 0.25, F[4] = 2.22, p =.094, η_p² = 0.25). Fair to excellent agreement between the PWPD and proxies was found. The highest agreement was found on the BigCAT (ICC = 0.80). The SSC-SD (ICC = 0.77) and SSC-ER (ICC = 0.71) still showed excellent agreement, while only fair agreement was found for the BCL (ICC = 0.57).

Conclusion

Proxies were able to identify the affective, behavioral, and cognitive reactions to voice use in PWPD. Communication partners close to the PWPD could, therefore, provide valuable information regarding the assessment and treatment of hypophonia in PD.

Supporting the clinical use of the ICF in Japan - development of the Japanese version of the simple, intuitive descriptions for the ICF Generic-30 set, its operationalization through a rating reference guide, and interrater reliability study

Background

The World Health Organization developed the International Classification of Functioning, Disability, and Health (ICF) in 2001 and has been in the process of implementing it in clinics since then. Current international efforts to implement ICF in rehabilitation clinics include the implementation of ICF Core Sets and the development of simple, intuitive descriptions for the ICF Generic-30 Set (also called Rehabilitation Set). The present study was designed to operationalize these ICF tools for clinical practice in Japan. This work included 1) the development of the Japanese version of the simple, intuitive descriptions for the ICF Generic-30 Set, 2) the development of a rating reference guide for Activity and Participation categories, and 3) the examination of the interrater reliability of rating Activity and Participation categories.

Methods

The Japanese version of the simple, intuitive descriptions for the ICF Generic-30 Set was developed following the process employed to develop the Chinese and Italian versions.

For further operationalization of this ICF Set in practice, a rating reference guide was developed. The development of the rating reference guide involved the following steps: 1) a trial of rating patients by several raters, 2) cognitive interviewing of the raters to analyse the thinking process involved in rating, 3) drafting of the rating reference guide, and 4) review by ICF specialists to confirm consistency with the original ICF concepts.

After the rating reference guide was developed, interrater reliability of the rating with the reference guide was determined. Interrater reliability was examined using weighted kappa statistics with linear weight.

Results

Through the pre-defined process, the Japanese version of the simple, intuitive descriptions for 30 categories of the ICF Generic-30 Set and the rating reference guides for 21 Activity and Participation categories were successfully developed. The weighted kappa statistics ranged from 0.61 to 0.85, showing substantial to excellent agreement of the ratings between raters.

Conclusions

The present study demonstrates that ICF categories can be translated into clinical practice. Collaboration between clinicians and researchers would further enhance the implementation of the ICF in Japan.

Perception on the Quality of Life, Communication and Life Satisfaction among Individuals with Parkison's and Their Caregivers

BACKGROUND

Speech impairment, which reduces Quality of Life (QOL), frequently occurs in individuals with Parkinson's disease (PD). As speaking is required for social interaction, speech impairment can reduce one's life satisfaction. Although QOL has been well-studied in individuals with PD, the QOL of their caregivers has seldom been investigated. This study compared the QOL of individuals with PD and their caregivers. The relationships between QOL, self-rated speech scale, and life satisfaction level were examined.

METHOD

A total of 20 individuals with PD and their caregivers completed the Parkinson's disease Questionnaire-39 (PDQ-39) scale and the Life Satisfaction Scale (LSS). In addition, PD participants were asked to complete the Self-Rated Speech Scale (SRSS) to rate their speech intelligibility.

RESULT

PD participants reported significantly lower QOL scores than their caregivers. However, there was no difference between the two groups on the social support and stigma dimensions, indicating that both groups reported similar levels of social support and stigma in their daily lives. A moderate significant correlation was observed between the LSS and PDQ-39 scores in the PD group, suggesting that life satisfaction could affect their QOL. Moreover, moderate correlation was found between the LSS and SRSS, showing that participants self-reported speech intelligibility has an impact on their life satisfaction.

CONCLUSION

In general, individuals with PD showed lower QOL than their caregivers. Given that the SRSS, LSS and QOL are moderately correlated, identifying patients' perception on their speech intelligibility and life satisfaction could help clinicians to better understand their patients' needs when delivering speech therapy services.

Assessing the validity of proxy caregiver reporting for potential palliative care outcome measures in Parkinson's disease

BACKGROUND

There is increasing interest in applying palliative care approaches for patients with Parkinson's disease. Methodological studies are needed to validate palliative care outcome measures for Parkinson's disease to build this evidence base. As many patients with Parkinson's disease have cognitive and/or communication issues, proxy outcome measures may improve the inclusivity and relevance of research.

AIM

To assess the validity of proxy caregiver reports for several potential palliative care outcome measures.

DESIGN

A cross-sectional study of Parkinson's disease patients and caregivers completed a battery of outcome measures relevant to palliative care including the Memorial Symptom Assessment Scale, Hospital Anxiety and Depression Scale, Prolonged Grief Questionnaire 12, Parkinson Disease Questionnaire 39, Functional Assessment of Chronic Illness Therapy-Spiritual Wellbeing, and Schwab and England. Intraclass correlation coefficients were used to assess agreement.

SETTING/PARTICIPANTS

A total of 50 Parkinson's disease patient and caregiver dyads recruited at an academic medical center, Veterans Affairs Medical Center, and community support groups.

RESULTS

There was moderate to good agreement for Schwab and England, Parkinson Disease Questionnaire 39 total, and majority of Parkinson Disease Questionnaire 39 subscales; moderate to good agreement for the Hospital Anxiety and Depression Scale, Functional Assessment of Chronic Illness Therapy-Spiritual Wellbeing, Prolonged Grief Questionnaire 12, and Memorial Symptom Assessment Scale; and poor to moderate agreement for the Parkinson Disease Questionnaire 39 stigma, social support, and bodily pain subscales. Caregivers tended to attribute higher symptom severity than patients. We did not detect differences in intraclass correlation coefficient based on cognitive status but patients with advanced illness had significantly lower intraclass correlation coefficients for several outcomes.

CONCLUSIONS

Caution is indicated when considering caregiver proxy reporting for most outcomes assessed, particularly in Parkinson's disease patients with advanced disease.

Strategies to maintain quality of life among people with Parkinson's disease: what works?

Among chronic neurodegenerative disorders, Parkinson's disease (PD) is one of the most difficult and challenging to tackle as several motor and nonmotor features influence the patients' quality of life (QoL) and daily activities. Assessing patients QoL with valid instruments and gathering knowledge about the determinants that affect QoL in individuals with PD are the basis of an efficient caring strategy. In addition to the known motor symptoms, nonmotor disorders must also be comprehensively tracked and targeted for treatment to enhance QoL. A holistic strategy to maintain QoL in people with PD should consist of a multidisciplinary, personalized and patient-centered approach with timely administration of palliative care and efficient involvement of caregivers and family members.