ICF Linking and Cognitive Interviewing Are Complementary Methods for Optimizing Content Validity of Outcome Measures: An Integrated Methods Review

Outcome measurement instruments for adult brachial plexus injury: a systematic review of development and measurement properties

PURPOSE

To review candidate outcome measurement instruments (OMIs) for the core outcome set (COS) for brachial plexus injury (BPI) and identify those with the strongest measurement properties.

METHODS

We conducted a PRISMA-compliant systematic review to identify studies on the measurement properties of domain-specific OMIs for adult BPI. OMIs with adequate content validity were further evaluated. Two independent reviewers assessed the methodological quality of each study using the COSMIN Risk of Bias checklist and assessed overall quality using a modified GRADE approach.

RESULTS

Nineteen development/validation studies concerning nine OMIs were identified. The Brachial Assessment Tool (BrAT) and the Impact of Brachial Plexus Injury Questionnaire (IMBPIQ) (both measuring carrying out daily routine) had sufficient content validity to proceed to full evaluation. The BrAT had moderate quality evidence to support its psychometric properties. The IMBPIQ needs further research to evidence structural validity and internal consistency. The Brief Pain Inventory has strong psychometric properties in other populations and is recommended for the core measurement set (CMS) for chronic pain.

CONCLUSIONS

The BrAT and the Brief Pain Inventory are recommended for inclusion in the BPI CMS. Further consensus work is needed to identify the most appropriate OMI for voluntary movement.

Systematic Review Registration: PROSPERO (CRD42022307564).

Performance-Based Outcome Measures After Hip or Knee Arthroplasty: A Systematic Review and Content Analysis Using the International Classification of Functioning, Disability and Health (ICF)

RATIONAL

One of the important considerations to select the appropriate outcome measures is determining if the tool is relevant to patients. Despite the availability of various performance-based tests to objectively assess function, it is unknown which performance-based tests best capture important aspects of function after hip or knee arthroplasty.

AIMS AND OBJECTIVES

Our systematic review aimed to identify the existing performance-based tests used in hip or knee arthroplasty and link the activity component of each test to the modified International Classification of Functioning, Disability and Health (ICF) core set for osteoarthritis (OA).

METHOD

We searched four databases from inception until April 2024. A performance-based test was included if an individual performs one or more activities, evaluated by an assessor and resulted in a numerical value. Two reviewers independently screened and extracted data and assessed the included performance-based tests.

RESULTS

From 449 studies included in this review, we identified 28 performance-based tests which covered 15 categories of OA core set activity and participation. The categories of d4500:walking short distances, d4104:standing and d4103:sitting were the most frequently used, employed in 14, 10 and 10 performance-based tests, respectively. However, 34 categories of activity and participation were not found in any performance-based tests. A-test ('A' like Activity or Assessment) had the widest coverage covering 10 out of 49 core set categories. Four performance tests covered four activity and participation categories, one covered three categories, 10 covered two categories and 12 covered one category.

CONCLUSION

Our ICF-based content analysis revealed that the existing performance-based tests covered certain OA core set activity and participation categories, but overlooked multiple categories. This analysis can serve as a guide for researchers and clinicians in selecting suitable performance-based tests or a battery of tests to assess function following hip or knee arthroplasty.

Development of ICF-based patient-reported outcome and experience measures to study social participation among people with chronic diseases: a mixed-methods protocol

INTRODUCTION

Living with a chronic disease impacts many aspects of life, including the ability to participate in activities that enable interactions with others in society, that is, social participation (SP). Despite efforts to monitor the quality of care and life of chronically ill people in Belgium, no disease-specific patient-reported measures (PRMs) have been used. These tools are essential to understand SP and to develop evidence-based recommendations to support its improvement. This protocol presents the phases for the disease-specific development of patient-reported outcome and experience measures to assess SP and its potential determinants among people living in Belgium with cancer, cystic fibrosis, diabetes, HIV or a neuromuscular disease.

METHODS AND ANALYSIS

This protocol applies the PROMIS Instrument Development and Validation Scientific Standards and COnsensus-based Standards for the selection of health Measurement INstruments to develop PRMs in a disease-specific manner to quantify the components of the International Classification of Functioning, Disability and Health (ICF). A mixed-method approach is used to create broad initial item pools based on patient (focus groups) and literature perspectives which are compared within ICF-standardised language by applying the refined ICF linking rules. An item set is first created based on this cross-matching exercise and then validated by multidisciplinary expert panels. Cognitive assessment and pilot testing are followed by the dissemination of the survey to a representative sample in Belgium. Advanced psychometric testing (classical test theory and item response theory) is applied to inform an item reduction strategy for the final measures and to develop scales for the ICF components.

ETHICS AND DISSEMINATION

Ethical approval was granted by the Ethics Committee of the Ghent University Hospital on 20 February 2023 to organise the patient focus groups (ONZ-2022-0470). Ethical approval for dissemination of the PRMs and psychometric testing will be sought at the Ghent University Hospital Ethics Committee at the start of Phase 6. Results will be disseminated through peer-reviewed journals and professional conferences.

Quality of life measures for people following stroke: a structured content review

INTRODUCTION

Patient Reported Outcome Measures (PROMs) are used widely to collect patient perspectives on their Health-Related Quality of Life (HRQoL) after stroke. Existing reviews on PROMs typically report the psychometric properties but rarely focus on the content validity. We performed a structured review of the content of items of stroke-specific HRQoL outcomes.

METHODS

We searched four databases using a combination of terms (Stroke, HRQoL, PROMs) to choose the three most frequently used stroke-specific HRQoL-related PROMs. Two raters independently linked the items of the Stroke Impact Scale, Stroke Specific Quality of Life and the Stroke and Aphasia Quality of Life to the International Classification of Functioning, Disability and Health (ICF) and Item Perspective Classification (IPC). We compared the ICF codes to the ICF Core Sets for Stroke and calculated ICF linkage indicators.

RESULTS

More than 75% of the content for all three PROMs is represented in the Comprehensive Stroke Core Set, indicating the universality and validity of the content of these PROMs. All three PROMs represent the content of the ICF Core Sets for Stroke to a similar extent. Most items use an Intensity response option and have a Descriptive perspective. On the IPC framework, most items have a Rational appraisal type and represent the Biological domain.

CONCLUSION

Clinicians and researchers should use patient goals as a reference to choose the appropriate PROM. A deeper understanding of the content of PROMs can help clinicians and researchers make informed decisions on which HRQoL outcomes to use among people following stroke.

Rehabilitation of stage-one scapholunate instability (ReSOS): An online survey of UK practice

Introduction

Scapholunate instability is one of the most frequent types of wrist instability, but optimal management is not established. This research aims to identify current conservative management strategies for stage-one scapholunate instability and how these interventions are evaluated in the UK.

Methods

A cross-sectional online survey of UK physiotherapists and occupational therapists with self-reported experience in the rehabilitation of stage-one scapholunate instability (ReSOS), was developed using the CROSS guideline and a clinical vignette. The frequency of treatment strategies was collated via a five-point Likert-type scale and evaluation strategies via fixed-response answers at three-to-six, seven-to-eleven and after 12 weeks post-injury. Data were analysed descriptively.

Results

Forty-three electronic surveys were completed and analysed. Thirty physiotherapists and 13 occupational therapists responded, with 90% working in the NHS. Activity advice and education was the most frequently used treatment at all time-points (100%, 98%, 98%). Quick-DASH was most frequently used region-specific patient reported outcome measure at all time-points (72%, 60%, 67%).

Discussion

Despite some identified themes, including neuromuscular rehabilitation strategies, the supporting evidence is limited in the ReSOS. It is unclear what rehabilitation and evaluation strategies are optimal and the development of a consensus on best practice is recommended.

Functional Patient-Reported Outcome Measures After Hip or Knee Arthroplasty: A Systematic Review and Content Analysis Using the International Classification of Functioning, Disability, and Health

OBJECTIVE

This systematic review aimed to identify the existing patient-reported outcome measures (PROMs) used in hip or knee arthroplasty for adults with osteoarthritis and assess their content validity using the modified International Classification of Functioning, Disability, and Health (ICF) core set for osteoarthritis (OA).

METHODS

Four databases were systematically searched to identify disease or joint-specific PROMs evaluating function after hip or knee arthroplasty. Two reviewers independently evaluated the content of PROMs based on established ICF linking rules.

RESULTS

From 449 studies included in this review, 50 PROMs were identified. The mobility chapter of activities and participation was the most common component, followed by the sensory function and pain chapter of body function and structure. The most frequent ICF activity and participation categories were d451 going up and down stairs, d4701 using private motorized transportation, d4104 standing, and d4154 maintaining a standing position. However, 11 ICF categories of the modified OA core set were not captured in any PROMs. This ICF-based content analysis of PROMs revealed that included activity and participation categories vary widely, with little overlap among PROMs. The Knee Injury and Osteoarthritis Outcome Score and the Hip Disability and Osteoarthritis Outcome Score had the most coverage for activity and participation (36.7%).

CONCLUSION

Even though our search identified 50 specific PROMs, there remain gaps in content related to activity and participation coverage. By providing a content analysis of the PROMs used after hip or knee arthroplasty, this study may help clinicians select PROMs based on covered categories and relevant clinical objectives.

Cognitive interviewing validation of the Chinese version of the neurogenic bladder symptom score

Background

The neurogenic bladder symptom score (NBSS) has been widely used to specifically measure symptoms and consequences of neurogenic bladder (NB). The cognitive interviewing (CI) is effective in assessing item clarity and identifying key issues related to the comprehension of the instrument. We aim to translate the NBSS into Chinese and use the CI approach to explore the thought processes of patients with NB in responding the Chinese Version of the NBSS, identify and modify the factors hinder the thought processes to enhance the face validity of the NBSS.

Methods

The translation of the NBSS into Chinese was conducted with the guidance of the recommended frameworks. Patients with NB were recruited by purpose sampling. CI with the combination of thinking aloud and verbal probing techniques were used to explore thought processes. The interviews were transcribed and analyzed based on Tourangeau four-stage response model.

Results

Two rounds of CI were carried out. The problems of comprehension, judgement and response mapping were identified in 8 items. Four items were revised based on the results of the interview. The revised items were verified and eventually integrated into the final version.

Conclusion

The Chinese Version of the NBSS was easy to comprehend and use. The use of CI methodologies can increase the comprehensibility and cultural applicability of the NBSS, providing the evidence for the development of a clearer and more appropriate questionnaire.

The Validity and Responsiveness of the Patient-Specific Functional Scale in Patients With First Carpometacarpal Osteoarthritis

PURPOSE

The purpose of this study was to assess the content, construct, and discriminative validity and responsiveness of the Patient-Specific Functional Scale (PSFS) in patients with thumb carpometacarpal arthritis.

METHODS

Data were collected at Xpert Clinics, comprising 34 outpatient hand surgery and hand therapy clinics in the Netherlands. We included 267 patients for content validity and 323 patients for construct validity and responsiveness. The PSFS items were classified into the International Classification of Function Core Set for Hand Conditions to assess content validity. We used hypothesis testing to investigate the construct validity and responsiveness. The Michigan Hand Outcomes Questionnaire was used as a comparator instrument. The standardized response mean was calculated to evaluate the magnitude of change. For discriminative validity, we used independent t tests to discriminate between satisfied and dissatisfied patients.

RESULTS

We classified 98% of the PSFS items in the International Classification of Function "activities" and "participation" domains, indicating good content validity. Two of six hypotheses for construct validity and three of six hypotheses for responsiveness were confirmed. The standardized response mean for the PSFS was 0.57 (0.46-0.68) and 0.47 (0.35-0.58) for the Michigan Hand Outcomes Questionnaire total score. The mean PSFS score showed good discriminative validity because it could distinguish between satisfied and dissatisfied patients at the 3-month follow-up.

CONCLUSIONS

The PSFS scores showed good content and discriminative validity in patients with first carpometacarpal arthritis. Hypothesis testing for responsiveness and construct validity indicates that the PSFS measures a unique construct different from the Michigan Hand Outcomes Questionnaire.

CLINICAL RELEVANCE

The PSFS may be a useful scale for measuring the patient-specific status of individuals with thumb carpometacarpal arthritis.

Development and content validation of a questionnaire identifying patients' functional priorities and abilities after hip or knee arthroplasty

PURPOSE

To develop a self-report questionnaire evaluating functional priorities after hip or knee arthroplasty and evaluate patients' understanding of its items and conceptual relevance.

METHODS

A self-report questionnaire was first developed based on the International Classification of Functioning, Disability, and Health (ICF) core set for osteoarthritis (OA). In the second stage, two research physiotherapists thoroughly reviewed and refined the questionnaire, and another physiotherapist conducted cognitive think-aloud interviews with 18 patients to assess the face and content validity of the questionnaire.

RESULTS

All categories and corresponding activities of ICF core set for OA were used to develop the questionnaire. Several questionnaire issues were identified and addressed. Most challenges were related to comprehension, followed by item ordering and visual elements. Patients identified ambiguous wording which we subsequently simplified. Ten activities of the core set were excluded due to lack of face validity, two activities were added, and four activities were modified.

CONCLUSION

The findings suggest that the ICF core set for OA needs to be adjusted for patients undergoing hip or knee arthroplasty and highlight the feasibility of applying a modified core set to assess functional priorities after hip or knee arthroplasty.

Role of the health literacy assessment in healthcare: Content validation of "Health Literacy Behaviour" nursing outcome

PURPOSE

To validate the content of the "Health Literacy Behaviour" nursing outcome (NO).

METHODS

A content validation study was conducted during 2022. Each indicator was included in the NO, and its response levels were operationally defined. The initial version of each indicator and its response levels were refined and validated through the Delphi method. A panel of health literacy (HL) and nursing taxonomies experts evaluated the content through two content validity indicators. The content validity of the NO and each index was determined by calculating the content validity index (CVI). A qualitative analysis of the recommendations provided by the experts was carried out to improve the understanding of the indicators and their levels.

FINDINGS

A total of 108 experts participated in this study. Mostly females with more than 10 years of professional experience. The results demonstrated a high CVI of the indicators and the NO "Health Literacy Behaviour." All indicators achieved excellent (CVI ≥ 0.80) relevance and clarity. The CVI universal average method (CVI-p) of the NO achieved an excellent result of 0.90.

CONCLUSIONS

The indicators included in the NO "Health Literacy Behaviour" have content validity.

IMPLICATIONS FOR NURSING PRACTICE

These findings provide evidence-based indicators to measure the patient's actions to obtain, process, and understand information about health and disease, interact with the health system, and make informed health decisions. The validation of this NO would identify populations with low HL, allowing the health of this community to be promoted. Health literacy should be a priority objective of health management and policies.

Content analysis of the Measure of the Quality of the Environment by linkage with the International Classification of Functioning, Disability and Health

BACKGROUND

This study explores the linkage between the Measurement of Environmental Quality (MQE) and the International Classification of Functioning, Disability, and Health (ICF). Stemming from the Human Development Model-Disability Creation Process (HDM-DCP), MQE enhances understanding of how environmental quality impacts disability development across diverse socio-cultural contexts. Integrating MQE with ICF expands the perspective on disability formation beyond HDM-DCP, encompassing ICF's functioning approach.

OBJECTIVE

To link the MQE with the concepts and categories of the ICF.

METHODS

Two health professionals with adequate taxonomic knowledge of the ICF performed the initial linkage, which was based on updated standardized rules considering all hierarchical levels of the ICF. Linkage agreement between the first two assessors was measured using the Kappa (k) coefficient and respective 95% confidence intervals. In the absence of a consensus between the two assessors (k > 0.60), a third assessor was consulted to make the arbitrary decision of the final categories linked to the MQE.

RESULTS

Insufficient agreement between the two assessors was found for the linkage process (k = 0.52; p < 0.001), requiring the final decision from the third assessor. At the end of the process, 26 ICF categories were linked to the main concepts (MC) measured by the 26 items of the short version of the MQE. Ten ICF categories were linked to the additional concepts (AC) measured by the MQE. Moreover, the MQE addresses the five domains of the ICF component "environmental factors," with a predominance of the "services, systems and policies" domain (MC = 45.8% and AC = 40%).

CONCLUSION

The linkage of the concepts measured by the MQE to ICF categories enabled mapping the content of the MQE, identifying it as a promising tool for measuring environmental factors in accordance with ICF percepts.

Multicentre cross-sectional study assessing content validity of the International Classification of Functioning, disability and health core set for post-acute musculoskeletal conditions in primary care physiotherapy services

OBJECTIVE

To assess content validity of the comprehensive International Classification of Functioning, Disability and Health (ICF) Core Set for post-acute musculoskeletal conditions in primary care physiotherapy services.

DESIGN

Multicentre cross-sectional study.

SUBJECTS

Patients with musculoskeletal disorders referred to primary care physiotherapy services.

METHODS

Structured interviews were conducted using categories from the ICF Core Set, and their relevance was assessed using a visual analogue scale. An ICF category had to represent a problem for at least 5% of the sample in order to be validated.

RESULTS

The study sample comprised 274 patients. All categories in the ICF Core Set were confirmed. Body functions related to pain and movement were the most commonly impaired, with ICF categories "b280 Sensation of pain" and "b710 Mobility of joint functions" having the highest prevalence (87.2% and 84.7%, respectively). Activity limitations and participation restrictions were concentrated in chapters "d4 Mobility" (63.5% for "d430 Lifting and carrying objects") and "d2 General tasks and demands" (59.5% for "d240 Handling stress and other psychological demands"). The most relevant environmental factors were "e225 Climate" (55.8%) and "e580 Health services, systems and policies" (39.4%).

CONCLUSION

The ICF Core Set for post-acute musculoskeletal conditions shows appropriate content validity for primary care physiotherapy services.

A Sensibility Assessment of the Job Demands and Accommodation Planning Tool (JDAPT): A Tool to Help Workers with an Episodic Disability Plan Workplace Support

Purpose Sensibility refers to a tool's comprehensiveness, understandability, relevance, feasibility, and length. It is used in the early development phase to begin assessing a new tool or intervention. This study examined the sensibility of the job demands and accommodation planning tool (JDAPT). The JDAPT identifies job demands related to physical, cognitive, interpersonal, and working conditions to better target strategies for workplace supports and accommodations aimed at assisting individuals with chronic health conditions. Methods Workers with a chronic health condition and workplace representatives were recruited from health charities, workplaces, and newsletters using convenience sampling. Cognitive interviews assessed the JDAPT's sensibility. A 70% endorsement rate was the minimum level of acceptability for sensibility concepts. A short screening tool also was administered, and answers compared to the complete JDAPT. Results Participants were 46 workers and 23 organizational representatives (n = 69). Endorsements highly exceeded the 70% cut-off for understandability, relevance, and length. Congruence between screening questions and the complete JDAPT suggested both workers and organizational representatives overlooked job demands when completing the screener. Participants provided additional examples and three new items to improve comprehensiveness. The JDAPT was rated highly relevant and useful, although not always easy to complete for someone with an episodic condition. Conclusions This study highlights the need for tools that facilitate accommodations for workers with episodic disabilities and provides early evidence for the sensibility of the JDAPT.

Development and psychometric testing of a clinical reasoning rubric based on the nursing process

BACKGROUND

To facilitate the development of clinical reasoning skills in nursing students, educators must possess the ability to teach and evaluate them. This study aimed to describe the development and validation process of an analytic rubric of clinical reasoning skills based on the nursing process in undergraduate nursing students.

METHODS

A seven-step method was used for rubric development. The initial validation process of the rubric of clinical reasoning was performed with the participation of key stakeholders to assess its face and content validity as well as applicability in the classroom and bedside. An initial pilot test was performed based on scenario-based examinations in the nursing process training course so that convergent validity was used to show how closely the new scale is related to the previous measure for evaluating students' tasks. Internal consistency and inter-rater correlation coefficient measurement for reliability were assessed.

RESULTS

The rubric to assess clinical reasoning skills was developed into eight categories according to the five stages of the nursing process. Content and face validity of the rubric were done qualitatively and resulted in a clear, simple rubric relevant to clinical reasoning skills assessment. The convergent validity was confirmed by the conventional method. The reliability was approved by a high inter-rater correlation coefficient based on the assessment by two random independent raters.

CONCLUSION

The clinical reasoning meta-rubric developed in this study meets the purpose of the study. This analytical rubric can be applied to guide teaching and learning as well as evaluate clinical reasoning based on the findings. Testing the applicability confirmed its validity and reliability for assessing clinical reasoning skills in nursing process education during the undergraduate nursing program.

Ataxia Rating Scales: Content Analysis by Linking to the International Classification of Functioning, Disability and Health

Ataxia management is mainly based on rehabilitation, symptomatic management, and functional improvement. Therefore, it is important to comprehensively assess ataxic symptoms and their impact on function. Recently, the movement disorders society recommended four generic ataxia rating scales: scale for assessment and rating of ataxia (SARA), international cooperative ataxia rating scales, Friedreich's ataxia rating scale (FARS), and unified multiple system atrophy rating scale (UMSARS). The aim of the study was to analyze and compare the content of the recommended ataxia rating scales by linking them to the international classification of functioning, disability and health (ICF). A total of 125 meaningful concepts from 93 items of the four included scales were linked to 57 different ICF categories. The ICF categories were distributed in body structure (n = 8), body function (n = 26), activity and participation (n = 20), and environmental factors (n = 3) components. UMSARS and FARS were the only ones that have addressed the body structure or environmental factors component. The content analysis of ataxia rating scales would help clinicians and researchers select the most appropriate scale and understand ataxic symptoms and their impact on function. It seems that SARA is the optimal scale for rapid assessment of ataxia or in busy clinical settings. UMSARS or FARS are more appropriate for the investigating the impact of ataxia on overall health, and monitoring ataxia progression and disability.

Capturing Meaningful Outcomes in -Pediatric Neurology: Further Reflections on Principles, Challenges, and Opportunities

Patient and public involvement in health care is considered indispensable in the way we conduct daily pediatric neurology practice, and in the development and utilization of health outcome measurements. This essay examines what meaningful quality evaluations and measurements are, describes the development of approaches to measuring health and outcomes, explores the potential applications of patient-reported outcome measures in pediatric neurology, and identifies opportunities and challenges in using patient-reported outcome measurements in our daily clinical practice. Recent developments have transformed our attitude on how to help children with neurological and developmental conditions and their families: specifically, (1) the recognition of the fundamental rights of children with disabilities; (2) the application of the framework of the International Classification of Functioning, Disability and Health by the World Health Organization that views health from the perspective of both biopsychosocial strengths and functional abilities; (3) the application of qualitative research methodologies to children with neurological conditions and their caregivers to elucidate what they consider essential for their own good health and well-being; and (4) the development of core outcome measurements sets for children and adults with various neurological and developmental conditions. In summary, supporting patients in their role as full partners in clinical care and research enables them to contribute their experiential knowledge and helps ensure that results are relevant and address patient needs, preferences, and priorities. Recognizing the importance of involving young people in their health management decisions has become central in contemporary medicine and needs to be part of the curriculum of all health care professionals.

Development and validation of the ND10 to measure neck-related functional disability

BACKGROUND

Previous neck-specific patient-reported outcome measures (PROMs) have tended to measure both symptoms and disability. This multi-staged study developed and evaluated a neck-specific PROM focusing on functional disability.

METHODS

This study integrated findings from systematic reviews on neck-specific outcome measures, patient interviews, qualitative studies on neck disability, and iterative item testing to develop a 10-item measure of neck-related disability (ND10). Content validity was assessed by classifying items using the International Classification of Functioning, Disability and Health (ICF) and perspective linking. Patients (n = 78) with neck pain completed cognitive interviews, exploring items of the Neck Disability Index (NDI) and ND10, and completed structured questions related to literacy and relevance. Test-retest reliability and internal consistency were evaluated using intraclass correlation coefficients, Bland Altman graphs, and Cronbach's alpha. Concurrent convergent validity was evaluated by comparing the ND10 to the NDI, Single Assessment Numeric Evaluation (SANE), and Disabilities of the Arm, Shoulder and Hand (DASH). Known group validity was determined by comparing ND10 scores from patients, who rated their neck as more or less than 1/2 of "normal" on the SANE, using t-tests.

RESULTS

The ND10 requires respondents to make rational judgements about their neck-related body function and disability. It has high internal consistency (0.94) and re-test reliability (0.87; SEM = 3.2/100; MDC = 7.5); and no re-test bias (mean re-test difference of 0.6). It followed expected correlation patterns, being highly correlated with related multi-item PROMs (r = 0.85-0.91), and moderately correlated to the single-item SANE. More patients agreed that the ND10 was easily readable than did so for the NDI (84% vs 68%; p < 0.05). All the PROMs distinguished the patients who perceived themselves as being abnormal/normal defined by a dichotomized SANE (p < 0.01).

CONCLUSION

The ND10 is reliable and valid for measuring neck-related functional disability. Longitudinal and cross-cultural translation studies are needed to support future use.

Assessing the content based on ICF and quality based on COSMIN criteria of patient-reported outcome measures of functioning in breast cancer survivors: a systematic review

PURPOSE

To identify currently used patient-reported outcome measures (PROMs) to evaluate disability in breast cancer survivors (BC) and critically evaluate their content and measurement properties.

METHODS

Four electronic databases (PubMed, EMBASE, CINAHL, Scopus and Google Scholar) were searched from 2001 to February 2021. PRISMA guidelines were followed. The content of the included PROM was evaluated by linking the items of the questionnaires to the International Classification of Functioning, Disability and Health (ICF) Core Set for BC using standard linking rules. Methodological quality and measurement properties were assessed using the COSMIN checklist. Qualitative synthesis was used to summarize the evidence on content validity and measurement properties. The overall quality of evidence on each measurement property was provided using GRADE principles.

RESULTS

Ten eligible studies reported measurement properties of seven PROMs. The content of included PROMs mostly focused on disability (70% of items), and less on body function and structure (23%) or environmental factors (6%). There was high linkage to The Comprehensive Core Set for BC, Q-DASH (100%), UEFI (95%) and DASH (92%). The Core Set Unique Disability Representation for DASH, and WHODAS2 was 39% and BCSQ-BC, Lymph-ICF was 34%. BCSQ-BC, and Lymph-ICF represented 32, and 20% of the content of the Core Set for BC, respectively, however, the other questionnaires covered less than 20% of the content of the Core Set. High quality of evidence supports sufficient results for internal consistency, testretest, and measurement error for BCSQ-BC, Lymph-ICF, DASH and WHODAS2.

CONCLUSIONS

Despite a lack of evidence on all-important clinical measurement, two generic (DASH and WHODAS2) and two disease-specific (BCSQ-BC, Lymph-ICF) PROM demonstrated emerging evidence of adequate measurement properties. The stronger alignment of the BCSQ-BC to the breast cancer ICF core set makes it preferable is a disease-specific measure. The Lymph-ICF is recommended where lymphedema is a specific focus. The DASH and WHODAS2 might be most useful where patients with a variety of upper extremity conditions, including breast cancer survivors, are being evaluated in the clinic or research study.