Outcomes in adults with cerebral palsy: systematic review using the International Classification of Functioning, Disability and Health

Assessing the Adequacy of the Physical, Social, and Attitudinal Environment to the Specific Needs of Young Adults With Cerebral Palsy: The European Adult Environment Questionnaire

OBJECTIVES

To present the development of the European Adult Environment Questionnaire (EAEQ), to assess to what extent it covers the International Classification of Functioning, Disability and Health (ICF), and to describe the adequacy of the physical, social, and attitudinal environment to the specific needs of young adults with cerebral palsy (CP).

DESIGN

Cross-sectional.

SETTING

Administrative regions in France, Germany, Italy, Portugal, and Sweden.

PARTICIPANTS

Young adults with CP (N=357), with varying severity profiles, aged 19-28 years at time of interview (2018-20).

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURE(S)

Physical, social, and attitudinal environment unmet needs.

RESULTS

Relevant environmental factors (EFs) for young adults with CP were identified during focus groups in England and Portugal. EFs were mapped to the ICF environmental classification and the EAEQ analytical structure resulted from this linking procedure. It comprised 61 items, linked to 31 ICF environmental classification categories, and covered 4 of its 5 chapters. Content validity assessed with the bandwidth index (percentage coverage of ICF Core Sets for adults with CP) was satisfactory (79.3%). A descriptive analysis was carried out. Participants had a mean age of 24 years, 56% were men, 38% had severely limited mobility. Less than 16% reported unmet needs for EFs relating to home, college/work/day placement, and communication in the Products and technology chapter. Unmet needs were higher (>20%) for the other items in the Public use and Land development categories. Social support, attitudes, and understanding of relatives were often adequate to the participants' needs. The proportion of unmet needs varied by sex (women were more often concerned) and raised with increasing gross motor impairment.

CONCLUSION

The EAEQ describes in detail the adequacy of the environment to the specific needs of young adults with CP. Its ICF-based structure opens up possibilities for use in a universal conceptual framework.

Participation measures that evaluate attendance and involvement for young people aged 15 to 25 years with cerebral palsy: a systematic review

PURPOSE

To identify participation-focused measures used for young people with cerebral palsy (CP), evaluate their psychometric evidence, and map item content to the International Classification of Functioning, Disability, and Health (ICF), and family of Participation-Related Constructs (fPRC) frameworks.

METHODS

Four databases (PubMed, Embase, Web of Science, CINAHL) were searched for papers that involved young people with CP aged 15 to 25 years and reported original data from a participation measure. Each measure was examined for validity, reliability, responsiveness (using the COSMIN checklist), clinical utility, the inclusion of accessible design features, self- and/or proxy-report from people with communication support needs, and item content according to ICF and fPRC.

RESULTS

Of 895 papers, 80 were included for review. From these, 26 measures were identified. Seven measures (27 papers/resources) were participation-focused, capable of producing a score for participation Attendance and/or Involvement. Of these, all measured Attendance (n = 7) but fewer than half measured Involvement (n = 3). Few included studies (37%) reported including some self-report of people with communication support needs.

CONCLUSIONS

Participation measures for young people with CP are evolving but require more: (i) emphasis on measurement of involvement; (ii) investigation of psychometric properties; and (iii) adaptation to enable self-report by young people with communication support needs.

A bibliometric analysis of cerebral palsy from 2003 to 2022

Purpose

This bibliometric study explores cerebral palsy (CP) research from 2003 to 2022 to reveal the topic hotspots and collaborations.

Methods

We retrieved studies on CP from the Web of Science Core Collection from 2003 to 2022 and then used CiteSpace and Bibliometrix to perform a bibliometric analysis and attain knowledge mapping, including publication outputs, funding, journals, authors, institutions, countries/territories, keywords, collaborative relationships, and topic hotspots.

Results

In total, 8,223 articles were published from 2003 to 2022. During this period, the number of publications increased continuously. Developmental Medicine and Child Neurology was the most productive and frequently co-cited journal. Boyd was the most productive and influential author, with 143 publications and 4,011 citations. The United States and Vrije Universiteit Amsterdam were the most productive countries and institutions, respectively. Researchers and institutions from the USA, Australia, and Canada constituted the core research forces, with extensive collaborations worldwide. The most common keywords were gait (553), rehabilitation (440), spasticity (325), botulinum toxin (174), therapy (148), upper extremity (141), quality of life (140), disability (115), pain (98), electromyography (97), kinematics (90), balance (88), participation (85), and walking (79).

Conclusion

This study provides a systematic and comprehensive analysis of the CP-related literature. It reveals that Developmental Medicine and Child Neurology is the most active journal in this field. The USA, Vrije Universiteit Amsterdam, and Boyd are the top countries, institutions, and authors, respectively. Emerging treatment methods, complication management, and functional recovery comprise the future research directions and potential topic hotspots for CP.

Differences in participation between young adults with cerebral palsy and their peers: A cross-sectional multicentre European study

BACKGROUND

Children and adolescents with disabilities are known to participate less in most areas of life than their non-disabled peers.

OBJECTIVES

(1) To estimate differences in participation between young adults with cerebral palsy (CP) and their non-disabled peers; (2) to test the mediating role of financial difficulties and student status; (3) to test the moderating role of personal factors on participation difference; and (4) to test the moderating role of impairment.

METHODS

A cross-sectional study was conducted in young adults [19-28 years] with CP (n = 228) and non-disabled peers (n = 2861) in France, Germany and Sweden. Participation was assessed using the Questionnaire of Young People's Participation adapted for young adults (QYPP-YA). Differences in five domains of participation were estimated using structural equation modeling with WLSMV method and bias-corrected bootstrap confidence intervals.

RESULTS

Young adults with CP showed lower participation than others in all domains, with the largest difference in the "intimate relationships" domain (β = 1.71 bcCI95[1.46; 1.95]). Student status mediated the difference in "intimate relationships", "interpersonal relationships" and "independence". Women showed greater differences than men on "independence". Impairments moderated difference in participation. The less severely impaired young adults showed no difference with their non-CP peers in "interpersonal relationships", "social life" and "independence", but made autonomous everyday decisions more often than their peers.

CONCLUSIONS

Young adults with CP do not have the same opportunities to attain the participation level of non-CP people of the same age. Continuance of education could help to reduce participation difference in "interpersonal relationships" and "independence".

The first step in developing an International Classification of Functioning, Disability and Health Core Set for Vision Loss: A systematic review

AIM

As a first step in developing an International Classification of Functioning, Disability and Health (ICF) Core Set for adults with vision loss, this systematic review sought to identify the researchers' perspective by identifying the most often used outcome measures and research topics obtained from studies on adults with vision loss.

METHODS

PubMed, Embase, CINAHL, APA PsycINFO and Web of Science were searched for studies on vision loss. Meaningful outcome measures and research topics were linked to the ICF components: environmental factors, body functions, body structures and the Activities and Participation life domains.

RESULTS

After deduplication, 7219 records remained, of which 2328 articles were eligible for further review. For feasibility reasons, approximately 20% were randomly chosen from every publication year, resulting in 446 included articles. After full-text reading, 349 articles remained, describing 753 outcome measures based on questionnaires and 2771 additional research topics that could be linked to the ICF. Most were linked to the component Activities and Participation, with a focus on recreation and leisure activities (ICF code d920, 70%), reading (d166, 34%) and driving (d475, 27%). For the component body function, seeing functions (b210, 83%) were most often reported. Outcome measures and research topics were least often linked to the body structure component and environmental factors.

CONCLUSION

The broad range of ICF categories identified in this systematic review represents the variety of functioning typical for adults with vision loss. These results reflect the focus of researchers over the past 21 years by using various vision-related outcomes. In our next steps to develop the ICF Core Set for Vision Loss, we will include perspectives of experts and lived experience.

Cognitive Functioning and Assessment in Adults with Cerebral Palsy: A Scoping Review

In this scoping review, we summarize the current knowledge of cognitive functioning in adults with cerebral palsy (CP), and identify the neuropsychological tests typically used in this population. 39 studies from the period January 1990 - August 2023 were included in the review, and they differ widely in their aims and approach to studying cognition. Very few studies have cognitive assessment as their core aim and use a neuropsychological test battery. The included studies show great variability in reported intelligence and cognitive functioning in adults with CP, and cognitive deficits have been reported in all cognitive domains. Most of the studies suffer from methodological limitations, and there is ample room for improvement within the field. We conclude by suggesting a number of recommendations that may contribute to increasing our understanding of cognitive impairments in adults with CP.

Does exercise affect quality of life and participation of adolescents and adults with cerebral palsy: a systematic review

PURPOSE

Investigate the effect of exercise for adults with cerebral palsy (CP) on quality of life, participation (attendance and involvement in life situations), functional mobility, pain, fatigue, mood, and self-efficacy.

METHODS

A systematic review was completed. Twelve databases were searched from inception to August 2022 for studies including participants (≥16 years) with cerebral palsy, and that evaluated an exercise intervention. Two reviewers independently assessed eligibility, risk of bias, and extracted data.

RESULTS

Seventeen studies (total n = 532) were included: 12 randomised control trials, four non-randomised trials, and one single case experimental design. Interventions studied were predominantly strength, aerobic or treadmill training, dance, and swimming. No study assessed participation, pain or mood. Of two studies that assessed quality of life, one reported a positive effect on an aspect of mental health immediately after the programme finished. All studies assessed functional mobility, but only one reported a positive effect. One study assessed self-efficacy and found no effect, and another assessed fatigue and reported conflicting results.

CONCLUSIONS

The effect of exercise for adults with CP, on outcomes that adults report as important to them - quality of life, participation, pain, mood, and fatigue - are unknown.IMPLICATIONS FOR REHABILITATIONTo address outcomes important to adults with cerebral palsy (CP), it is important to understand how exercise affects participation and quality of life.All modes of exercise reviewed appear safe for adults with CP and choice should be based on the client's preferences, access to services, and convenience.Addressing any needed accommodations in the environment and context is likely more important than exercise prescription parameters when tailoring exercise to meet the needs of adults with CP and sustain participation.

Mapping the focus of research conducted with adults with cerebral palsy: an overview of systematic reviews

PURPOSE

To map research conducted with adults with cerebral palsy (CP) to the International Classification of Functioning, Disability and Health (ICF) to understand the array of research available, identify key clinical messages and inform future research.

MATERIALS AND METHODS

An overview of systematic reviews was conducted. Comprehensive searches (to December 2021) were conducted in PsycINFO, Web of Science, MEDLINE, CINAHL, Cochrane, JBI, and EMBASE. Eligible studies were systematic reviews that included primary studies of adults with CP. Included reviews were assessed for study quality and mapped to the ICF components and chapters. A narrative synthesis of commonly reported outcomes within the component/s and chapter/s was conducted.

RESULTS

All 24 included reviews were published since 2010. Thirteen focused on body functions: movement related functions and cardiovascular and respiratory systems. Although nine reviews focused on gait and mobility, considerable overlap of included studies limited the volume of evidence and variability in review quality limited generalisability of findings.

CONCLUSIONS

Research involving adults with CP is growing; however, this overview of reviews found a predominant focus on mobility and gait. Future research, informed by consumer priorities, is needed to address a broader range of key health and participation outcomes.Implications for rehabilitationFitness, mobility, and gait were the most common research topics found in these systematic reviews suggesting a narrow research focus in adults with CP.There are significant gaps in our knowledge to inform clinical messages for practice about broad long-term outcomes of CP and how best to support their activity performance and participation.There is very limited evidence with which to guide and support rehabilitation professionals working in this field.

ICF Core Sets for the assessment of functioning of adults with cerebral palsy

AIM

To report on the results of the online international consensus process to develop the comprehensive and brief International Classification of Functioning, Disability and Health (ICF) Core Sets for adults with cerebral palsy (CP).

METHOD

An online iterative decision-making and consensus process involved 25 experts, including clinicians and researchers working with adults with CP, an adult with CP, and the parents of adults with CP from all six regions of the World Health Organization. The most relevant categories were selected from a list of 154 unique second-level candidate categories to develop the ICF Core Sets for adults with CP. This list resulted from evidence gathered during four preparatory studies, that is, a systematic literature review, a qualitative study, an expert survey, and an empirical study.

RESULTS

The consensus process resulted in the comprehensive ICF Core Set containing 120 second-level ICF categories: 33 body functions; eight body structures; 50 activities and participation; and 29 environmental factors, from which the most essential categories, 33 in total, were selected for the brief ICF Core Set. For body functions, most of the categories were mental functions and neuromusculoskeletal and movement-related functions. Body structures were mostly related to movement. All the chapters of the activities and participation component were represented, with mobility and self-care as the most frequently covered chapters. For environmental factors, most of the categories addressed products and technology and services, systems, and policies.

INTERPRETATION

The comprehensive and brief ICF Core Sets for adults with CP were created using a new online version of an established ICF Core Set consensus process. These Core Sets complement the age-specific ICF Core Sets for children and young people with CP and will promote standardized data collection worldwide.

Development of an ICF Core Set for adults with cerebral palsy: capturing their perspective on functioning

AIM

To examine the most relevant aspects of functioning of adults with cerebral palsy (CP) from their perspective, in order to develop an International Classification of Functioning, Disability and Health (ICF) Core Set for adults with CP.

METHOD

We conducted six focus group discussions with adults with CP without intellectual disability and seven interviews with adults with CP with intellectual disability and caregivers, addressing all ICF components. Meaningful concepts were identified from verbatim transcripts and linked to ICF categories by two independent researchers.

RESULTS

In total, 31 adults with CP without intellectual disability (mean [SD] age 46y 1mo [14y 1mo]; 20 females, 11 males; Gross Motor Function Classification System [GMFCS] levels I-IV) and seven adults with CP and intellectual disability (mean [SD] age 25y 8mo [6y 8mo]; four females, three males; GMFCS levels III-V) participated. We identified 132 unique second-level categories: 47 body functions, seven body structures, 43 activities and participation, and 35 environmental factors. The most frequently mentioned categories were emotional function, pain, muscle tone function, support of family, products and technology, and health services.

INTERPRETATION

Adults with CP experienced problems in a broad range of body functions and activities and indicated the importance of environmental factors for functioning. The identified categories will be added to the list of candidate items to reach consensus on an ICF Core Set for adults with CP. What this paper adds Including the lived experience is crucial for fully understanding functioning of adults with cerebral palsy (CP). Adults with CP perceive environmental factors as essential elements for everyday functioning. Adults with intellectual disability should be considered as a group with specific problems.

Blood pressure in adults with cerebral palsy: a systematic review and meta-analysis of individual participant data

Objectives:

This systematic review and meta-analysis was designed to determine the overall mean blood pressure and prevalence of hypertension among a representative sample of adults living with cerebral palsy by combining individual participant data. Additional objectives included estimating variations between subgroups and investigating potential risk factors for hypertension.

Methods:

Potential datasets were identified by literature searches for studies published between January 2000 and November 2017 and by experts in the field. Samples of adults with cerebral palsy (n ≥ 10, age ≥ 18 years) were included if blood pressure data, cerebral palsy-related factors (e.g. cerebral palsy subtype), and sociodemographic variables (e.g. age, sex) were available. Hypertension was defined as at least 140/90 mmHg and/or use of antihypertensive medication.

Results:

We included data from 11 international cohorts representing 444 adults with cerebral palsy [median (IQR) age of the sample was 29.0 (23.0–38.0); 51% men; 89% spastic type; Gross Motor Function Classification System levels I–V]. Overall mean SBP was 124.9 mmHg [95% confidence interval (CI) 121.7–128.1] and overall mean DBP was 79.9 mmHg (95% CI 77.2–82.5). Overall prevalence of hypertension was 28.7% (95% CI 18.8–39.8%). Subgroup analysis indicated higher blood pressure levels or higher prevalence of hypertension in adults with cerebral palsy above 40 years of age, men, those with spastic cerebral palsy or those who lived in Africa. BMI, resting heart rate and alcohol consumption were risk factors that were associated with blood pressure or hypertension.

Conclusion:

Our findings underscore the importance of clinical screening for blood pressure in individuals with cerebral palsy beginning in young adulthood.

Being adults with cerebral palsy: results of a multicenter Italian study on quality of life and participation

Cerebral palsy (CP) is still the most common cause of disability developing in infancy. How such a complex disorder affects adult life raises important questions on the critical issues to consider and the most appropriate care pathway right from early childhood. We conducted a multicenter study on a sample of 109 individuals with CP followed up from infancy and recalled for an assessment at ages ranging between 18 and 50 years (mean age 26 years). Semi-structured interviews and specific questionnaires (SF36, LIFE-H and Hollingshead Index) were conducted to assess general psychological state, quality of life, and socio-economic conditions. Our findings showed a globally positive perception of quality of life, albeit with lower scores for physical than for mental health. Our cases generally showed good scores on participation scales, though those with more severe forms scored lower on parameters such as mobility, autonomy, and self-care. These findings were investigated in more depth in interviews, in which our participants painted a picture showing that gradual improvements have been made in several aspects over the years, in the academic attainment and employment, for instance. On the downside, our sample reported persistent limitations on autonomy in daily life. As for the more profound psychological domain, there was evidence of suffering due to isolation and relational difficulties in most cases that had not emerged from the questionnaires. Our data have possible implications for the management of CP during childhood, suggesting the need to avoid an exclusive focus on motor function goals, and to promote strategies to facilitate communication, participation, autonomy, and social relations.

Epidemiology of Cerebral Palsy in Adulthood: A Systematic Review and Meta-analysis of the Most Frequently Studied Outcomes

OBJECTIVE

To describe the epidemiology of health status, impairments, activities and participation in adults with cerebral palsy (CP).

DATA SOURCES

Embase, MEDLINE, Web of Science, PsycINFO, Cumulative Index to Nursing and Allied Health, Cochrane, and Google Scholar were searched for 3 themes ("cerebral palsy," "adult," and "outcome assessment") in literature published between January 2000 and December 2018.

STUDY SELECTION

Full-article peer-reviewed English journal articles on descriptive, observational, or experimental studies describing the most studied outcomes in adults with CP (n≥25, age≥18y) were included. Studies were included in the analyses if frequently studied outcomes were described in at least 3 studies using similar methods of assessment.

DATA EXTRACTION

Data were extracted independently by 2 authors from 65 articles (total N=28,429) using a standardized score sheet.

DATA SYNTHESIS

Meta-analyses revealed that overall, on average 65.1% (95% confidence interval [CI], 55.1-74.5) of adults with CP experienced pain, 57.9% (95% CI, 51.1-64.6) were ambulant, 65.5% (95% CI, 61.2-69.7) had little or no limitation in manual ability, 18.2% (95% CI, 10.6-27.2) had tertiary education, 39.2% (95% CI, 31.5;47.1) were employed, and 29.3% (95% CI, 9.0-55.3) lived independently. In adults without intellectual disability, proportions of individuals who were ambulant (72.6% [95% CI, 58.8-84.5]) and lived independently (90.0% [95% CI, 83.8-94.9]) were higher (P=.014 and P<.01, respectively). The Fatigue Severity Scale score was 4.1 (95% CI, 3.8-4.4). Epilepsy (28.8% [95% CI, 20.1-38.4]) and asthma (28.3% [95% CI, 18.7-38.9]) were especially prevalent comorbidities.

CONCLUSIONS

The present systematic review and meta-analysis on the epidemiology of adults with CP provided state-of-the-art knowledge on the most frequently studied outcomes. On average, adults with CP are fatigued, and a majority experience pain, are ambulant, and have little or no difficulty with manual ability. On average, 40% are employed and 30% live independently. More uniformity in assessment and reports is advised to improve knowledge on epidemiology and gain insight in more outcomes.

Pain, fatigue, depressive symptoms and sleep disturbance in young adults with cerebral palsy

PURPOSE

Investigate pain, fatigue, depressive symptoms and sleep disturbance in young adults with cerebral palsy compared to references.

MATERIALS AND METHODS

Young adults with cerebral palsy (n = 97, aged 21-34 years) and age-matched references from the general population (n = 190) rated pain using a numeric rating scale and fatigue, depressive symptoms, sleep disturbance and global health using Patient-Reported Outcomes Measurement Information System® short forms. Scores were compared between cerebral palsy subgroups and the reference population. Correlation coefficients and linear regression analyses assessed interrelationships of health issues and associations with global health.

RESULTS

Individuals with Gross Motor Function Classification System level I had less pain, fatigue and depressive symptoms, while individuals with levels II and III-V had more pain (53% and 56%, p < 0.001) and those with levels III-V more fatigue (39%, p = 0.035) than references (pain: 26%, fatigue: 14%). Pain and fatigue were more interrelated (correlation coefficients: 0.71 vs. 0.41) and stronger associated with global mental health in individuals with cerebral palsy.

CONCLUSIONS

Young adults with Gross Motor Function Classification System levels II-V report more pain and those with levels III-V report more fatigue than references. Pain and fatigue are highly interrelated and specifically relate to mental health in individuals with cerebral palsy.Implications for rehabilitationExcept for those in the highest level of motor function, young adults with cerebral palsy report higher levels of pain and fatigue compared to the general population of the same age.Pain and fatigue are strongly interrelated and associated with mental health in young adults with cerebral palsy.The present study recommends to monitor pain and fatigue in young adults with cerebral palsy with low levels of gross motor function.We advise rehabilitation professionals to consider combined treatment for both pain and fatigue.