Understanding the certainty of evidence from systematic reviews in rehabilitation science: what do clinicians need to know about GRADE?

PURPOSE: Systematic reviews of interventions are published each year evaluating rehabilitation approaches such as exercise, manual therapy, or electrotherapy. Currently, important methodological approaches are available to make systematic reviews more robust and transparent. One of these approaches is the Grading of Recommendation, Assessment, Development, and Evaluation (GRADE) system. MATERIAL AND METHODS: A perspective for rehabilitation was conducted aiming to (1) shed light on the meaning and relevance of the GRADE system in systematic reviews with meta-analysis of rehabilitation science, and (2) propose suggestions for helping clinicians improve the interpretation of the GRADE findings. RESULTS: The meaning and relevance of GRADE in rehabilitation science was discussed. Suggestions were proposed to help clinicians in the interpretation of the GRADE findings. We discussed the use of meta-analyses, meta-regressions, subgroups meta-analyses, and sensitivity analyses to increase the objectivity of the domains of GRADE. Finally, a future agenda was provided. CONCLUSION: The use of GRADE is essential for improving the synthesis of evidence that clinicians may often use in rehabilitation practice. However, GRADE is only one hallmark when the findings of systematic reviews are interpreted. The issues of sample size, futile research, pre-registration, switching outcomes, or narrative bias should be also considered.

Grading of Recommendation, Assessment, Development, and Evaluation (GRADE) is helpful in systematic reviews for understanding the certainty of evidence is analyzed.GRADE could detect limitation in the certainty of evidence helping clinicians to choose the best therapeutic option for their patients.Some domains of GRADE (indirectness and inconsistency) are particularly useful for clinicians who aim to translate the conclusions of a synthesis of evidence into clinical practice.

Spiritual well-being, faith, meaning in life, peace, and purpose in life for cancer-related fatigue: systematic review with meta-analysis and meta-regressions.

BACKGROUND: Cancer-related fatigue is associated with spiritual distress. Spiritual well-being, characterized by the presence of factors such as meaning in life or purpose in life, seems to play an important role in the management of symptoms of cancer. Currently, the number of studies evaluating the association between cancer-related fatigue and spiritual well-being is increasing and no systematic review has been conducted. AIM: To summarize the association between cancer-related fatigue and spiritual well-being, faith, meaning in life, peace, and purpose in life. DESIGN: A systematic review with meta-analysis. DATA SOURCES: The CINAHL, Embase, PsycINFO, and PubMed databases were searched from inception to 9 October 2023. We considered studies evaluating the cross-sectional or longitudinal association between cancer-related fatigue and the spiritual factors above mentioned. The Joanna Briggs Institute Checklist for Analytical Cross-Sectional Studies and the Quality in Prognosis Studies tool assessed the methodological quality of cross-sectional and longitudinal studies, respectively. The Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) system rated the certainty of evidence. Meta-analyses, meta-regressions, subgroup meta-analyses, and sensitivity analyses were conducted. RESULTS: A total of 13 studies were included and no longitudinal findings were found. One meta-analysis showed that cancer-related fatigue may be negatively correlated with spiritual well-being (r = - 0.37 (95%CI - 0.44 to - 0.28) p < 0.01). In addition, another meta-analysis found the correlation between cancer-related fatigue and faith was not statistically significant (r = - 0.25 (95%CI - 0.66 to 0.28) p = 0.36). CONCLUSIONS: Cancer-related fatigue may be correlated with spiritual well-being. However, the certainty of evidence was very low across the meta-analyzed outcomes. IMPLICATIONS FOR CANCER SURVIVORS: A negative correlation was observed between spiritual well-being and cancer-related fatigue.

How can clinicians enhance self-efficacy beliefs in osteoarthritis? An overview of systematic reviews with meta-analysis.

This overview of reviews aimed to synthesize the effectiveness of non-pharmacological approaches to enhance self-efficacy in people with osteoarthritis. The CINAHL, Embase, PsycINFO, PubMed, SPORTDiscus, and the Cochrane Library databases were searched from inception to December 2023. We considered systematic reviews with meta-analysis of randomized clinical trials evaluating any non-pharmacological intervention. We used AMSTAR 2 to assess the methodological quality of reviews. The overlap between reviews was calculated. We included eight systematic reviews with meta-analysis evaluating 30 different clinical trials. Overall, mind-body exercises, psychological interventions, and self-management strategies may improve arthritis self-efficacy. Specifically, the meta-analyses showed tai chi exercises, coping skills training, and the arthritis self-management program are more effective than controls to enhance arthritis self-efficacy in people with hip and/or knee osteoarthritis. In addition, inconsistent results were detected across meta-analyses regarding the effectiveness of multidisciplinary interventions. Finally, the degree of overlap between all reviews was moderate (CCA = 6%) and many included reviews reported most of the items of AMSTAR 2. Tai chi exercises, coping skills training, and the arthritis self-management program may be beneficial for enhancing arthritis self-efficacy. Open Science Framework Registration: https://doi.org/10.17605/OSF.IO/VX2T6 .

Exercise or mind-body exercises for psychiatry symptoms and quality of life in schizophrenia spectrum and other psychotic disorders: an overview of systematic reviews with meta-analysis.

PURPOSE: This overview of systematic reviews with meta-analysis aimed to summarize the effects of exercise, regular physical activity, and mind-body exercises on negative symptoms, depression symptoms, and quality of life in schizophrenia spectrum and other psychotic disorders. MATERIAL AND METHODS: The CINAHL, Embase, PubMed, SPORTDiscus, and the Cochrane Library databases were searched up to November 10, 2023. AMSTAR 2 was used and the overlap between reviews was calculated. RESULTS: Eighteen reviews were included. No reviews meta-analyzed regular physical activity. Aerobic exercise may be more effective than yoga, treatment-as-usual, or multiple controls for reducing negative symptoms. Tai chi may be more effective than multiple controls for decreasing negative symptoms. Aerobic exercise or multimodal exercise programs may be more effective than multiple controls for reducing depression symptoms. Yoga may be more effective than waitlist for decreasing depression symptoms. Aerobic exercise may be more effective than multiple controls for improving quality of life. Yoga may be more effective than treatment-as-usual for improving quality of life. The rest of the meta-analyses found no differences between groups or combined different types of interventions in their meta-analyses. CONCLUSIONS: Despite these results, important methodological concerns were detected that precluded us from making sound clinical recommendations. PROTOCOL REGISTRATION: https://doi.org/10.17605/OSF.IO/7V5QZ.

This overview of reviews evaluates exercise and mind-body exercise for schizophrenia and other psychotic disorders.Aerobic exercise or tai chi may reduce negative symptoms in these psychiatric disorders.Yoga may reduce depression symptoms and improve quality of life in these psychiatric disorders.

Online pain neuroscience education and graded exposure to movement in breast cancer survivors: protocol of a randomized controlled trial.

Introduction: Cancer-related chronic pain is an important sequelae that damages the quality of life of breast cancer survivors. Pain neuroscience education and graded exposure to movement are therapeutic tools that have been shown to be effective in the management of chronic pain in other populations. However, there are no previous studies that combine them after breast cancer. Objective: To evaluate the effectiveness of an online physiotherapy focused-person program which combines pain neuroscience education and graded exposure to movement for quality of life improvement in breast cancer survivors. Methodology: This protocol is a randomized controlled trial with a sample size of 40 breast cancer survivors with pain in the last 6 months. Participants will be allocated to the experimental or control group using a fixed size block randomization method. The evaluator and statistician will be blinded to participant allocation. Participants in the experimental group will receive a 12-week intervention based on pain neuroscience education and therapeutic yoga as a graded exposure to movement exercise; participants in the control group will continue with their usual cancer-related symptoms care. Both groups will receive an education booklet. The main outcome will be quality of life, measured by the Functional Assessment of Cancer Therapy - Breast (FACT-B+4); secondary, four outcomes related to pain experience (catastrophising, self-efficacy, kinesiophobia and fear-avoidance behaviors) will be also assessed. All variables will be assessed by two blinded evaluators at four timepoints. A mixed-model analyses of variance ANOVA (2 × 4) will be used to study the effects of the treatment on the dependent variables. All statistical tests will be performed considering a confidence interval of 95%. SPSS program will be used for the data analysis. Discussion: This research is expected to contribute to breast cancer rehabilitation field. The proposed intervention is also expected to improve self-care skills related to chronic pain and to empower women regarding the management of their symptoms and quality of life.Clinical trial registration: https://clinicaltrials.gov/, NCT04965909.

The prevalence of burnout in oncology professionals: an overview of systematic reviews with meta-analyses including more than 90 distinct studies.

PURPOSE: This overview of reviews aimed to summarize the prevalence of burnout and the dimensions of burnout (emotional exhaustion, depersonalization, and personal accomplishment) in oncology professionals around the world. METHODS: The CINAHL, Embase, PsycINFO, and PubMed databases were searched from inception to September 13, 2023. AMSTAR 2 was used to assess the quality of reviews. The overlap between reviews was calculated. RESULTS: Twelve reviews were included. Overall, reviews showed that burnout was prevalent in oncologists and oncology nurses. On the other hand, no reviews meta-analyzed the prevalence of burnout in oncology radiation therapists. In addition, the dimensions of burnout, high emotional exhaustion, high depersonalization, and low personal accomplishment were highly prevalent across reviews in oncologists, oncology nurses, and oncology radiation therapists. In oncologists, the Americas (specifically Canada) showed the highest prevalence rates for high emotional exhaustion, whereas high depersonalization and low personal accomplishment were mainly prevalent in Europe and Asia, respectively. In oncology nurses, high emotional exhaustion and high depersonalization were mainly prevalent in Asia, whereas low personal accomplishment was more prevalent in the Americas (specifically Canada). The prevalence of overall levels of burnout was not meta-analyzed by continents. CONCLUSION: Some methodological improvements may help to make more robust the findings of this overview (e.g., specific subgroup meta-analyses by oncology specialties), which may help readers reach more precise, direct, and consistent findings. PROTOCOL REGISTRATION: https://doi.org/10.17605/OSF.IO/QPWG5 .

The prevalence of anxiety and depression in cancer around the world: An overview of systematic reviews evaluating 128 meta-analyses.

BACKGROUND: This overview of systematic reviews with meta-analysis summarized the prevalence of anxiety and depression in different types of tumors around the world. METHODS: The quality of reviews was assessed. The degree of overlap between reviews was calculated. The regional prevalence of anxiety and depression was shown in the main text based on the World Health Organization regions. RESULTS: Twenty-five reviews including 128 meta-analyses of interest were selected. The pooled prevalence of anxiety in breast tumors was in Africa (19 %), the Americas (38 %), Eastern Mediterranean (56 %), Europe (38 %), South-East Asia (42 %), and Western Pacific (26 %). The pooled prevalence of depression in breast tumors was in Africa (40 %), the Americas (23-25 %), Eastern Mediterranean (49-51 %), Europe (27-29 %), South-East Asia (23-33 %), Western Pacific (29 %). The pooled prevalence of depression in digestive tumors was in the Americas (4-44 %), Eastern Mediterranean (42 %), Europe (20-27 %), South-East Asia (66 %), and Western Pacific (24-40 %). The pooled national prevalence of anxiety and depression was mainly evaluated in China and Iran. LIMITATIONS: Important methodological issues were identified. For example, no reviews judged the certainty of evidence. CONCLUSIONS: The Eastern Mediterranean region showed the highest prevalence of anxiety and depression for breast tumors. The South-East Asian region showed the highest prevalence of depression for digestive tumors. In these regions, many countries are considered low-income and middle-income countries. Further research funding would help increase the investigation on this topic, which may allow the development of preventive strategies that reduce the prevalence of anxiety and depression.

Multimodal exercise programs may improve posttraumatic stress disorders symptoms and quality of life in adults with PTSD: An overview of systematic reviews with meta-analysis.

OBJECTIVE: This overview of reviews aimed to summarize the effectiveness of exercise, regular physical activity or mind-body exercises on posttraumatic stress disorder (PTSD) symptoms and comorbidities associated with PTSD (e.g. depression symptoms) among individuals without age, gender, race, ethnicity or setting restrictions. DATA SOURCES: The CINAHL, Embase, PubMed and SPORTDiscus databases were searched from inception to November 16, 2023. REVIEW METHODS: Systematic reviews with meta-analysis of randomized clinical trials evaluating exercise, regular physical activity or mind-body exercises were considered. Control groups and outcome measures were not restricted. AMSTAR 2 assessed the methodological quality of reviews. The overlap between reviews was calculated. RESULTS: A total of 14 systematic reviews were included meta-analyzing 23 distinct randomized clinical trials. There was a very high overlap between reviews (corrected covered area = 16%). PTSD symptoms, depression symptoms, anxiety symptoms, sleep quality, substance abuse and quality of life were meta-analyzed. No reviews meta-analyzed the effects of regular physical activity. Overall, the meta-analyses found multicomponent exercise programs may have positive results in reducing PTSD symptoms and improving quality of life. In addition, the results of yoga were inconsistent across the meta-analyses for PTSD symptoms, and no differences between groups were found in favor of yoga for depression symptoms. Finally, no specific conclusions could be made about anxiety symptoms, sleep quality and substance abuse. CONCLUSION: A multicomponent exercise program may be effective in improving PTSD symptoms and quality of life, whereas yoga may be ineffective for depression symptoms in adults with PTSD.

Acceptance and Commitment Therapy for Chronic Pain: An Overview of Systematic Reviews with Meta-Analysis of Randomized Clinical Trials.

This overview of reviews aimed to summarize the evidence from systematic reviews and meta-analyses of randomized clinical trials of the efficacy of acceptance and commitment therapy (ACT) for adults with chronic pain in relation to pain intensity, pain-related functioning, quality of life, and psychological factors. The Cumulative Index of Nursing and Allied Health Literature (CINAHL), Embase, PsycINFO, PubMed, and the Cochrane Library databases were searched from inception to July 2, 2023. AMSTAR 2 was used to assess the methodological quality of systematic reviews. The overlap among reviews was calculated. Nine reviews comprising 84 meta-analyses of interest were included. At post-treatment, some meta-analyses mainly showed that ACT can reduce depression symptoms, anxiety symptoms, psychological inflexibility, and pain catastrophizing; and can improve mindfulness, pain acceptance, and psychological flexibility. At three-month follow-up, ACT can reduce depression symptoms and psychological inflexibility, as well as improve pain-related functioning and psychological flexibility. At six-month follow-up, ACT can improve mindfulness, pain-related functioning, pain acceptance, psychological flexibility, and quality of life. At six-twelve-month follow-up, ACT can reduce pain catastrophizing and can improve pain-related functioning. Some methodological and clinical issues are identified in the reviews, such as a very high overlap between systematic reviews, the fact that the certainty of the evidence is often not rated and specific details needed to replicate the interventions reviewed are often not reported. Overall, however, randomized clinical trials and systematic reviews show that ACT can improve outcomes related to chronic pain (eg, pain-related functioning). Future systematic reviews should address the methodological and clinical concerns identified here to produce higher-quality findings. PERSPECTIVE: Despite certain methodological and clinical issues, randomized clinical trials and systematic reviews of ACT appear to show that it can improve outcomes related to chronic pain (eg, psychological factors).

No effects were found in favor of Hatha or Iyengar yoga exercises for improving cancer-related fatigue, depression symptoms, or quality of life: a systematic review with meta-analysis and metaregression.

OBJECTIVE: To summarize the evidence on the effectiveness of Hatha or Iyengar yoga exercises on cancer-related fatigue, depression symptoms, and the overall quality of life in adults with cancer. METHODS: A systematic review with meta-analysis was conducted. The CINAHL (via EBSCOhost), Embase, PubMed, and SPORTDiscus (via EBSCOhost) databases were searched from inception to 7th November 2022. Clinical trials evaluating cancer-related fatigue, depression symptoms, and the overall quality of life were included. The risk of bias was assessed using the Cochrane Risk of Bias tool 2. The Template for Intervention Description and Replication (TIDieR) checklist was used to check if the interventions reviewed were described in detail to be implemented in the clinical setting. The Grading of Recommendations, Assessment, Development, and Evaluations approach was used to rate the certainty of evidence. Meta-regressions, sensitivity analyses, and subgroup meta-analyses were conducted to explore sources of heterogeneity. RESULTS: Eleven studies were included (N = 777 participants). Overall, Hatha, Iyengar, and the combination of both yoga styles did not improve any of the outcomes of interest. In addition, five studies had a high risk of bias, and six studies had some concerns about biases. Weaknesses in reporting modifications during the development of the study were observed (TIDieR item 10). The certainty of evidence ranged from low to very low across the outcomes. CONCLUSIONS: We could not make sound clinical recommendations with the current quality of the findings.

Psychological and spiritual interventions to enhance meaning in adults diagnosed with cancer: a systematic review with meta-analysis and meta-regression.

OBJECTIVE: To summarize the evidence on the effectiveness that psychological and/or spiritual interventions may have to change the levels of meaning, measured with the Functional Assessment of Chronic Illness Therapy-Spiritual Well-Being Scale (FACIT-Sp), in adults diagnosed with cancer. METHODS: Systematic review with meta-analysis and meta-regression. CINAHL (via EBSCOhost), Embase, PubMed, PsycINFO (via ProQuest), and the Cochrane Library were searched from inception to 21st October 2022. Manual searches were conducted. Only randomized clinical trials (RCTs) were included. The risk of bias was assessed with the Cochrane Risk of Bias tool 2. The Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) approach was used to judge the certainty of the evidence. RESULTS: Eight RCTs were included (N = 1682). Although some individual studies showed positive effects to enhance meaning using mindfulness or dignity therapy, the overall and individual meta-analyses showed a lack of effect of psychological and spiritual interventions in comparison to comparator interventions (MD (95%CI) = -0.19 (-0.45 to 0.06), p = 0.11, Tau2 = 0.0015, I2 = 2%). Publication bias was undetected (Egger's test = 0.35). Furthermore, no RCTs were judged to have a low risk of bias and the overall certainty of the evidence was judged as low. Meta-regression and subgroups meta-analyses also found possible sources of heterogeneity such as some cancer characteristics, the educational stage, or the religious affiliation. CONCLUSIONS: Despite some RCTs may show promising results following mindfulness or dignity therapy, no effects were observed in the meta-analysis. Moreover, important methodological and clinical concerns precluded us to make sound clinical recommendations with the available evidence. OPEN SCIENCE FRAMEWORK DOI REGISTRATION: https://doi.org/10.17605/OSF.IO/4YMTK .

Effectiveness of mind-body exercises in chronic respiratory diseases: an overview of systematic reviews with meta-analyses.

PURPOSE: To gather evidence on the effectiveness and safety of qigong, tai chi, and yoga to modulate symptoms associated with chronic respiratory diseases. METHODS: A search of systematic reviews was conducted in CINHAL, Embase, PubMed, PsycINFO, SPORTDiscus, and the Cochrane Library from inception to November 2022. Systematic reviews with meta-analyses investigating physical and psychological measures were eligible. The methodological quality of systematic reviews (AMSTAR-2), the spin of information in abstracts, and the overlap of primary studies were explored. RESULTS: Twenty-seven systematic reviews involving 37 000 participants, 146 studies, and 150 meta-analyses were included. Reviews investigated asthma (n = 4) and chronic obstructive pulmonary disease (COPD) (n = 23). Most reviews discussed their findings without considering the risk of bias of primary studies. The overlap ranged between slight (5%) and very high (35%). Yoga was better than control interventions to improve symptoms related with asthma. In adults with COPD, qigong improved dyspnoea, exercise endurance, lung function, and quality of life, while tai chi and yoga increased exercise endurance. CONCLUSIONS: The impact of yoga on symptoms associated with asthma varied depending on the lung function parameter and the control group. Qigong, tai chi, and yoga could be effective to improve COPD-related symptoms, especially exercise endurance.IMPLICATIONS FOR REHABILITATIONQigong, tai chi, and yoga could be effective to improve symptoms associated with chronic obstructive pulmonary disease.Mind-body exercises promote self-care management and can be individually tailored.Due to no adverse effects, these interventions can be endorsed for rehabilitation as they appear to yield benefits.

Yoga-based interventions may reduce anxiety symptoms in anxiety disorders and depression symptoms in depressive disorders: a systematic review with meta-analysis and meta-regression.

OBJECTIVE: To summarise the effect of mind-body exercises on anxiety and depression symptoms in adults with anxiety or depressive disorders. DESIGN: Systematic review with meta-analysis and meta-regression. DATA SOURCES: Five electronic databases were searched from inception to July 2022. Manual searches were conducted to explore clinical trial protocols, secondary analyses of clinical trials and related systematic reviews. ELIGIBILITY CRITERIA: Randomised clinical trials evaluating qigong, tai chi or yoga styles with anxiety or depression symptoms as the outcomes were included. No intervention, waitlist or active controls were considered as control groups. The risk of bias and the certainty of the evidence were assessed. Meta-analyses, meta-regressions and sensitivity analyses were performed. RESULTS: 23 studies, comprising 22 different samples (n=1420), were included. Overall, meta-analyses showed yoga interventions were superior to controls in reducing anxiety symptoms in anxiety disorders. Furthermore, yoga-based interventions decreased depression symptoms in depressive disorders after conducting sensitivity analyses. No differences between groups were found in the rest of the comparisons. However, the certainty of the evidence was judged as very low for all outcomes due to concerns of high risk of bias, indirectness of the evidence, inconsistency and imprecision of the results. In addition, there was marked heterogeneity among yoga-based interventions and self-reported tools used to evaluate the outcomes of interest. CONCLUSION: Although yoga-based interventions may help to improve mental health in adults diagnosed with anxiety or depressive disorders, methodological improvements are needed to advance the quality of clinical trials in this field. PROSPERO REGISTRATION NUMBER: CRD42022347673.

A Call for Improving Research on Pain Neuroscience Education and Chronic Pain: An Overview of Systematic Reviews.

OBJECTIVE: We aimed to summarize the evidence of the effects of pain neuroscience education delivered alone or combined with other interventions for chronic pain. DESIGN: An overview of systematic reviews with meta-analysis. LITERATURE SEARCH: CINAHL (via EBSCOhost), Embase, PsycINFO (via ProQuest), PubMed, and the Cochrane Library were searched from their inception to November 14, 2022. STUDY SELECTION CRITERIA: Systematic reviews (SRs) with meta-analyses including randomized clinical trials. The outcomes were pain and psychological symptoms. DATA SYNTHESIS: AMSTAR 2 assessed the methodological quality of SRs. The primary study overlap was evaluated by calculating the corrected covered area (CCA). RESULTS: We included 8 SRs including 30 meta-analyses of interest that comprised 28 distinct clinical trials. In some meta-analyses, pain neuroscience education delivered alone or combined with other interventions was more effective than control interventions for reducing pain intensity, pain catastrophizing, kinesiophobia, anxiety symptoms, and depression symptoms at some time points. However, other meta-analyses found a lack of effects of pain neuroscience education, and there were inconsistencies between meta-analyses covering the same outcome. The methodological quality of all SRs was critically low. The overlap, including all SRs, was high (CCA = 13%), and very high for SRs covering trials on chronic low back pain (CCA = 40%), chronic spine pain (CCA = 27%), and fibromyalgia (CCA = 25%). CONCLUSION: It is impossible to make clear clinical recommendations for delivering pain neuroscience education based on current meta-analyses. Action is needed to increase and improve the quality of SRs in the field of pain neuroscience education. J Orthop Sports Phys Ther 2023;53(6):1-16. Epub: 10 May 2023. doi:10.2519/jospt.2023.11833.

Rehabilitation in Patients Diagnosed with Arthrogryposis Multiplex Congenita: A Systematic Review.

Arthrogryposis multiplex congenita is a condition characterised by contractures and deformity in two or more body areas. Physiotherapy may be an appropriate treatment. The aim was to systematically review the evidence for rehabilitation in arthrogryposis multiplex congenita. A systematic review was performed following the PRISMA 2020 criteria. The search was conducted in PubMed, ScienceDirect, Scielo, Scopus, Web of Science, ENFISPO, JSTOR, Google Scholar, ProQuest, Cochrane Library and PEDro from inception until October 2022. To assess the methodological quality, we used the different aspects of the critical appraisal tool JBI. We included 14 studies (6 case reports, 5 case series, 2 cross-sectional and 1 qualitative study). Sample sizes ranged from 1 to 50 participants, with an age range between 11 days and 35 years. Most studies employed multicomponent therapy, mainly kinesitherapy, massage therapy, use of physical agents and stretching, some combined it with orthopaedic therapy, or it was complementary to surgical treatment. The key to improving the clinical picture was early and individualised care, tailored to the characteristics of the patients. Regarding methodological quality, the main conflicts encountered were in the reporting of participant characteristics and experimental interventions. Rehabilitation provides satisfactory results in the treatment of arthrogryposis multiplex congenita. More scientific production and randomised clinical trials are needed.

Dropout Rate of Participants in Randomized Clinical Trials That Use Virtual Reality to Train Balance and Gait in Parkinson's Disease. A Systematic Review With Meta-analysis and Meta-regression.

Virtual reality is an effective system to train balance and gait in Parkinson's disease, but attrition of this intervention needs to be further examined. This study aims to review and meta-analyze the dropouts of participants in randomized clinical trials that used virtual reality for balance and gait training in people with Parkinson's disease. An electronic search was conducted in PubMed, Web of Science, Scopus and CINAHL. The PEDro scale and Revised Cochrane risk-of-bias tool for randomized trials 2.0 were employed to assess methodological quality. Proportions meta-analysis calculated dropout rate. Odds ratio meta-analysis under 1 indicated lower attrition in experimental participants. Meta-regression identified possible dropouts' moderators. A total of 18 studies were included. The pooled dropout rates were 5.6% (95% CI, 3.3%-9.3%) for all groups, 5.33% (95% CI, 3.03%-9.21%) in virtual reality, and 6.60% (95% CI, 3.84%-26.31%) in comparators. No statistical differences were found in the dropout occurred between the groups (OR 0.83; 95% CI, 0.62-1.12). Number of weeks was the unique moderator (coefficient 0.129, 95% CI 0.018- 0.239; p=0.02). Our overall pooled dropout should be considered in the sample size calculation of future studies. Adequate follow-up of the CONSORT guidelines in the loss report and their reasons could help design suitable retention strategies.

Meaning and purpose in life, happiness, and life satisfaction in cancer: Systematic review with meta-analysis.

OBJECTIVE: To summarize current evidence on the potential cross-sectional and longitudinal association between meaning or purpose in life and subjective happiness or life satisfaction among cancer patients. METHODS: A systematic review with meta-analysis and meta-regression was conducted. CINAHL (via EBSCOhost), Embase, PubMed, and PsycINFO (via ProQuest) were searched from inception to 31 December 2022. In addition, manual searches were performed. The risk of bias in cross-sectional and longitudinal studies was assessed using the Joanna Briggs Institute Checklist for Analytical Cross-Sectional Studies and the Quality in Prognosis Studies tool, respectively. Certainty in the evidence was judged using the Grading of Recommendations, Assessment, Development, and Evaluations approach. Meta-regressions and sensitivity analyses were performed to explore potential sources of heterogeneity. RESULTS: We included 13 cross-sectional studies, comprising 12 different samples, and a longitudinal study. A total of 4968 individuals with cancer were interviewed across included studies. Certainty in the evidence was judged as very low for all outcomes, which was associated to serious concerns on risk of bias and imprecision of the results, and very serious concerns on indirectness of evidence. The assessed studies showed a marked heterogeneity in terms of participants' clinical (i.e., disease stage) and sociodemographic factors. A lack of reporting of these clinical and sociodemographic aspects were also evident among included studies. CONCLUSIONS: The wide number of methodological flaws detected in this systematic review preclude to make any clinical recommendation. More rigorous high-quality observational studies should guide future research on this topic.

Use of Iontophoresis with Corticosteroid in Carpal Tunnel Syndrome: Systematic Review and Meta-Analysis.

BACKGROUND: Carpal tunnel syndrome is a neuropathy that affects the median nerve. The aim of this review is to synthesize the evidence and perform a meta-analysis on the effects of iontophoresis in people with carpal tunnel syndrome. METHODS: The search was carried out using PubMed, Web of Science, Scopus, CINHAL Complete, Physiotherapy Evidence Database, and SciELO. The methodological quality was evaluated using PEDro. A standardized or mean difference meta-analysis (Hedge's g) using a random-effects model was calculated. RESULTS: Seven randomized clinical trials using iontophoresis for electrophysiological, pain, and functional outcomes were included. The mean of PEDro was 7/10. No statistical differences were obtained for the median sensory nerve conduction velocity (SMD = -0.89; p = 0.27) or latency (SMD = -0.04; p = 0.81), motor nerve conduction velocity (SMD = -0.04; p = 0.88) or latency (SMD = -0.01; p = 0.78), pain intensity (MD = 0.34; p = 0.59), handgrip strength (MD = -0.97; p = 0.09), or pinch strength (SMD = -2.05; p = 0.06). Iontophoresis only seemed to be superior in sensory amplitude (SMD = 0.53; p = 0.01). CONCLUSIONS: Iontophoresis did not obtain an enhanced improvement compared to other interventions, but no clear recommendations could be made due to the limited number of included studies and the heterogeneity found in the assessment and intervention protocols. Further research is needed to draw sound conclusions.