OUTCOME MEASURES

成果措施
  • 文章类型: Journal Article
    背景:成骨不全症(OI)是一组以骨骼脆性为特征的不同严重程度的遗传性结缔组织疾病。这项国际多学科合作倡议的主要目标是就一套标准化的临床医生和患者报告的结果衡量标准达成共识。以及用于OI患者牙科护理的相关测量仪器,基于专家和患者都认为重要的方面。该项目是由Care4BrittleBones基金会发起的Key4OI项目的后续项目,该项目旨在开发一套标准的结果指标,涵盖影响OI患者生活质量的众多因素。由正畸医生组成的国际专家团队,儿科牙医,口腔和颌面外科医生,和假牙医生使用改良的Delphi共识程序选择临床医生报告的结果指标(CROM)和患者报告的结果指标(PROM),以评估OI患者的口腔健康。通过文献综述和专业知识(CROM和PROM)确定了重要领域。在三个有OI的人的焦点小组中,确定了有关牙齿健康的重要和相关问题。焦点小组的投入被用作最终一套成果衡量标准的基础:选定的问题归因于相关的CROM,在适当的时候,与经过验证的问卷相匹配,以确定最终的PROM,这些PROM最好地代表了OI患者与口腔健康相关的特定问题。
    结果:在选定的CROM和PROM上就OI患者口腔健康的一套标准结果测量和测量工具达成共识。
    结论:我们的项目导致了OI患者口腔健康PROM和CROM标准化的共识声明。该结果集可以通过纳入参与OI患者牙科护理的专业人员的建议来提高护理标准。Further,它可以促进研究和国际研究合作。此外,焦点小组的重要贡献突出了OI患者的牙齿和口腔健康相关问题的相关性.
    BACKGROUND: Osteogenesis imperfecta (OI) is a group of inherited connective tissue disorders of varying severity characterized by bone fragility. The primary objective of this international multidisciplinary collaboration initiative was to reach a consensus for a standardized set of clinician and patient-reported outcome measures, as well as associated measuring instruments for dental care of individuals with OI, based on the aspects considered important by both experts and patients. This project is a subsequent to the Key4OI project initiated by the Care4BrittleBones foundation which aims to develop a standard set of outcome measures covering a large domain of factors affecting quality of life for people with OI. An international team of experts comprising orthodontists, pediatric dentists, oral and maxillofacial surgeons, and prosthetic dentists used a modified Delphi consensus process to select clinician-reported outcome measures (CROMs) and patient-reported outcome measures (PROMs) to evaluate oral health in individuals with OI. Important domains were identified through a literature review and by professional expertise (both CROMs and PROMs). In three focus groups of individuals with OI, important and relevant issues regarding dental health were identified. The input from the focus groups was used as the basis for the final set of outcome measures: the selected issues were attributed to relevant CROMs and, when appropriate, matched with validated questionnaires to establish the final PROMs which represented best the specific oral health-related concerns of individuals with OI.
    RESULTS: Consensus was reached on selected CROMs and PROMs for a standard set of outcome measures and measuring instruments of oral health in individuals with OI.
    CONCLUSIONS: Our project resulted in consensus statements for standardization oral health PROMs and CROMs in individuals with OI. This outcome set can improve the standard of care by incorporating recommendations of professionals involved in dental care of individuals with OI. Further, it can facilitate research and international research co-operation. In addition, the significant contribution of the focus groups highlights the relevance of dental and oral health-related problems of individuals with OI.
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  • 文章类型: Journal Article
    此网络荟萃分析(NMA)的目的是比较各种常用药物在治疗肥厚型心肌病(HCM)患者中的疗效。关于HCM治疗药物的随机对照试验来自PubMed,Embase,科克伦图书馆,和WebofScience(搜索截止日期:2024年1月10日)。使用偏差风险工具进行质量评估,数据分析采用R软件。包括17篇文章(1133例HCM患者)。NMA表明,与安慰剂相比,马伐他汀和帕西汀改善了峰值耗氧量(pVO2)。Mavacamten降低N末端B型利钠肽(NT-pro-BNP),左心室质量指数(LVMI),左心房容积指数(LAVI),和间隔E/E比。氯沙坦降低了收缩压,而坎地沙坦,mavacampen,和缬沙坦减少最大壁厚。在增加pVO2和坎地沙坦的最大壁厚方面具有更好的疗效。与安慰剂相比,没有药物显着改善左心室射血分数(LVEF)。总之,根据目前的研究,常用药物可以有效改善HCM患者的一些预后措施,而新药mavacamten在除LVEF外的大多数其他结局指标中显示出显着的治疗效果。
    The aim of this network meta-analysis was to compare the efficacy of various commonly used drugs in treating patients with hypertrophic cardiomyopathy (HCM). Randomized controlled trials on drugs for HCM treatment were retrieved from PubMed, Embase, Cochrane Library, and Web of Science (search cutoff: January 10, 2024). Quality assessment was performed using the risk of bias tool, and data analysis used R software. Seventeen studies (1,133 patients with HCM) were included. The network meta-analysis indicated that mavacamten and perhexiline improved peak oxygen consumption compared with placebo. Mavacamten reduced N-terminal pro-B-type natriuretic peptide, left ventricular mass index, left atrial volume index, and septal E/e\' ratio. Losartan decreased systolic blood pressure, whereas candesartan, mavacamten, and valsartan reduced maximum wall thickness. Perhexiline had better efficacy in increasing peak oxygen consumption, and candesartan in reducing maximum wall thickness. No drug significantly improved left ventricular ejection fraction compared with placebo. In conclusion, on the basis of current studies, commonly used drugs may effectively improve some of the outcome measures in patients with HCM, whereas the novel drug mavacamten showed significant therapeutic effects in most of the remaining outcome measures except for left ventricular ejection fraction.
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  • 文章类型: Journal Article
    目的:确定临床环境中常用的体能测量是否可以区分跌倒和非跌倒,并预测患有痴呆症的老年人的跌倒。
    方法:系统评价和荟萃分析。
    方法:居住在社区的老年痴呆症患者,医院,和住宅护理设施。
    方法:MEDLINE,Embase,PsycINFO,CINAHL,SPORTDiscus,Cochrane图书馆,和PEDro数据库从开始到2023年12月27日进行搜索(PROSPERO注册号:CRD42022303670)。回顾性或前瞻性研究评估了老年人痴呆症的身体表现指标与跌倒之间的关系。随机效应模型用于计算跌倒者和非跌倒者之间每个身体表现指标的标准化平均差(SMD)和95%CI。对纵向研究进行了敏感性分析,以确定物理性能指标预测未来跌倒的能力。
    结果:本综述纳入28项研究(n=3542)。5次椅台试验[SMD=0.23(0.01,0.45)],Berg平衡量表[SMD=-0.52(-0.87,-0.17)],站在地板上[SMD=0.25(0.07,0.43)]和泡沫表面[SMD=0.45(0.25,0.66)]时的姿势摇摆,短物理性能电池总分[SMD=-0.46(-0.66,-0.27)]可以区分跌倒者和非跌倒者。敏感性分析表明,在纵向队列研究中,步态速度可以预测未来的跌倒[SMD=-0.29(-0.49,-0.08)]。亚组分析显示,步态速度[SMD=-0.21(-0.38,-0.05)]和TimedUpandGo测试[SMD=0.54(0.16,0.92)]可以识别留在住宅护理设施或医院的跌倒者。
    结论:5次椅子站立测试,伯格平衡量表,站在地板和泡沫表面上时的姿势摇摆,短体能电池可用于预测老年痴呆症患者的跌倒。步态速度和TimedUpandGo测试可用于预测住院的老年痴呆症患者的跌倒。建议临床医生使用这些身体表现指标来评估患有痴呆症的老年人的跌倒风险。
    OBJECTIVE: To determine whether physical performance measures commonly used in clinical settings can discriminate fallers from nonfallers and predict falls in older adults with dementia.
    METHODS: Systematic review and meta-analysis.
    METHODS: Older adults with dementia residing in the community, hospitals, and residential care facilities.
    METHODS: MEDLINE, Embase, PsycINFO, CINAHL, SPORTDiscus, the Cochrane Library, and the PEDro databases were searched from inception until December 27, 2023 (PROSPERO registration number: CRD42022303670). Retrospective or prospective studies that evaluated the associations between physical performance measures and falls in older adults with dementia were included. A random effects model was used to calculate the standardized mean difference (SMD) and 95% CI for each physical performance measure between fallers and nonfallers. Sensitivity analyses were conducted on the longitudinal studies to determine the ability of physical performance measures to predict future falls.
    RESULTS: Twenty-eight studies were included in this review (n = 3542). The 5-time chair stand test [SMD = 0.23 (0.01, 0.45)], the Berg Balance Scale [SMD = -0.52 (-0.87, -0.17)], postural sway when standing on the floor [SMD = 0.25 (0.07, 0.43)] and on a foam surface [SMD = 0.45 (0.25, 0.66)], and the Short Physical Performance Battery total score [SMD = -0.46 (-0.66, -0.27)] could discriminate fallers from nonfallers. Sensitivity analyses showed that gait speed could predict future falls in longitudinal cohort studies [SMD = -0.29 (-0.49, -0.08)]. Subgroup analyses showed that gait speed [SMD = -0.21 (-0.38, -0.05)] and the Timed Up and Go test [SMD = 0.54 (0.16, 0.92)] could identify fallers staying in residential care facilities or hospitals.
    CONCLUSIONS: The 5-time chair stand test, the Berg Balance Scale, postural sway when standing on the floor and a foam surface, and the Short Physical Performance Battery can be used to predict falls in older adults with dementia. Gait speed and the Timed Up and Go test can be used to predict falls in institutionalized older adults with dementia. Clinicians are recommended to use these physical performance measures to assess fall risk in older adults with dementia.
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  • 文章类型: English Abstract
    这项研究评估了随机对照试验(RCT)中涉及补肾活血法治疗膝骨关节炎(KOA)的结局指标的状况,旨在为开发中医药治疗KOA的一套核心疗效指标奠定理论基础。相关文章检索自CNKI,万方,VIP,SinoMed,PubMed,EMBase,科克伦图书馆,和WebofScience,除了ClinicalTrials.gov和中国临床试验注册中心,从成立到2023年8月的时间间隔。纳入补肾活血法治疗KOA的RCT。两名评估人员独立进行文献筛选,数据收集,并进行定性分析,编制结果测量结果。共包括350项RCT,涉及165个结局指标,总频率为1462。这些结果测量分为六个领域:症状和体征测量(23),频率为718(49.1%),中医症状和证候测量(3),频率为53(3.6%),体检措施(130项),频率为506项(34.6%),生活质量测量(4),频率为20(1.3%),长期疗效测量(2)频率为6(0.4%),和安全措施(3)的频率为159(10.9%)。此外,53项研究使用中医证候和症状积分作为疗效指标,采用八种不同的测量工具。涉及补肾活血法治疗KOA的RCT存在各种问题,例如结果衡量标准的优先级不明确,测量工具的多样性,缺乏具体措施的标准化评估标准,和非标准化的使用。这些问题影响了研究质量和可靠性。因此,最好借鉴国际专门知识,改进研究设计,并将中医疗效特征与临床研究相结合,建立一套符合中医原则的核心KOA结局指标。
    This study assesses the status of outcome measures in the randomized controlled trial(RCT) involving the kidney-tonif-ying and blood-activating method for treating knee osteoarthritis(KOA), aiming to establish a theoretical foundation for the development of a core set of outcome measures in traditional Chinese medicine(TCM) treatment of KOA. The relevant articles were retrieved from CNKI, Wanfang, VIP, SinoMed, PubMed, EMbase, Cochrane Library, and Web of Science, in addition to ClinicalTrials.gov and the China Clinical Trial Registration Center, with the time interval from inception to August 2023. The RCT of treating KOA with the kidney-tonifying and blood-activating method was included. Two assessors independently conducted literature screening, data collection, and qualitative analysis to compile the outcome measure results. A total of 350 RCTs were included, involving 165 outcome measures with the total frequency of 1 462. These outcome measures were categorized into six domains: symptom and sign measures(23) with the frequency of 718(49.1%), TCM symptom and syndrome measures(3) with the frequency of 53(3.6%), physical examination measures(130) with the frequency of 506(34.6%), quality of life measures(4) with the frequency of 20(1.3%), long-term efficacy measures(2) with the frequency of 6(0.4%), and safety measures(3) with the frequency of 159(10.9%). Additionally, 53 studies used TCM syndrome and symptom scores as indicators of efficacy, employing eight distinct measurement tools. The RCTs involving the kidney-tonifying and blood-activating method for treating KOA had a variety of problems, such as unclear prio-ritization of outcome measures, diversity in measurement tools, absence of standardized assessment criteria for specific measures, and non-standardized usage. These problems affected the research quality and reliability. Hence, it is advisable to draw upon international expertise, improve research design, and merge TCM efficacy characteristics with clinical research to establish a core set of KOA outcome measures aligned with TCM principles.
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  • 文章类型: Editorial
    暂无摘要。
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  • 文章类型: Journal Article
    目标:核心结果集(COS)是一套商定的标准化结果集,应进行衡量和报告,至少,在特定的健康或保健领域。COS是通过共识过程制定的,以确保要衡量的医疗保健结果与决策者相关,包括患者和医疗保健专业人员。在准则制定中使用COS可能会增加准则与这些决策者的相关性。以前的工作已经研究了COS在试验中的吸收,系统评价,健康技术评估和监管指导,但迄今为止,尚未对COS在实践指南开发中的使用进行评估。这项研究的目的是调查一套国际惯例指南中核心结果的代表性。
    方法:我们搜索了与十种高质量COS相关的临床指南(重点是英国,德国,中国,印度,加拿大,丹麦,美国和世界卫生组织)。我们在条件方面匹配了COS和指南之间的范围,人口和结果。我们特别计算了提及或引用COS的指南的比例以及COS域的比例,或者一般来说,与每个指南PICO声明中指定的结果匹配。
    结果:我们发现了38条指南,其中包含170条PICO语句,与10条COS的范围相匹配,并且质量足够,可以进行数据提取。审查的指南均未明确提及或引用相关COS。PICO指南具体或总体涵盖的核心结果比例的中位数(范围)为30%(0%至100%)。
    结论:没有证据表明COS被常规用于指导指南制定过程,并且已发布指南中的结果与COS中的结果之间的一致性有限。在制定临床指南时,需要进一步的工作来探索使用COS的障碍和促进因素。
    OBJECTIVE: A core outcome set (COS) is an agreed standardized set of outcomes that should be measured and reported, as a minimum, in specific areas of health or health care. A COS is developed through a consensus process to ensure health care outcomes to be measured are relevant to decision-makers, including patients and health-care professionals. Use of COS in guideline development is likely to increase the relevance of the guideline to those decision-makers. Previous work has looked at the uptake of COS in trials, systematic reviews, health technology assessments and regulatory guidance but to date there has been no evaluation of the use of COS in practice guideline development. The objective of this study was to investigate the representation of core outcomes in a set of international practice guidelines.
    METHODS: We searched for clinical guidelines relevant to ten high-quality COS (with focus on the United Kingdom, Germany, China, India, Canada, Denmark, United States and World Health Organisation). We matched scope between COS and guideline in terms of condition, population and outcome. We calculated the proportion of guidelines mentioning or referencing COS and the proportion of COS domains specifically, or generally, matching to outcomes specified in each guideline populations, interventions, comparators and outcome (PICO) statement.
    RESULTS: We found 38 guidelines that contained 170 PICO statements matching the scope of the ten COS and of sufficient quality to allow data extraction. None of the guidelines reviewed explicitly mentioned or referenced the relevant COS. The median (range) of the proportion of core outcomes covered either specifically or generally by the guideline PICO was 30% (0%-100%).
    CONCLUSIONS: There is no evidence that COS are being used routinely to inform the guideline development process, and concordance between outcomes in published guidelines and those in COS is limited. Further work is warranted to explore barriers and facilitators in the use of COS when developing clinical guidelines.
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  • 文章类型: Meta-Analysis
    目的:评估截至2023年9月发表的随机对照试验(RCT)中报告的接受商业批准的抗体-药物缀合物(ADC)治疗的患者的患者报告结果。方法:对来自12项随机对照试验的6430例患者进行荟萃分析。结果:从基线到治疗结束和随访结束,组间无明显变化,标准化平均差为-0.08(95%CI:-0.27-0.12)和0.01(95%CI:-0.11-0.12),分别。与非ADC治疗相比,ADC治疗延迟了患者临床状况的恶化,风险比为0.78(95%CI:0.67-0.92)。结论:肿瘤患者ADC与延迟临床恶化具有良好的相关性。
    Purpose: To evaluate the patient-reported outcomes of patients treated with commercially approved antibody-drug conjugates (ADC) reported in randomized controlled trials (RCT) published up to September 2023. Methods: A meta-analysis of 6430 patients from 12 randomized controlled trials was conducted. Results: No significant change was observed between the groups from baseline to end of treatment and end of follow-up, with a standardized mean difference of -0.08 (95% CI: -0.27-0.12) and 0.01 (95% CI: -0.11-0.12), respectively. Treatment with ADCs delayed the deterioration of patients\' clinical condition compared with treatment with non-ADCs, with a hazard ratio of 0.78 (95% CI: 0.67-0.92). Conclusion: ADCs have a good correlation with delay of clinical deterioration in patients with cancer.
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  • 文章类型: Journal Article
    关于综合多维评估方法分析药物治疗慢性鼻-鼻窦炎伴鼻息肉(CRSwNP)的患者内效果的证据很少。我们旨在使用综合评估模型来分析短期口服皮质类固醇(OCS),然后鼻内皮质类固醇喷雾(INCS)治疗严重CRSwNP患者的效果。
    总之,在这项前瞻性单臂研究中,32例重度CRSwNP患者接受了口服甲基强的松龙3周,然后鼻内布地奈德喷雾9周。集成核心结果集(COS)概念的评估模型,纵向评估临床控制和最小临床重要差异(MCID).
    在OCS期间,基线时所有未控制的患者均显示出与基线相似的渐进性改善,并且在核心结果中超过1个MCID反应。在3周时,31例(96.9%)患者的严重CRSwNP得到部分控制,1例(3.1%)患者未得到控制。在随后的INCS期间,14例(43.8%)患者在12周时逐渐恶化到不受控制的状态,而18(56.2%)在12周之前表现出部分控制的CRSwNP。
    在超过一半的患者中,重度CRSwNP在初始OCS治疗后部分得到控制.综合评价模型用于促进对患者内部反应的综合评价,尤其是对相同治疗有不同反应的患者。
    ChiCTR1900024287。
    Little evidence exists regarding an integrated multidimensional evaluation methodology to analyze the within-patient effects of medical treatment for chronic rhinosinusitis with nasal polyps (CRSwNP). We aimed to use an integrated evaluation model to analyze the effects of short-course oral corticosteroid (OCS) followed by intranasal corticosteroid spray (INCS) therapy in patients with severe CRSwNP.
    In all, 32 patients with severe CRSwNP received oral methylprednisolone for three weeks followed by intranasal budesonide spray for nine weeks in this prospective single-arm study. An evaluation model integrating the concepts of the core outcome set (COS), clinical control and minimum clinically important difference (MCID) was longitudinally evaluated.
    All uncontrolled patients at baseline showed similar progressive improvements from baseline and more than 1 MCID response across core outcomes during the OCS period, with severe CRSwNP being partly controlled in 31 (96.9%) patients and uncontrolled in 1 (3.1%) patient at 3 weeks. During the subsequent INCS period, 14 (43.8%) patients gradually deteriorated to an uncontrolled status at 12 weeks, whereas 18 (56.2%) exhibited partly controlled CRSwNP until 12 weeks.
    In more than half of the patients, severe CRSwNP was partly controlled with the initial OCS followed by INCS therapy. An integrated evaluation model was used to facilitate the comprehensive evaluation of within-patient response, especially in patients with different responses to the same treatment.
    ChiCTR1900024287.
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  • 文章类型: Journal Article
    脊髓独立性测量是针对患有脊髓病变(SCL)的个体的综合功能评定量表。
    为了验证SCIMIV的三个分量表的得分,SCIM的第四个版本,使用先进的统计方法。
    多中心队列研究。
    在11个国家有19个SCL单位。
    SCIM开发人员根据专家的意见创建了SCIMIV,在SCIMIV表格中包含了更准确的评分标准定义,并对其进行了调整,以评估特定的条件或情况,SCIMIII,没有地址。专业工作人员评估了648名SCL住院患者,使用SCIMIV和SCIMIII,在接受康复治疗时,在出院时。作者使用Rasch分析检查了SCIMIV子量表得分的有效性和可靠性。
    该研究包括16-87岁的住院患者。SCIMIV子量表得分符合Rasch模型。所有项目感染和大多数项目装备均方指数均低于1.4;统计上不同的能力层次为2.6-6;大多数类别都正确排序;在大多数临床亚组和国家/地区,项目层次结构是稳定的。在一些项目中,然而,我们发现不匹配或类别阈值紊乱。我们发现SCIMIII和SCIMIVRasch属性具有可比性。
    Rasch分析表明,每个SCIMIV子量表的得分都是可靠且有效的。这加强了在临床实践和研究中使用SCIMIV的理由。
    UNASSIGNED: The Spinal Cord Independence Measure is a comprehensive functional rating scale for individuals with spinal cord lesion (SCL).
    UNASSIGNED: To validate the scores of the three subscales of SCIM IV, the fourth version of SCIM, using advanced statistical methods.
    UNASSIGNED: Multi-center cohort study.
    UNASSIGNED: Nineteen SCL units in 11 countries.
    UNASSIGNED: SCIM developers created SCIM IV following comments by experts, included more accurate definitions of scoring criteria in the SCIM IV form, and adjusted it to assess specific conditions or situations that the third version, SCIM III, does not address. Professional staff members assessed 648 SCL inpatients, using SCIM IV and SCIM III, at admission to rehabilitation, and at discharge. The authors examined the validity and reliability of SCIM IV subscale scores using Rasch analysis.
    UNASSIGNED: The study included inpatients aged 16-87 years old. SCIM IV subscale scores fit the Rasch model. All item infit and most item outfit mean-square indices were below 1.4; statistically distinct strata of abilities were 2.6-6; most categories were properly ordered; item hierarchy was stable across most clinical subgroups and countries. In a few items, however, we found misfit or category threshold disordering. We found SCIM III and SCIM IV Rasch properties to be comparable.
    UNASSIGNED: Rasch analysis suggests that the scores of each SCIM IV subscale are reliable and valid. This reinforces the justification for using SCIM IV in clinical practice and research.
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  • 文章类型: Journal Article
    背景:基于表现的身体检查已被广泛用作膝关节骨关节炎(KOA)患者的客观评估,国际骨关节炎研究学会(OARSI)推荐的核心测试旨在提供可靠的,有效,可行、规范的临床应用措施。然而,很少有研究证明其在X线平片轻度KOA中的有效性。我们的目标是在Kellgren和Lawrence(K-L)0-2级X射线检查结果的有症状KOA患者中测试五种基于性能的测试的有效性。
    方法:我们从门诊诊所招募了30名KOA患者和30名年龄和性别匹配的无症状对照者。他们进行了五项OARSI推荐的身体检查,KOA小组回答了西安大略省和麦克马斯特大学(WOMAC)骨关节炎指数。试验包括9步爬楼梯试验(9s-SCT),定时和去(TUG)测试,30秒椅台测试(30sCST),40米快速步行测试(40MFPW)和6分钟步行测试(6MWT)。这些身体检查的判别效度是通过KOA和对照组之间的比较来评估的,受试者工作曲线和多变量逻辑回归分析。通过物理测试结果与KOA组WOMAC的三个子量表得分之间的相关性来评估收敛/发散有效性。
    结果:KOA组的表现明显差于对照组。差异百分比在9s-SCT(57.2%)和TUG测试(38.4%)中最大。同时,TUG试验和6MWT(1.2~2.0)的科恩d大于1.2,和0.8和1.2之间的其他测试。区分两组的曲线下面积大多为优到优,除了30sCST。9s-SCT和身体功能(WOMAC-PF)子量表得分(Spearman\sρ=0.60)之间存在中等相关性,证明了收敛有效性。
    结论:OARSI推荐的核心集通常对K-L0-2级KOA患者及其对照组具有高度区别性,但仅在9s-SCT中观察到收敛/发散有效性。需要进一步的研究来评估这些测试的反应性,并了解物理性能和自我报告措施的不一致。
    BACKGROUND: Performance-based physical tests have been widely used as objective assessments for individuals with knee osteoarthritis (KOA), and the core set of tests recommended by the Osteoarthritis Research Society International (OARSI) aims to provide reliable, valid, feasible and standardized measures for clinical application. However, few studies have documented their validity in roentgenographically mild KOA. Our goal was to test the validity of five performance-based tests in symptomatic KOA patients with X-ray findings of Kellgren and Lawrence (K-L) grade 0-2.
    METHODS: We recruited a convenience sample of thirty KOA patients from outpatient clinics and 30 age- and sex-matched asymptomatic controls from the community. They performed five OARSI-recommended physical tests and the KOA group answered the Western Ontario and McMaster Universities (WOMAC) Osteoarthritis Index. The tests included the 9-step stair-climbing test (9 s-SCT), timed up and go (TUG) test, 30-second chair-stand test (30sCST), 40-m fast walking-test (40MFPW) and 6-minute walking test (6MWT). The discriminant validity of these physical tests were assessed by comparisons between the KOA and control groups, receiver operating curve and multivariate logistic regression analysis. The convergent/divergent validity was assessed by correlation between the physical tests results and the three subscale scores of the WOMAC in the KOA group.
    RESULTS: The KOA group had significantly worse performance than the control group. The percentage of difference was the largest in the 9 s-SCT (57.2%) and TUG tests (38.4%). Meanwhile, Cohen\'s d was above 1.2 for the TUG test and 6MWT (1.2 ~ 2.0), and between 0.8 and 1.2 for the other tests. The areas under the curve to discriminate the two groups were mostly excellent to outstanding, except for the 30sCST. Convergent validity was documented with a moderate correlation between the 9 s-SCT and the physical function (WOMAC-PF) subscale scores (Spearman\'s ρ = 0.60).
    CONCLUSIONS: The OARSI recommended core set was generally highly discriminative between people with K-L grade 0-2 KOA and their controls, but convergent/divergent validity was observed only in the 9 s-SCT. Further studies are required to evaluate the responsiveness of these tests and understand the discordance of physical performance and self-reported measures.
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