Point-of-care test

即时测试
  • 文章类型: Journal Article
    目的:乳糜泻(CD)是一种常见但未被诊断的自身免疫性疾病,具有实质性的长期后果。在青少年初级保健中心(YHCC)进行的CD抗体的高精度护理点测试(POCT)可能有助于早期识别CD,但是缺乏有关此类策略的成本效益的证据。与荷兰的临床检测相比,我们估计了主动病例发现和大规模筛查的长期成本效益。
    方法:根据每种策略,使用决策树和马尔可夫模型来模拟一组3岁的CD儿童,考虑到它们对长期成本(从社会角度)和质量调整寿命年(QALY)的影响。模型参数包含来自GLUTENSCREEN项目的数据,荷兰乳糜泻协会,荷兰儿科监测单位,和公布的来源。主要结果是策略之间的增量成本效益比(ICER)。
    结果:与目前的护理相比,大规模筛查产生的QALYs增加了7.46,费用增加了28,635欧元(ICER:€3841/QALY),与目前的护理相比,病例发现产生的QALYs增加了4.33,费用增加了15,585欧元(ICER:3603欧元/QALY)。在愿意为每个QALY支付2万欧元的情况下,与目前的治疗方案相比,两种治疗方案均具有很高的成本效益.情景分析表明,大规模筛查可能是最佳策略,除非假设在检测无症状病例中没有益处。
    结论:在使用POCT的儿童中通过筛查或病例发现较早地识别CD可以改善健康结果,并且与目前的护理相比具有长期的成本效益。如果拟议战略的可行性和可接受性是成功的,需要在荷兰实施定期护理。
    OBJECTIVE: Celiac disease (CD) is a common yet underdiagnosed autoimmune disease with substantial long-term consequences. High-accuracy point-of-care tests for CD antibodies conducted at youth primary health care centers may enable earlier identification of CD, but evidence about the cost-effectiveness of such strategies is lacking. We estimated the long-term cost-effectiveness of active case finding and mass screening compared with clinical detection in the Netherlands.
    METHODS: A decision tree and Markov model were used to simulate a cohort of 3-year-old children with CD according to each strategy, taking into account their impact on long-term costs (from a societal perspective) and quality-adjusted life-years (QALYs). Model parameters incorporated data from the GLUTENSCREEN project, the Dutch Celiac Society, the Dutch Pediatric Surveillance Unit, and published sources. The primary outcome was the incremental cost-effectiveness ratio (ICER) between strategies.
    RESULTS: Mass-screening produced 7.46 more QALYs and was €28,635 more costly compared with current care (ICER: €3841 per QALY), and case finding produced 4.33 more QALYs and was €15,585 more costly compared with current care (ICER: €3603 per QALY). At a willingness to pay of €20,000 per QALY, both strategies were highly cost-effective compared with current care. Scenario analyses indicated that mass screening is likely the optimal strategy, unless no benefit in detecting asymptomatic cases is assumed.
    CONCLUSIONS: An earlier identification of CD through screening or case finding in children using a point-of-care tests leads to improved health outcomes and is cost-effective in the long-term compared with current care. If the feasibility and acceptability of the proposed strategies are successful, implementation in Dutch regular care is needed.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    在全球范围内,COVID-19大流行的爆发正在给各国政府造成困扰,各国政府竭尽全力控制新型冠状病毒(SARS-CoV-2)的传播,以防止发病率和死亡率。正在采取行动,以防止医疗保健系统过度紧张并遏制疫情。任何旨在减缓病毒传播和减轻其对医疗保健系统的直接影响的政策反应都需要关于目前受感染人数绝对数量的坚实基础信息,增长率,以及感染的地点/热点。获得这种信息库的唯一方法是有针对性地进行大量测试。目前,在加纳,有一个集中的测试方法,需要4-5天的时间才能将样品运送到中央参考实验室进行测试,并将结果传达给该地区,区域和国家利益相关者。这种诊断延迟增加了社区和脆弱机构持续传播的风险。我们已经验证了,在移动实验室平台上评估并部署了创新的诊断工具,以加速COVID-19测试。对COVID-19疑似病例的74份样本的初步结果,阳性率为12%,从取样到报告结果的周转时间不到3小时,将等待时间从几天缩短到几小时,使卫生系统能够对接触者追踪做出权宜之计,以减少传播,并进一步改善病例管理。
    测试套件由AngloGoldAshantiObuasi矿山(AngloGoldAshantiHealthFoundation)提供。美国麻风研究团捐赠了PCR仪,和流动实验室面包车由荷兰王国大使馆(EKN)资助。AAS,YAA由(PANDORA-ID-NETRIA2016E-1609)支持,ROP由EDCTP高级研究员(TMA2016SF)支持,两者均由欧洲和发展中国家临床试验伙伴关系(EDCTP2)计划资助,该计划由欧盟Horizon2020支持。
    Across the globe, the outbreak of the COVID-19 pandemic is causing distress with governments doing everything in their power to contain the spread of the novel coronavirus (SARS-CoV-2) to prevent morbidity and mortality. Actions are being implemented to keep health care systems from being overstretched and to curb the outbreak. Any policy responses aimed at slowing down the spread of the virus and mitigating its immediate effects on health care systems require a firm basis of information about the absolute number of currently infected people, growth rates, and locations/hotspots of infections. The only way to obtain this base of information is by conducting numerous tests in a targeted way. Currently, in Ghana, there is a centralized testing approach, that takes 4-5 days for samples to be shipped and tested at central reference laboratories with results communicated to the district, regional and national stakeholders. This delay in diagnosis increases the risk of ongoing transmission in communities and vulnerable institutions. We have validated, evaluated and deployed an innovative diagnostic tool on a mobile laboratory platform to accelerate the COVID-19 testing. A preliminary result of 74 samples from COVID-19 suspected cases has a positivity rate of 12% with a turn-around time of fewer than 3 hours from sample taking to reporting of results, significantly reducing the waiting time from days to hours, enabling expedient response by the health system for contact tracing to reduce transmission and additionally improving case management.
    UNASSIGNED: Test kits were provided by AngloGold Ashanti Obuasi Mine (AngloGold Ashanti Health Foundation). The American Leprosy Mission donated the PCR machine, and the mobile laboratory van was funded by the Embassy of the Kingdom of the Netherlands (EKN). AAS, YAA was supported by (PANDORA-ID-NET RIA2016E-1609) and ROP supported by EDCTP Senior Fellowship (TMA2016SF), both funded by the European and Developing Countries Clinical Trials Partnership (EDCTP2) programme which is supported under Horizon 2020, the European Union.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    背景:现场,快速,指尖,全血即时检验(POCT)由于其简单性,对于在初级保健中积极发现乳糜泻(CD)的病例很有吸引力.
    目的:本文的目的是评估使用基于脱酰胺化麦醇溶蛋白肽抗体(IgA/IgG-DGP)的POCT在初级保健中用于CD诊断的成人病例发现的有用性和成本效益。
    方法:使用易于使用的CD进行了病例发现研究,现场,350例基于IgA/IgG-DGP的指尖POCT与tTG2的全血比较。样本量基于参考人群中0.28%的患病率计算。用于组织学的十二指肠活检,如果tTG2和/或POCT阳性,则获得上皮内淋巴细胞和tTG2的原位沉积。计算了使用血清学或POCT的策略的准确性和成本效益。
    结果:CD的患病率为1.14%(95%CI,0.3-3.4),几乎是以前观察到的两倍。4例患者被诊断为CD。tTG2阳性3例(0.85%),POCT阳性29例(8.2%)。POCT对CD的敏感性为100%,特异性93%,PPV14%,和NPV100%。POCT后十二指肠活检是我们设置中最具成本效益的方法(标准诊断:€13,033/例;POCT+十二指肠活检:€7360/例)。
    结论:阴性POCT允许在初级保健中排除CD,使其适合案件调查。POCT战略是最具成本效益的。
    BACKGROUND: An on-site, rapid, fingertip, whole-blood point-of-care test (POCT) is attractive for active case-finding of coeliac disease (CD) in primary care because of its simplicity.
    OBJECTIVE: The aim of this article is to assess the usefulness and cost-effectiveness of adult case-finding using a POCT based on deamidated gliadin peptide antibodies (IgA/IgG-DGP) in primary care for CD diagnosis.
    METHODS: A case-finding study for CD was conducted by using an easy-to-use, on-site, whole-blood for IgA/IgG-DGP-based fingertip POCT compared with tTG2 in 350 individuals. Sample size was calculated based on 0.28% prevalence in the reference population. Duodenal biopsies for histology, intraepithelial lymphocytes and in situ deposition of tTG2 were obtained if tTG2 and/or POCT were positive. Accuracy and cost-effectiveness of strategies using serology or POCT were calculated.
    RESULTS: Prevalence of CD was 1.14% (95% CI, 0.3-3.4), almost double what was previously observed. Four patients were diagnosed with CD. tTG2 was positive in three (0.85%) and POCT in 29 (8.2%). Sensitivity of POCT for CD was 100%, specificity 93%, PPV 14%, and NPV 100%. POCT followed by duodenal biopsy was the most cost-effective approach in our setting (standard diagnosis: €13,033/case; POCT + duodenal biopsy: €7360/case).
    CONCLUSIONS: A negative POCT allows ruling out CD in primary care, making it suitable for case-finding. POCT strategy was the most cost effective.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    我们试图描述在中国城市地区的男男性行为者(MSM)的社区HIV筛查中,快速检测优于ELISA检测的优势。分析了2011年在12个地区的MSM中进行的为期六个月的31,406项筛查测试的数据,以比较接受快速检测和ELISA的差异。快速检测占这些筛查试验的45.8%。快速检测中的筛查阳性率为7.2%,ELISA检测为5.3%(χ(2)=49.161,p<0.001)。即使在社会人口统计学的情况下,在HIV病例发现中快速检测的这种优势仍然存在,行为,筛选招募渠道和城市在逻辑回归中被控制(exp[β]=1.42,p<0.001,95%CI=1.27,1.59)。接受快速测试的MSM,与ELISA测试的相比,在上一次肛交期间使用避孕套的可能性较小(50.8%vs.72.3%,χ(2)=1706.146,p<0.001),更有可能有多个性伴侣(55.7%vs.49.5%,χ(2)=238.188,p<0.001),以前接受过HIV检测的可能性较小(38.8%与54.7%,χ(2)=798.476,p<0.001)。这些结果表明,与中国城市地区的社区组织合作,快速检测在筛查HIV感染的MSM方面比传统ELISA检测更具优势。
    We sought to describe the advantage of rapid tests over ELISA tests in community-based screening for HIV among men who have sex with men (MSM) in urban areas of China. Data of 31,406 screening tests conducted over six months in 2011 among MSM across 12 areas were analyzed to compare the differences between those receiving rapid testing and ELISA. Rapid tests accounted for 45.8% of these screening tests. The rate of being screened positive was 7.2% among rapid tests and 5.3% for ELISA tests (χ(2 )= 49.161, p < 0.001). This advantage of rapid test in HIV case finding persisted even when socio-demographic, behavioural, screening recruitment channel and city were controlled for in logistic regression (exp[beta] = 1.42, p < 0.001, 95% CI = 1.27,1.59). MSM who received rapid tests, compared with those tested by ELISA, were less likely to use condoms during last anal sex (50.8% vs. 72.3%, χ(2 )= 1706.146, p < 0.001), more likely to have multiple sex partners (55.7% vs. 49.5%, χ(2 )= 238.188, p < 0.001) and less likely to have previously undergone HIV testing (38.8% vs. 54.7%, χ(2 )= 798.476, p < 0.001). These results demonstrate the robustness of the advantage of rapid tests over traditional ELISA tests in screening for MSM with HIV infection in cooperation with community-based organizations in urban settings in China.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

公众号