accuracy of diagnostic methods and surveillance

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The Diabetes Technology Society Blood Glucose Monitor System (BGMS) Surveillance Program was established because of evidence that cleared BGMSs do not always achieve levels of accuracy matching either: 1) their performance that resulted in becoming cleared by FDA or 2) international standards of accuracy Poor performance of these devices can lead to adverse clinical and economic Understanding Sources of Bias in Diagnostic Accuracy Studies Robert L Schmidt MD PhD MBA Rachel E Factor MD MHS Context —Accuracy is an important feature of any diagnostic test There has been an increasing awareness of deficiencies in study design that can create bias in estimates of test accuracy Many pathologists are unaware of these sources of bias Objective —To explain the

Accuracy of Diagnostic Methods and Surveillance

RESEARCH Accuracy of Diagnostic Methods and Surveillance Sensitivity for Human Enterovirus South Korea 1999–2011 Ji-Yeon Hyeon Seoyeon Hwang Hyejin Kim Jaehyoung Song Jeongbae Ahn Byunghak Kang Kisoon Kim Wooyoung Choi Jae Keun Chung Cheon-Hyun Kim Kyungsoon Cho Youngmee Jee Jonghyun Kim Kisang Kim Sun-Hee Kim Min-Ji Kim and Doo-Sung Cheon

Context Computed tomographic (CT) colonography has been recognized as an alternative for colorectal cancer (CRC) screening in average-risk individuals but less information is available on its performance in individuals at increased risk of CRC Objective To assess the accuracy of CT colonography in

As the number of persons with diabetes is projected to double in the next 25 years in the US an accurate method of identifying diabetic foot ulcers in population-based data sources are ever more important for disease surveillance and public health purposes The objectives of this study are to evaluate the accuracy of existing methods and to propose a new method

Global Antimicrobial Resistance Surveillance System (GLASS) in order to standardize the collection of data on AMR in Member States for planning prevention and intervention programmes Reports to GLASS currently rely on detection of phenotypic resistance which requires bacteria to be cultured and tested for growth in the presence of antimicrobial agents In future GLASS may incorporate the

Objective We adapted the Quality Assessment of Diagnostic Accuracy Studies 2 (QUADAS-2) tool for studies of cervical cancer screening and management and used the adapted tool to evaluate the quality of studies included in a systematic review supporting the 2019 Risk-Based Management Consensus Guidelines Methods We evaluated the quality of all studies included in our systematic review for

Introduction

TGHN Diagnostic evaluation and testing Working Group 1st meeting COVID Hub - Minutes Date: 12/06/20 Location: Zoom Introduction The ongoing establishment of 'COVID-19 working Groups' is addressing the discussion and consensus building around identified research gaps across low resource settings All attendees of 'open workshops' have been invited to participate by completing a survey

disease surveillance and public health purposes The objectives of this study are to evaluate the accuracy of existing methods and to propose a new method Methods: Four existing methods were used to identify all patients diagnosed with a foot ulcer in a Department of Veterans Affairs (VA) hospital from the inpatient and outpatient datasets for

As the number of persons with diabetes is projected to double in the next 25 years in the US an accurate method of identifying diabetic foot ulcers in population-based data sources are ever more important for disease surveillance and public health purposes The objectives of this study are to evaluate the accuracy of existing methods and to propose a new method

This is important because methods for the accurate detection of disease are pivotal to surveillance programmes that focus on the spatial the performance of diagnostic tests we explore how the accuracy of the prior information impacts conclusions regarding disease prevalence using four scenarios (1) prior specifies lower test A sensitivity ( = 0 292) (2) prior specifies higher test A

Surveillance is the 'on-going scrutiny continuous analysis interpretation and feedback of systematically collected data generally using methods distinguished by their practicability uniformity and frequently their rapidity rather than complete accuracy'

Understanding Sources of Bias in Diagnostic Accuracy Studies Robert L Schmidt MD PhD MBA Rachel E Factor MD MHS Context —Accuracy is an important feature of any diagnostic test There has been an increasing awareness of deficiencies in study design that can create bias in estimates of test accuracy Many pathologists are unaware of these sources of bias Objective —To explain the

This is the first of a series of five articles Development and introduction of new diagnostic techniques have greatly accelerated over the past decades The evaluation of diagnostic techniques however is less advanced than that of treatments Unlike with drugs there are generally no formal requirements for adoption of diagnostic tests in routine care

Two other prior studies within the Breast Cancer Surveillance Consortium evaluated both patient and radiologist characteristics associated with the accuracy of diagnostic mammography to evaluate a breast problem [11 12] and found that breast density previous mammography self-reported breast lump and radiologists with academic affiliation were associated with interpretive performance

Diagnostic accuracy of loop

Pregnant women frequently show low-density Plasmodium infections that require more sensitive methods for accurate diagnosis and early treatment of malaria This is particularly relevant in low-malaria transmission areas where intermittent preventive treatment is not recommended Molecular methods such as polymerase chain reaction (PCR) are highly sensitive but require sophisticated

In 1974 a joint FAO/UNICEF/WHO Expert Committee met to develop methods for nutrition surveillance There has been much interest and activity in this topic since then however there is a lack of guidance for practitioners and confusion exists around the terminology of nutrition surveillance In this paper we propose a classification of data collection activities consider the technical issues

01 08 2013Accuracy of Diagnostic Methods and Surveillance Sensitivity for Human Enterovirus South Korea 1999–2011 Ji-Yeon Hyeon Seoyeon Hwang Hyejin Kim Jaehyoung Song Jeongbae Ahn Byunghak Kang Kisoon Kim Wooyoung Choi Jae Keun Chung Cheon-Hyun Kim Kyungsoon Cho Youngmee Jee Jonghyun Kim Kisang Kim Sun-Hee Kim Min-Ji Kim and Doo-Sung Cheon

The Quality Assessment of Diagnostic Accuracy Studies (QUADAS) tool was used to assess the validity of the studies comparing different methods of case ascertainment and surveillance The QUADAS tool includes 14 questions about the spectrum of patients studied selection criteria test verification test description blinding uninterpretable results and study withdrawals [ 7 ]

Methods Active surveillance for community-acquired pneumonia (CAP) in hospitalised adults was carried out from December 2010 to 2013 The identification of pneumococcal CAP (CAP Spn) was conducted through the urine antigen detection (UAD) identification of S pneumoniae in sputum or blood cultures S pneumoniae was found in NP swabs with the aid of lytA and cpsA real-time PCR

Early accurate diagnosis is fundamental in the management of patients with ventilator-associated pneumonia (VAP) The aim of this qualitative review was to compare various criteria of diagnosing VAP in the intensive care unit (ICU) with a special emphasis on the value of clinical diagnosis microbiological culture techniques and biomarkers of host response

This review concluded that the diagnostic accuracy of alpha fetoprotein tumour marker in small hepatocellular carcinoma was limited and surveillance of hepatocellular carcinoma in high-risk populations should include des-gamma-carboxyprothrombin and/or Lens culinaris agglutinin-reactive fraction of alpha fetoprotein Substantial differences between studies poor overall test accuracy and

28 05 2020In situ immune profiling of heart transplant biopsies improves diagnostic accuracy and My research focuses on applying computer-assisted analytical methods to multidimensional diagnostic data in order The guideline-directed histologic grading of biopsy tissues for rejection surveillance has modest diagnostic