Results 1 to 10 of about 6,406,615 (302)

In-depth evaluation of false-positive biological reactions in the syphilis serological diagnosis: a cross-sectional study with two sampling components [PDF]

Frontiers in Cellular and Infection Microbiology
ObjectivesThis study aimed to systematically evaluate the disease spectrum, demographic characteristics, and autoantibody profiles associated with biological false-positive (BFP) reactions in serological tests for syphilis.MethodsA retrospective analysis
Jing Li, Xiaohan Li, Yike Huang, Fei Ye, Xi Lin, Dongdong Li   +5 more
doaj   +2 more sources

False-positive test results: prevalence, time trends, and factors associated with false-positive serological markers in blood donation screening [PDF]

Hematology, Transfusion and Cell Therapy
Background and Objectives: False-positive serological results in blood donation screening may arise from antibody cross-reactivity, limitations in assay specificity, or low-level reactivity during early-stage infections, ultimately leading to donor ...
Lucas Kallas-Silva, Leandro Dinalli dos Santos, Valeria de Freitas Dutra, Jose Mauro Kutner, Carolina Bonet-Bub   +4 more
doaj   +2 more sources

Neuromonitoring in Cervical Spine Surgery: When Is a Signal Drop Clinically Significant? [PDF]

Asian Spine Journal, 2021
Study Design Retrospective cohort study. Purpose To identify the clinical significance of different patterns of intraoperative neuromonitoring (IONM) signal alerts.
Joshua Decruz, Arun-Kumar Kaliya-Perumal, Kevin Ho-Yin Wong, Dinesh Shree Kumar, Eugene Weiren Yang, Jacob Yoong-Leong Oh   +5 more
doaj   +1 more source

Development and research of a model for differential diagnosis of latent late syphilis and false-positive serological reactions on immunochips with a panel of 12 Treponema pallidum antigens

Vestnik Dermatologii i Venerologii, 2021
The aim - to find the optimal attributing rules to distinguish groups of latent stages of syphilis and false positive serological tests of using multivariate discriminant analysis Material and methods.
Marina V. Shpilevaya, Georgiy L. Katunin, Alexey A. Kubanov   +2 more
doaj   +1 more source

Understanding one-way ANOVA using conceptual figures [PDF]

Korean Journal of Anesthesiology, 2017
Analysis of variance (ANOVA) is one of the most frequently used statistical methods in medical research. The need for ANOVA arises from the error of alpha level inflation, which increases Type 1 error probability (false positive) and is caused by ...
Tae Kyun Kim
doaj   +1 more source

Characteristics of False-Positive Alarms in the BacT/Alert 3D System

Microbiology Spectrum, 2022
The BacT/Alert system has been used for detecting the presence of bacteria in various clinical settings as well as in blood services, but it is associated with a relatively high incidence of false-positive results.
Misato Amano, Mami Matsumoto, Shigeru Sano, Mayumi Oyama, Hideto Nagumo, Naoko Watanabe-Okochi, Nelson H. Tsuno, Kazunori Nakajima, Kazuo Muroi   +8 more
doaj   +1 more source

A high Z-score might increase the positive predictive value of cell-free noninvasive prenatal testing for singleton-pregnant women

The Journal of Maternal-Fetal & Neonatal Medicine, 2023
Objective To explore the positive predictive value (PPV) in noninvasive prenatal testing (NIPT)-positive cases and analyze the effect of the Z-score intervals on PPV performance.Methods In this retrospective study, 26,667 pregnant women underwent NIPT ...
Li Ma, Yulan Li, Lei Li, Hong Wu, Yongming Liu, Xin Yang, Aimin Lin   +6 more
doaj   +1 more source

Breast cancer survivors' risk of interval cancers and false positive results in organized mammography screening

Cancer Medicine, 2020
Background Breast cancer survivors are increasing followed for new breast cancers / recurrences by mammography screening only. We aimed at assessing how often breast cancer survivors get a false positive or false negative result at mammography screening.
Sisse Helle Njor, Ilse Vejborg, Mette Bach Larsen   +2 more
doaj   +1 more source

Problems of false positive laboratory tests during qualification to the ”Program of severe plaque psoriasis treatment” on the basis of two cases

Przegląd Dermatologiczny, 2015
Introduction. Qualification of patients for the therapeutic program of severe plaque psoriasis should be preceded by many tests. Abnormal test results require further evaluation and possibly implementation of treatment.
Dorota Jaśkiewicz-Nyckowska, Aneta Szczerkowska-Dobosz, Maria Czubek, Dorota Purzycka-Bohdan   +3 more
doaj   +1 more source

An ELISA protocol to improve the accuracy and reliability of serological antibody assays

MethodsX, 2017
To assay serum antibodies by indirect ELISA, it is critical to eliminate a variety of false positive and negative reactions attributed to the principle.
Takaki Waritani, Jessica Chang, Bonnie McKinney, Kuniaki Terato   +3 more
doaj   +1 more source