scispace - formally typeset
Open AccessJournal ArticleDOI

Requirements for Minimum Sample Size for Sensitivity and Specificity Analysis

Reads0
Chats0
TLDR
These tables were derived from formulation of sensitivity and specificity test using Power Analysis and Sample Size (PASS) software based on desired type I error, power and effect size.
Abstract
Sensitivity and specificity analysis is commonly used for screening and diagnostic tests. The main issue researchers face is to determine the sufficient sample sizes that are related with screening and diagnostic studies. Although the formula for sample size calculation is available but concerning majority of the researchers are not mathematicians or statisticians, hence, sample size calculation might not be easy for them. This review paper provides sample size tables with regards to sensitivity and specificity analysis. These tables were derived from formulation of sensitivity and specificity test using Power Analysis and Sample Size (PASS) software based on desired type I error, power and effect size. The approaches on how to use the tables were also discussed.

read more

Citations
More filters
Journal ArticleDOI

Paper-based microfluidics for DNA diagnostics of malaria in low resource underserved rural communities

TL;DR: The tests, which enabled the diagnosis of malaria species in patients from a finger prick of whole blood, were both highly sensitive and specific, detecting malaria in 98% of infected individuals in a double-blind first-in-human study.
Journal ArticleDOI

A review of screening tools for the identification of autism spectrum disorders and developmental delay in infants and young children: recommendations for use in low- and middle-income countries.

TL;DR: A review of the literature for screening tools for DD and autism to make recommendations for tool selection and use in low‐ and middle‐income countries (LMIC) identified 10 tools which show promise for use across settings.
Journal ArticleDOI

Paper microfluidics for nucleic acid amplification testing (NAAT) of infectious diseases

TL;DR: This review attempts to offer a structured description of the state of the art of Nucleic Acid Amplification Tests (NAATs) complying with the constraints of the field in low and middle income countries.
Journal ArticleDOI

How to calculate sample size for observational and experimental nursing research studies

TL;DR: There are different formulas of sample size calculation for different types of variables measured in distinct study designs, namely descriptive, epidemiological, comparative, and interventional research studies which are covered in this article.
Journal ArticleDOI

Diagnostic accuracy of a SARS-CoV-2 rapid antigen test in real-life clinical settings.

TL;DR: In this article, the accuracy of the SARS-CoV-2 Roche/SD Biosensor rapid antigen test was evaluated in a primary/secondary care setting, and the results showed that the sensitivity of the test was 65.3% (95% confidence interval [CI] 56.8-73.1).
References
More filters
Journal ArticleDOI

Using the Berlin Questionnaire To Identify Patients at Risk for the Sleep Apnea Syndrome

TL;DR: The Berlin Questionnaire was evaluated for the usefulness of this instrument in identifying patients with sleep apnea in primary care settings and was shown to be useful in sleep clinic and community surveys.
Journal Article

Glioma grading: sensitivity, specificity, and predictive values of perfusion MR imaging and proton MR spectroscopic imaging compared with conventional MR imaging

TL;DR: The rCBV measurements had the most superior diagnostic performance (either with or without metabolite ratios) in predicting glioma grade and can be used in a clinical setting to evaluate tumors preoperatively for histologic grade and provide a means for guiding treatment and predicting postoperative patient outcome.
Journal ArticleDOI

Likelihood ratios with confidence: sample size estimation for diagnostic test studies.

TL;DR: This work presents a method for calculating likelihood ratio confidence intervals for tests that have positive or negative results, tests with non-positive/non-negative results, and tests reported on an ordinal outcome scale and demonstrates a sample size estimation procedure for diagnostic test studies based on the desired likelihood ratioconfidence interval.
Journal ArticleDOI

Echocardiography in diagnosis of aortic dissection

TL;DR: Echocardiography, including the transoesophageal route, can provide accurate diagnosis of aortic dissection within 15 min, and to clarify branch involvement angiography is required.
Journal ArticleDOI

Statistical Methodology: I. Incorporating the Prevalence of Disease into the Sample Size Calculation for Sensitivity and Specificity

TL;DR: The simple methods and tables in this paper guide the researcher when deciding how many subjects to sample in a study designed to estimate both the sensitivity and the specificity of a diagnostic test, given a specified precision and estimated disease prevalence.
Related Papers (5)