International Journal of

Clinical Biostatistics and BiometricsISSN: 2469-5831

Early Online

 Open Access DOI:10.23937/2469-5831/1510021

A Comparative Study of Three Classification Procedures: Asthma among Healthcare Professionals in Texas

Dejian Lai, Ahmed A Arif, Haiyun Xu and George L Delclos

Article Type: Original Research article | First Published: April 29, 2019

Statistical classification analysis has been widely used in many fields. In this article, we applied and compared three different classification procedures: Logistic regression, Fisher''s linear discriminant function and the second order Bahadur representation to two datasets from two surveys on asthma among healthcare professional in Texas. The first dataset contained 102 subjects and the second dataset 2963. The concordance of the classification from the three statistical procedures with possi...

 Open Access DOI:10.23937/2469-5831/1510020

An Approximation of a Longitudinal Stochastic Model

Khalid A Salah

Article Type: Research Article | First Published: March 25, 2019

We propose to approximate a model for repeated measures that incorporated random effects, correlated stochastic process and measurements error. The stochastic process used in this paper is the Integrated Ornstein-Uhlenbeck (IOU) process. We consider a Bayesian approach which is motivated by the complexity of the model, thus, we propose to approximate the IOU stochastic process into a continuous spatial model that constructed by convolving a very simple and independent, process with a kernel func...

 Open Access DOI:10.23937/2469-5831/1510019

Correlation Statistic for Assessing a Diagnostic Value Based on a Bivariate Bernoulli Distribution with Application to a Retrospective Single-Center Clinical Study

Xiaoyong Wu, Jayesh P Rai, Guohua Yan, Srivastava DK and Shesh N Rai

Article Type: RESEARCH ARTICLE | First Published: March 04, 2019

Assessing the performance of diagnostic tests for repeated binary measurements is very important in clinical trials and diagnostic medicine. The gastric-emptying studies involve 4-hourly measurements of emptying. Empirical results suggest that the gastric emptying results over time are correlated and therefore failure to consider the correlation in statistical measures may not produce satisfactory assessments. If these measurements are highly correlated/associated, early gastric emptying can be ...

Volume 5
Issue 1