Biostatistics

Abstract

Biostatistics is a collection, organization, summarization, and analysis of data that is derived from the biological science and medicine. Whereas epidemiology is the study of the distribution and determinants of health-related states or events in specified populations and the application of this study to control of health problems. Physicians are in the constant pursuit of knowledge and face the challenges of understanding and critically assessing journal articles, which contain a variety of statistical methods, analysis, and conclusions. To apply the recently acquired knowledge for the care of their patients, they need to evaluate the different methodologies reported in medical journals and perceive the weaknesses and strengths of the research literature. In this chapter, we intend to summarize the different definitions of biostatistics, probability, hypothesis testing, the relation between variables and epidemiology, so that these concepts can reinforce the techniques and definitions that physicians most commonly encounter. The relation between variables is a very important concept that will help understand the basics of regression and the differences between the different outcomes about the predictive variables.