Biostatistics: Concepts and applications

This unit introduces you to biostatistics as applied to public health and management studies. Biostatistics is the science of describing, summarising and analysing health-related data. It is essential to understand biostatistics in order to design, conduct and interpret health-related research. The basic principles and methods used in biostatistics are covered in this unit. This includes the technical qualifications necessary for analysing and interpreting data on a descriptive and bivariate level.

Topics include: classification of health data; summarizing data using simple statistical methods and graphical presentation; sampling distributions, quantifying uncertainty in results from a sample; statistical distributions; comparing two/more groups/methods using confidence intervals and hypothesis tests (p-values); assessing the association between an outcome and an exposure using the chi-squared test; risk comparisons (RR & OR); prediction of an event or identifying risk factors for an event of interest where the event is measured on a continuous scale or a binary scale (yes/no); sample size calculations.