Incidence rate and prevalence are two measures that describe the occurrence of a disease or condition in a population.
The incidence rate refers to the number of new cases of a disease that
To estimate the number of patients needed for a clinical study, three factors are taken into account: the expected effect size of the intervention, the desired level of statistical significance, and the anticipated
We typically categorise clinical studies depending on their purpose and design. The principal study designs are observational studies, randomised controlled trials, cohort studies, case control studies, cross sectional studies, systematic reviews and meta