Number of patients who were examined for eligibility. Number of eligible patients who were entered into the study. Number of patients who completed all scheduled visits and procedures. It is also the minimum number of patients required for statistical analysis. A frequency distribution divided into four parts, each containing a quarter of the population.
Fourth quartile describes a high performer and first quartile describes a low performer.
It is also described as an index. Therapeutic areas will not always correspond to your company s departments. Certain codes, such as vaccinations and pain, have been broken down further for greater specificity. Total number of studies performed by the investigator according to the specified criteria. The Quartile Average is the sum of the products of the number of studies multiplied by their quartile, divided by the total number of studies.