Finding the Missing Tuberculosis Patients

By The Journal Of Infectious Diseases
6 November, 2017

Many of the key principles of tuberculosis (TB) control are credited to the work of Karel Styblo, the Dutch epidemiologist. Working in Tanzania, Styblo developed a set of registries to capture information on patients evaluated for TB and then used the registries to monitor and evaluate the performance of early TB control programs [1]. Given the success of his approach, Styblo popularized the use of the cohort analysis to evaluate treatment outcomes. In a cohort analysis, every patient started on treatment is accounted for and assigned a treatment outcome. This countered the common tendency to bias the reporting of treatment outcomes by excluding patients who failed to complete treatment.


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