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Understanding the TB Cohort Review Process: Instruction Guide 2006What Is the Cohort Review Method?3. Timeline for Activities in the Cohort Review ProcessA “cohort” is a group of TB patients who are being managed over a specific period of time, usually 3 months. In order to evaluate treatment and contact investigation outcomes, the patients’ cases are reviewed approximately 6–9 months after initial case reporting. This is after most patients with TB disease have had time to complete treatment and after most contacts have been identified, evaluated, and started on treatment for latent TB infection (LTBI), if indicated. A review at 6–9 months allows the TB control team to evaluate the adequacy of treatment and correct any problem areas while there is still time for the patient to complete treatment within 365 days. Most contacts infected with LTBI will not have completed therapy because of the time gap between patient reporting, testing of contacts, and the 9-month duration of standard isoniazid (INH) treatment. Contacts on treatment for LTBI should be tracked through to completion by the case manager. The data analyst reports treatment completion rate for contacts at the next review session. The following timeline illustrates the cohort review process: Table 8: Cohort Review Timeline
This cycle is repeated throughout the year. Cohort review sessions take place each quarter so that every TB case and contact investigation receives a thorough review. An example of a cohort review schedule is presented below. Table 9: Example of a Cohort Review Schedule
Last Reviewed: 05/18/2008 |
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If you would like to order any of the DTBE publications please visit the online order form. You will need Adobe Acrobat™ Reader v5.0 or higher to read pages that are in PDF format. Download the Adobe Acrobat™ Reader. If you have difficulty accessing any material on the DTBE Web site because of a disability, please contact us in writing or via telephone and we will work with you to make the information available. Division of Tuberculosis Elimination
Centers for Disease Control & Prevention |
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