The syndemic of concurrent tuberculosis (TB) and diabetes mellitus (DM) disproportionately affects low income countries, where between 20-50% of TB patients also have DM or dysglycaemia. This project will use existing data from TANDEM (http://www.tandem-fp7.eu/), a large 4 country and multi-disciplinary study of TB-DM. TANDEM data is already partly published, available at both institutes, and will also be made publicly available in line with consortium data sharing agreements. The studentship will develop a mathematical model, using cost, clinical and epidemiological data already collected in Indonesia, to assess the cost-effectiveness of different strategies to identify and manage patients with TB and DM. There are no previous assessments of the cost- effectiveness of intensified TB-DM management in either the short term (during TB treatment) or longer term (after TB treatment has been completed). We therefore expect the findings to guide decisions about the management of concurrent TB-DM globally.