Intensive Case Finding of Tuberculosis and Diabetes Mellitus-Bidirectional Screening of Patients Attending a Tertiary Teaching Hospital in Rural Telangana, India

Abstract

Introduction: Tuberculosis (TB) is a communicable disease of global public health threat. Poor and vulnerable populations are mainly affected with it. In association with Diabetes Mellitus (DM), TB may get worsen as increased relapse rates, delayed sputum culture conversion, increase in the case fatality rates etc. Conversely, TB may increase the incidence of DM, and worsen glycaemic control in diabetes patients. Aim: To study the effectiveness of bidirectional screening for TB and DM in rural hospital. Materials and Methods: A cross-sectional cohort study conducted at Medicine and Pulmonology department of MediCiti Institute of Medical Sciences (MIMS) for a period of nine months in June 2019-February 2020. All TB patients were screened for DM and vice versa. All TB patients were followed-up for treatment outcome of TB and all DM patients were followed-up for glycaemic control. Relative risk was calculated using incidence of outcome or control of disease in TB with DM patients to TB patients and DM with TB patients to DM patients. Results: Of 256 TB patients, 38 (14.8%) were TB with DM cases. All 256 patients were followed-up for TB treatment outcome, 100% TB patients without DM had recovery, whereas 97.3% TB patients with DM had recovery after two months of therapy. Relative risk of DM on TB outcome was 0.97. Of 256 DM patients screened, 9 (3.5%) had been newly diagnosed with TB. All 256 people were followed-up for impact on glycaemic control. Relative risk of TB on glycemic control was 1.87. Conclusion: Bidirectional screening would potentially improve care and prevention of TB and DM.