Aim and objectives: Our aim was to evaluate the incidence and prevalence of autoimmune diseases in a tertiary care hospital.
Materials and Methods: An observational and retrospective study of incidence and prevalence of autoimmune diseases was carried out in Aware Gleneagles Global Hospital, Hyderabad, Telangana. Approximately a total of 10,000 patients were studied out of them 110 patients were diagnosed with autoimmune diseases.
Results: Approximately one case of autoimmune disease was seen for every 100 patients. The ratio of prevalence of autoimmune diseases to other diseases was found to be 1:9. A total of 21 different types of autoimmune diseases were obtained, the most prevalent are GB syndrome, Hashimoto thyroiditis, RA, and SLE, and a significant increase of incidence of autoimmune disease was observed from 2017-2021, especially in the case of GB syndrome. Among the 110 patients, 73 were affected with a single autoimmune disease and 37 patients were suffering from two autoimmune diseases (secondary AID caused by a primary AID).
Conclusion: The incidence and prevalence of autoimmune diseases have been significantly increasing from 2017 to 2021, 21 different types of autoimmune diseases were diagnosed; it was observed that women were more prone to be diagnosed with the autoimmune disease than men.  A total of 37 patients were found to be suffering from secondary autoimmune disease, with a majority of patients suffering from co morbid conditions like hypertension and diabetes mellitus.