PREVALENCE OF LATENT TUBERCULOSIS INFECTION (LTBI) IN PATIENTS WITH DIABETES MELLITUS

Main Article Content

Amber Mazhar
Anila Rehman
Rizwan Athar
Hira Vaqar
Hafiz Usman Ranjha

Keywords

Diabetic, Diabetes Mellitus, Latent Tuberculosis Infection, Prevalence, Tuberculosis

Abstract

Objectives: To determine the prevalence of Latent Tuberculosis Infection (LTBI) in diabetic patients.


Study Design: A descriptive cross - sectional study.


Settings: Pulmonology Department, Fauji Foundation Hospital Rawalpindi


Period:  06 months - 1st Jan 2021 to 1st July 2021.


Material & Methods: After approval by the Ethical Review Committee, Fauji Foundation Hospital Rawalpindi, a cross-sectional study was carried out. Non-probability consecutive sampling technique was used. After obtaining informed consent, around 100 Diabetic patients, both previously and newly diagnosed were enrolled in the study. The study participants were screened for Latent TB infection using chest radiography and the interferon-gamma release assay Quantiferon-TB Gold In-Tube Test (QFT-GIT) and classified according to CDC (Center for Disease Control and Prevention) guidelines.  Data regarding age, gender, HbA1c were also collected.


Results: Out of 100 diabetic patients (mean age: 55.77 ± 12.30 years), of whom majority (93%) were females; 45% of the cases presented with Latent Tuberculosis Infection (LTBI). Chi square test of independence revealed an association of duration of Diabetes Mellitus with Latent TB Infection i.e. 34 (40%) patients who had diabetes for more than 12 months had LTBI; compared to 11 (73.3%) of the patients with DM duration less than 12 months (p - value = 0.025).


Conclusion: A substantial number of LTBI cases were detected in the diabetic population via the Quantiferon Gold TB test, highlighting the need to integrate TB infection management in diabetes care.

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