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Year : 2020  |  Volume : 9  |  Issue : 1  |  Page : 7-11

Risk factors for hypercalcemia in patients with tuberculosis

Department of Internal Medicine, Christian Medical College, Vellore, Tamil Nadu, India

Correspondence Address:
Ajay Kumar Mishra
Department of Internal Medicine, Christian Medical College, Vellore - 632 004, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijmy.ijmy_211_19

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Background: Tuberculosis (TB) is prevalent worldwide and causes significant morbidity and mortality. TB is known to cause hypercalcemia. We aimed to assess the prevalence and risk factors for developing hypercalcemia among patients with TB. Methods: In this retrospective case–control study, patients with microbiological evidence of TB and an available serum calcium value were included between 2005 and 2016. The demographic, clinical, and laboratory details were recorded. Various risk factors were compared in TB patients with and without hypercalcemia. Results: A total of 129 patients fulfilled the inclusion criteria. Twenty percent were found to have an elevated serum calcium level, 65% of them had clinical features of hypercalcemia. In comparison, the odds of developing hypercalcemia in the presence of disseminated TB, diabetes and renal failure was 1.83, 1.60, and 7.33, respectively. Conclusion: One-fifth of patients with TB have hypercalcemia. Risk factors of the same are renal failure, diabetes, and disseminated TB.

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