• Ping Zhao, Liang Chen, Ze Q Xie, Ji Y Jian, and Pan P Sun.
• From the Department of Clinical Laboratory (Zhao, Chen, Xie, Jian, Sun), Beijing Shijitan Hospital, Capital Medical University; and from Beijing Key Laboratory of Urinary Cellular Molecular Diagnostics (Zhao, Chen, Xie, Jian, Sun), Beijing, China.
• Saudi Med J. 2022 Nov 1; 43 (11): 121712231217-1223.

ObjectivesTo assess the clinical significance of serum CA-125 levels in elderly patients with pulmonary tuberculosis (PTB).MethodsWe retrospectively analyzed 1613 participants-patients (aged ≥60 years) admitted to the Beijing Shijitan Hospital, Beijing, China from February 2015 to January 2021 and healthy participants, divided into 4 groups: PTB (group 1), pulmonary malignancies (group 2), pulmonary non-malignant diseases (group 3), and healthy participants (group 4). Data concerning demographics, physical examination findings, computed tomography, histopathological examination, and laboratory tests for Mycobacterium tuberculosis and serum CA-125 levels were collected and analyzed.ResultsThere were 720 healthy individuals and 893 patients in the study. The median levels and abnormal rates of CA-125 in groups 1 (42.5, 57.3%) and 2 (34.4, 49.5%) were higher than those in groups 3 (21.1, 29.2%) and 4 (8.6, 0.4%) (p<0.05). The ordinal logistic regression analysis model revealed significant associations between CA-125 levels and PTB (OR and 95% confidence interval [CI]: 2.749 (1.876-4.027)), hypoproteinemia [OR and 95% CI: 1.519 (1.114-2.070)], serous effusion [OR and 95% CI: 7.364 (5.346-10.143)], pulmonary malignancy [OR and 95% CI: 2.206 (1.518-3.204)], respiratory failure [OR and 95% CI: 3.216 (2.087-4.956)], and cor pulmonale [OR and 95% CI: 2.990 (1.282-6.973)].ConclusionAlthough elevated CA-125 levels may serve as a potential marker for diagnosing PTB in the elderly, they are affected by multiple factors, including serous effusion. Hence, caution is warranted while using this marker.Copyright: © Saudi Medical Journal.

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