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Factors Associated with Prevalent Tuberculosis Among Patients Receiving Highly Active Antiretroviral Therapy in a Nigerian Tertiary Hospital

Author(s):

Iroezindu MO, Iroezindu MO, Iroezindu MO, Iroezindu MO*, Mbata GC, Wyk B, Hausler HP, Au DH, Lynen L and Hopewell PC

Background: Tuberculosis (TB) causes significant morbidity/mortality among human immunodeficiency virusâ�?�?�?�?infected individuals in Africa. Reducing TB burden in the era of highly active antiretroviral therapy (HAART) is a public health priority. Aim: We determined the factors associated with prevalent TB among patients receiving HAART. Subjects and Methods: We conducted a crossâ�?�?�?�?sectional study of adult patients who had received HAART for ≥12 weeks in a Nigerian tertiary hospital. Patients whose TB diagnosis predated HAART were excluded from the study. Preâ�?�?�?�?HAART data were collected from the clinic records, whereas postâ�?�?�?�?HAART data were obtained through medical history, physical examination, and laboratory investigations. Standard TB screening/diagnostic algorithms as applicable in Nigeria were used. Logistic regression analysis was used to determine factors independently associated with prevalent TB. Results: about 65.8% (222/339) were women. The mean age was 41.1 (10.0) years and 23.6% (73/339) had past history of TB. The prevalence of active TB was 7.7% (26/339). Among these patients, 42.3% (11/26) had pulmonary TB, 34.6% (9/26) had disseminated TB, whereas 23.1% (6/26) had only extraâ�?�?�?�?pulmonary disease. Only 45% (9/20) of patients with pulmonary involvement had positive sputum smear. Factors independently associated with prevalent TB were lower social class (adjusted odds ratio [aOR]: 31.7; 95% confidence interval [CI]: 1.1–1417.3), HAART nonâ�?�?�?�?adherence (aOR125.5; 95% CI: 9.6–1636.3), baseline CD4 <200cells/μl (aOR31.0; 95%CI: 1.6–590.6), previous TB (aOR13.8; 95% CI: 2.0–94.1), and current hemoglobin <10 g/dl (aOR10.3; 95% CI: 1.1–99.2). Conclusion: Factors associated with prevalent TB were a lower social class, HAART nonâ�?�?�?�?adherence, severe immunosuppression before HAART initiation, previous TB, and anemia postâ�?�?�?�?HAART. TB case finding should be intensified in these highâ�?�?�?�?risk groups.


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