<prompt> Risk factors for active tuberculosis among persons who have been infected with tubercle bacilliPeptic ulcerSilicosisLeprosyAcute renal failure  <response>: B Silicosis Risk Factors for Active Tuberculosis among persons who have been infected with Tubercle BacilliFACTOR RISKODDSRELATIVE Recent infection 1 year12.9 Fibrotic lesions spontaneously healed2-20 Comorbidity HIV infection100 Silicosis30 Chronic renal failurehemodialysis10-25 Diabetes2-4 Intravenous drug use10-30 Immunosuppressive treatment10 Gastrectomy2-5 Jejunoileal bypass30-60 Posttransplantation period renal, cardiac20-70 Malnutrition severe underweight2 