Sputum examination was carried out at the 2nd, 4th and 6th month as required by RNTCP. All HIV seropositive pulmonary tuberculosis cases were treated with Category 1 regimen, while HIV seronegative patients were treated with either Category 1 or Category III regimens as per RNTCP guidelines. During the period of anti-TB treatment, if the subject failed to turn up for treatment, suitable action was taken as described in the RNTCP to ensure regularity in anti-TB treatment. At the time of the initiation of the study, free antiretroviral therapy was not yet available in India. Whenever a death occurred in the.
