Fz. Zhao et al., SPUTUM MICROSCOPY RESULTS AT 2 AND 3 MONTHS PREDICT OUTCOME OF TUBERCULOSIS TREATMENT, The international journal of tuberculosis and lung disease, 1(6), 1997, pp. 570-572
OBJECTIVE: To assess the importance of monitoring sputum conversion as
an early treatment indicator of treatment success. METHODS: Retrospec
tive analysis of sputum conversion in a cohort of 'cured' tuberculosis
patients. RESULTS: Of 65 (95%) patients whose sputum converted in the
third month of treatment, 62 were cured; only 21 of 35 (10%) patients
whose sputum was still positive at the end of three months of treatme
nt were ultimately cured. CONCLUSION: Sputum conversion during the thi
rd month of treatment is an important predictor of treatment success;
failure to convert predicts treatment failure.