Arecord review of tuberculosis (TB) patients registered in 2009 using a structured proforma from two sources, Tuberculosis and Laboratory Register, was undertaken in the six districts of Chhattisgarh, India.
In smear positive cases, of 10,048 follow-up examinations, 45 (0.5%) were found to be smear positive only on the second sputum when the result of the first sample was negative. In smear negative pulmonary and extra pulmonary TB patients, of 6,206 follow-up smear examinations, 11(0.2%) were found to be smear positive.
Kundu, D.; Kumar, AV.; Satyanarayana, S.; Dewan, PK.; Nair, SA.; Khaparde, K.; Nayak, P.; van der Bergh, R.; Manzi, M.; Enarson, DA.; Deshpande, MR.; Chandraker ,S. Can Follow-Up Examination of Tuberculosis Patients Be Simplified? A Study in Chhattisgarh, India. PLoS ONE (2012) 7 (12) e51038. [DOI: 10.1371/journal.pone.0051038]