Rate the Article: Factors Affecting Time to Sputum Culture Conversion and Treatment Outcome of 160 Patients with Multidrug-Resistant Tuberculosis in Tertiary Care Centres, Chennai, IJSR, Call for Papers, Online Journal
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064

Downloads: 148 | Views: 354

Research Paper | Medical Science | India | Volume 7 Issue 10, October 2018 | Rating: 6.3 / 10


Factors Affecting Time to Sputum Culture Conversion and Treatment Outcome of 160 Patients with Multidrug-Resistant Tuberculosis in Tertiary Care Centres, Chennai

Dr. U. Arun Jaya Kumar, Dr. K. Monisha, Dr. Harish Narayanan


Abstract: The aim of the present study was to investigate the relationship between treatment outcomes of multidrug-resistant tuberculosis (MDR-TB) patients and sputum culture conversion. Factors affecting the time of the culture conversion throughout the whole course of the treatment have rarely been investigated. This study was performed in tertiary care centres, chennai. MDR-TB patients were consecutively enrolled between December 2017 and March 2018. A prospective cohort study was carried out to identify the factors associated with initial culture conversion. Survival analysis was performed using Cox proportional hazards model to compute estimates for time to sputum culture conversion and rate ratios, respectively. Initial sputum culture conversion was reported in 139 out of 160 cases. In all, 139 MDR-TB patients with treatment outcomes were enrolled. Median time to culture conversion among those who converted was 91.5 days (interquartile range, 34.0110.8 days). After multivariable analysis, smoking (HR = 0.44, 95 % CI 0.230.83), drinking (HR = 0.41, 95 % CI 0.210.81), ofloxacin resistance (HR = 0.43, 95 % CI 0.240.76) and sputum smear grade > 1 (HR = 0.51, 95 % CI 0.310.83) were less likely to have culture conversion. Treatment success was observed in 84 patients.


Keywords: Multidrug-resistant tuberculosis, Risk factors, Sputum culture conversion, Treatment outcome


Edition: Volume 7 Issue 10, October 2018,


Pages: 336 - 341



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