Volume 15, Number 2—February 2009
Research
Nontuberculous Mycobacteria, Zambia
Table 1
Results | Patients | Controls |
---|---|---|
Culture exclusively Mycobacterium tuberculosis, no. (%) | 60 (33) | 2 (0.5) |
Culture M. tuberculosis and NTM, no. (%) | 12 (7) | 1 (0.3) |
Culture exclusively NTM,† no. (%) | 19 (11) | 61 (16) |
Culture NTM,‡ no. (%) | 31 (17) | 62 (16) |
2 sputum or gargle samples cultured | 154 | 383 |
2 sputum or gargle samples cultured from NTM-positive person | 29 of 31 NTM-positive patients | 62 of 62 NTM-positive controls |
1 NTM-positive culture in NTM-positive person with 2 samples cultured | 22 of 29 NTM-positive patients | 61 of 62 NTM-positive controls |
1 NTM-positive cultures in NTM-positive person with 2 samples cultured | 4 of 29 NTM-positive patients | 1 of 62 NTM-positive controls |
2 NTM-positive cultures in persons with 2 samples cultured§ | 4 of 154 patients with 2 samples cultured | 1 of 383 controls with 2 samples cultured |
*NTM, nontuberculous mycobacteria.
†Proportion of patients with exclusively NTM was comparable with controls (p = 0.2).
‡NTM isolated with or without M. tuberculosis.
§Significantly more patients than controls had 2 sputum or gargle cultures positive for NTM (p<0.05).
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