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Table 3 Factors associated with the presence of viable M. tuberculosis bacilli on sputum smear reversion in multivariate analysis.

From: Predicting results of mycobacterial culture on sputum smear reversion after anti-tuberculous treatment: a case control study

Characteristics

Episodes no.

Cul (+) for Mtb

OR (95% CI.)

Any TB drug resistance

Yes

20

11 (55%)

10.33 (1.47-72.60)

 

No

54

11 (20%)

 

Mycobacterial load at reversion

Medium or high

21

11 (52%)

16.74 (0.95-296.48)

 

Low

53

11 (21%)

 

Timing of Sm reversion after treatment

≤ 2 months

14

9 (64%)

16.31 (2.02-131.64)

 

> 2 months

60

13 (22%)

 

Sm reversion before Cul conversion

Yes

28

17 (61%)

29.55 (4.07-214.72)

 

No

46

5 (11%)

 

Findings of chest film at Sm reversion

Not improved

46

19 (41%)

23.57 (2.49-223.38)

 

Improved

28

3 (11%)

 
  1. Abbreviation: Cul, culture; Mtb, Mycobacterium tuberculosis; Sm, smear; TB, tuberculosis
  2. The details of multivariate analysis were listed in Additional file 2: Table S1.