Prevalence and Risk Factors of Delayed Sputum Conversion among Patients Treated for Smear Positive PTB in Northwestern Rural Tanzania: A Retrospective Cohort Study
Table 2
Factors associated with delayed sputum smear conversion among 156 study participants treated with potent anti-TB medications.
Variables
Delayed smear conversion
OR (95% CI)
value
No
Yes
Sex
Male
85 (59.4)
12 (92.3)
Female
58 (40.6)
01 (7.7)
8.2 (1.0–64.7)
0.046
Age
38 [29–50]
53 [40–59]
1.1 [1.0–1.1]
0.013
Age group
≥50 years
36 (25.2)
09 (69.2)
<50 years
107 (74.8)
04 (30.8)
6.7 (1.9–23.0)
0.003
Resides in SGM
Yes
17 (11.9)
01 (7.7)
No
126 (88.1)
12 (92.3)
0.6 (0.1–5.0)
0.653
HIV status
Positive
50 (34.9)
05 (38.5)
Negative
93 (65.1)
08 (61.5)
1.2 (0.4–3.7)
0.801
Median AFB+
3 [3-3]
2 [2-3]
6.5 (1.5–27.3)
0.011
Smear bacilli density
AFB 1+
26 (18.2)
00 (00.0)
—
—
AFB 2+
59 (41.3)
02 (15.4)
0.3 (0.1–1.2)
0.086
AFB 3+
58 (40.5)
11 (84.6)
8.1 (1.7–37.7)
0.008
AFB: Acid Fast Bacilli; HIV: human immunodeficiency virus; CI: confidence interval; SGM: Sengerema.
