Background
Methods
Study design
Participants
Study procedures
Statistical analysis
Ethical approval
Results
Participant’s enrollment and characteristics
Variables | Total n (%) | Male n (%) | Female n (%) | P value |
---|---|---|---|---|
Study
| 863 (100.0) | 421 (48.8) | 442 (51.2) | 0.737 |
Sputum producers
| 664 (76.9) | 326 (49.1) | 338 (50.9) | |
Non sputum producers
| 199 (23.1) | 95 (47.7) | 104 (52.3) | |
Age in years (N = 852)
| mean (SD) | mean (SD) | mean (SD) | |
39.7 (13.9) | 41.2 (14.3) | 38.2 (13.4) |
0.001
| |
Age categories in years (N = 852)
|
Total n (%)
|
Male n (%)
|
Female n (%)
|
0.005
|
<25 | 102 (12.0) | 49 (48.0) | 53 (52.0) | |
25-35 | 269 (31.6) | 113 (42.0) | 156 (58.0) | |
36-45 | 241 (28.3) | 119 (49.4) | 122 (50.6) | |
>45 | 240 (28.2) | 139 (57.9) | 101 (42.1) | |
HIV positive, N = 820 (%)
|
<0.001
| |||
Negative | 345 (42.1) | 196 (56.8) | 149 (43.2) | |
Positive | 475 (57.9) | 207 (43.6) | 268 (56.4) | |
Residence (N = 860)
| 0.411 | |||
Urban | 427 (49.6) | 203 (47.5) | 224 (52.5) | |
Rural | 433 (50.4) | 218 (50.6) | 215 (49.4) | |
X-ray ,N = 779 (%)
|
<0.001
| |||
Suggestive of TB | 433 (55.6) | 258 (66.5) | 175 (44.8) | |
Non suggestive of TB | 346 (44.4) | 130 (33.5) | 216 (55.2) |
Specimens’ characteristics, microscopy and culture results
Colorimetric study (sputum producers) | Total n (%) | Male n (%) | Female n (%) | p |
---|---|---|---|---|
Sputum volume (n = 689) More than 1 ml | 672 (97.5) | 331 (97.6) | 341 (97.4) | 0.858 |
Sputum Quality (n = 681) Purulent-mucopurulent | 223 (32.7) | 117 (35.2) | 106 (30.4) | 0.176 |
Microscopy (N = 664) Positive | 106 (16.0) | 69 (21.2) | 37 (10.9) | <0.001 |
TB Culture (N = 618) Positive | 147 (23.8) | 90 (29.3) | 57 (18.3) | 0.001 |
Xray (N = 605) suggestive | 347 (57.4) | 208 (68.4) | 139 (46.2) | < 0.001 |
String test and sputum induction study (non sputum producers)
|
Total n (%)
|
Male n (%)
|
Female n (%)
|
p
|
Microscopy (N = 198) Positive | 26 (13.1) | 15 (15.8) | 11 (10.7) | 0.288 |
TB Culture (N = 198) Positive | 51 (25.7) | 32 (33.7) | 19 (18.5) | 0.014 |
Xray (N = 174) suggestive | 86 (49.4) | 50 (59.5) | 36 (40.0) | 0.010 |
Both studies
|
Total n (%)
|
Male n (%)
|
Female n (%)
|
p
|
Microscopy (N = 862) Positive | 132 (15.3) | 84 (20.0) | 48 (10.9) | < 0.001 |
TB Culture (N = 816) Positive | 198 (24.3) | 122 (30.3) | 76 (18.4) | < 0.001 |
Xray (N = 779) suggestive | 433 (55.6) | 258 (66.5) | 175 (44.8) | < 0.001 |
Outcomes
Characteristics | OR (95% CI) | P value | AOR (95% CI) | P value |
---|---|---|---|---|
Gender
|
<0.001
|
<0.001
| ||
Female | REF | REF | ||
Male | 1.9 (1.40-2.69) | 2.2 (1.56-3.18) | ||
Age (categories in years)
|
<0.001
|
<0.001
| ||
>45 | REF | REF | ||
36-45 | 1.8 (1.09-2.85) | 1.88 (1.13-3.12) | ||
25-35 | 2.2 (1.40-3.52) | 2.5 (1.56-4.15) | ||
<25 | 3.3 (1.90-5.71) | 3.4 (1.90-6.11) | ||
X-Ray
| ||||
Non Suggestive of TB | REF | |||
Suggestive of TB | 5.0 (3.29-7.57) |
0.001
| ||
Microscopy
| ||||
Negative | REF | |||
Positive | 575 (139.3-2378.9) |
<0.001
| ||
Type of cough
| 0.5751 | |||
Non-productive | REF | |||
Productive | 1.0 (0.77-1.61) | |||
HIV status
| 0.1914 | |||
Negative | REF | |||
Positive | 0.8 (0.57-1.12) | |||
Residence
| 0.977 | |||
Urban | REF | |||
Rural | 1.0 (0.73-1.38) |