Table 1 Distribution of patient variables across the 3 main MTB lineages in peri-urban Kampala
Variable | Category | Patients characteristics (n, %) | L4-U (n=788) | L4-NU (n=289) | L 3 (n=136) | P-value* |
|---|---|---|---|---|---|---|
Age1 | > 30 years | 757 (69) | 503 (70) | 173 (66) | 81 (68) | 0.44 |
≤ 30 years | 340 (31) | 213 (30) | 89 (34) | 38 (32) | ||
Sex2 | Female | 503 (46) | 325 (45) | 120 (46) | 58 (49) | 0.79 |
Male | 594 (54) | 391 (55) | 142 (54) | 61 (51) | ||
HIV status3 | Negative | 669 (65) | 450 (66) | 157 (62) | 62 (60) | 0.29 |
positive | 367 (35) | 230 (34) | 95 (38) | 42 (40) | ||
Cavity4 | No | 441 (47) | 296 (48) | 106 (48) | 39 (39) | 0.25 |
Yes | 500 (53) | 324 (52) | 115 (52) | 61 (61) | ||
Ethnicity5 | Non-bantu | 64 (6) | 39 (6) | 14 (6) | 11 (9) | 0.27 |
Bantu | 984 (94) | 641 (94) | 238 (94) | 105 (91) | ||
Smoking6 status | Never smoked | 659 (62) | 443 (65) | 155 (60) | 61 (52) | 0.03 |
Current or ever smoked | 401 (38) | 243 (35) | 102 (40) | 56 (48) | ||
BMI7 | Weight loss | 557 (49) | 374(50) | 121(44) | 62(48) | 0.19 |
No loss | 588 (51) | 368(50) | 154(56) | 66(52) | ||
Level of education8 | Low | 377 (35) | 248 (36) | 93(36) | 36(31) | 0.52 |
High | 688 (65) | 444(64) | 163(64) | 81(69) | ||
Drinking alcohol9 | Yes | 162 (21) | 106 (21) | 40(21) | 16(22) | 0.99 |
No | 611 (79) | 402(79) | 151(79) | 58(78) | ||
Income10 | Low | 270 (46) | 162(44) | 69(46) | 39 (61) | 0.048 |
High | 314 (54) | 203(56) | 82 (54) | 29 (39) | ||
diabetic Patients11 | Yes | 12 (1) | 8(2) | 3(2) | 1(2) | 0.97 |
No | 922 (99) | 604(98) | 224(98) | 94(98) | ||
Presence of BCG scar12 | Yes | 756 (62) | 488 (62) | 183 (63) | 85 (63) | 0.92 |
No | 456 (38) | 299 (38) | 106 (37) | 51 (38) | ||
Night sweets13 | No | 533 (47) | 340(46) | 133(49) | 60 (47) | 0.69 |
Yes | 608 (53) | 401 (54) | 139(51) | 68 (53) | ||
TB in the past14 | Yes | 17 (2) | 10 (2) | 3 (2) | 4 (4) | 0.18 |
No | 953 (98) | 619 (98) | 239 (98) | 95 (96) | ||
Hemoptysis15 | No | 173 (15) | 111(15) | 43(16) | 19 (15) | 0.95 |
Yes | 972 (85) | 632(85) | 231(84) | 109 (85) | ||
Swollen lymph nodes16 | No | 46 (6) | 26 (5) | 16 (8) | 4 (5) | 0.26 |
Yes | 727 (94) | 482(95) | 175(91) | 70 (95) | ||
Extent of lung involvement17 | Normal/mild | 733 (73) | 475 (72) | 180 (75) | 78 (76) | 0.58 |
Advance/far advanced | 271 (27) | 185 (28) | 61 (25) | 25 (24) | ||
Smear grade18 | ≤10 AFB/field | 227 (33) | 146 (33) | 65 (37) | 16 (24) | 0.1377 |
>10 AFB/field | 454 (67) | 294 (67) | 109 (63) | 51 (76) |