Table 3. Index and household contact characteristics in Brazil and Ugandan populations.
Results are shown overall and by TST status. Statistical significance is determined using logistic regression models fit with GEE.
| Brazil | Uganda | |||||
|---|---|---|---|---|---|---|
| Overall (N = 838) |
Infected (N = 609) | Not infected (N = 229) | Overall (N = 1153) | Infected (N = 829) | Not infected (N = 324) | |
| Index Case Characteristics | ||||||
| Female | 281(33.5) | 164(35.4) | 77(29.1) | 565 (49.0) | 401 (48.4) | 164 (50.6) |
| Age, mean (SD) | 35.7 (13.4) | 35.1 (13.4) | 37.1 (13.2) | 33.0 (9.0) | 32.8 (9.2) | 33.4 (8.6) |
| Karnofsky Score 𢉤 70 | 42 (5.0) | 21 (3.5) | 21(9.2)a | N/A | ||
| AFB Smear | ||||||
| 1+ | N/A | N/A | N/A | 86 (7.5) | 43 (5.2) | 43 (5.2) |
| 2+ | 168(20.0) | 112(18.4) | 56(24.5) | 143 (12.4) | 81 (10.0) | 62 (19.1) |
| 3+ | 670 (80.0) | 497(81.6) | 173(75.5)a | 924 (80.1) | 705 (85.0) | 219 (67.6)d |
| Culture positive | N/A | 1131 (98.1) | 816 (98.4) | 315 (97.2) b | ||
| Extent of Disease | ||||||
| Normal/ Min | 49(5.9) | 34 (5.6) | 15 (6.6)d | 159 (13.8) | 93 (11.2) | 66 (20.5) |
| Moderate | 406(49.2) | 276 (46.1) | 130 (57.3) | 385 (33.5) | 263 (31.8) | 122 (37.9) |
| Advanced | 371(44.9) | 289 (48.2) | 82 (36.1) | 605 (52.7) | 471 (57.0) | 134 (41.6) d |
| Missing | 12 | 10 | 2 | 3 | 2 | 2 |
| Cavitations present | 615(74.5) | 469 (78.3) | 146 (64.3)d | 633 (54.9) | 499 (60.2) | 134 (41.4) d |
| Missing | 12 | 10 | 2 | 0 | 0 | 0 |
| Co-prevalent case(s)* | 53 (6.3) | 34 (5.6) | 19 (8.3) | 161 (14.0) | 123 (14.8) | 38 (11.7) |
| Household Contact Characteristics | ||||||
| Age (years) | ||||||
| Mean(SD) | 26.1(19.5) | 27.2(19.1) | 22.9(20.2) | 14.7 (12.9) | 15.9 (13.4) | 11.7 (11.2) |
| 0–4 | 74 (8.8) | 45 (7.4) | 29 (12.7) | 249 (21.6) | 155 (18.7) | 94 (29.0) |
| 5–14 | 231 (27.6) | 148 (24.3) | 83 (36.2) | 459 (39.8) | 325 (39.2) | 134 (41.4) |
| 15+ | 533 (63.6) | 416 (68.3) | 117 (51.1)d | 445 (38.6) | 349 (42.1) | 96 (29.6)d |
| Female | 473(56.4) | 351(57.6) | 122(53.3)a | 644 (55.9) | 471 (56.8) | 173 (53.4) |
| Share room with index case | 204 (24.3) | 165(27.1) | 39 (17.0)a | 693 (60.8) | 504 (61.8) | 188 (58.4) |
| Missing | 15 | 13 | 2 | |||
| Smoker | 194 (23.3) | 159(26.4) | 35 (15.3)a | 68 (5.9) | 55 (6.7) | 13 (4.0) a |
| Missing | 7 | 7 | 0 | 1 | 1 | 0 |
| BCG Scar | 686(84.7) | 500(84.7) | 186(84.5) | 845 (73.4) | 590 (71.3) | 255 (78.7) d |
| Missing | 28 | 19 | 9 | 1 | 1 | 0 |
| More than 3 people per room | 37 (4.4) | 21 (23.5) | 16 (7.0) | 337 (29.2) | 239 (28.8) | 98 (30.2) |
a 0.10 < p 𢉤 0.20
b 0.05 < p 𢉤 0.10
c 0.01 < p 𢉤 0.05
d p 𢉤 0.01
*77 households had at least one co-prevalent case in Uganda, found of whom had 2 co-prevalence cases.