Advertisement
Table 2 Individual epidemiological measures
| PTST- | TSTC | TST+ | Total | Statistical comparison across 3 groups | Statistical comparison of PTST- vs. TSTC + TST+ | Statistical comparison of PTST- + TSTC vs. TST+ | |
|---|---|---|---|---|---|---|---|
| Share bed with index case | |||||||
| No | 122 (85.9%) | 140 (83.3%) | 698 (77.6%) | 960 (79.3%) | |||
| Yes | 20 (14.1%) | 28 (16.7%) | 202 (22.4%) | 250 (20.7%) | |||
| All | 142 | 168 | 900 | 1210 | 0.028 | 0.039 | 0.009 |
| Share room with index case | |||||||
| No | 65 (45.8%) | 83 (49.4%) | 297 (33.0%) | 445 (36.8%) | |||
| Yes | 77 (54.2%) | 85 (50.6%) | 603 (67.0%) | 765 (63.2%) | |||
| All | 142 | 168 | 900 | 1210 | <0.0005* | <0.0005* | <0.0005* |
| Share meals with index case | |||||||
| No | 14 (9.9%) | 16 (9.5%) | 65 (7.2%) | 95 (7.9%) | |||
| Yes | 128 (90.1%) | 152 (90.5%) | 835 (92.8%) | 1115 (92.1%) | |||
| All | 142 | 168 | 900 | 1210 | 0.380 | 0.344 | 0.166 |
| Type of house (muzigo vs other) | |||||||
| Not Muzigo | 75 (52.8%) | 95 (56.9%) | 397 (44.4%) | 567 (47.1%) | |||
| Muzigo | 67 (47.2%) | 72 (43.1%) | 497 (55.6%) | 636 (52.9%) | |||
| All | 142 | 167 | 894 | 1203 | 0.004 | 0.148 | 0.001* |
| Frequency of contact with index case | |||||||
| <1 day/wk | 1 (0.7%) | 2 (1.2%) | 19 (2.1%) | 22 (1.8%) | |||
| 1-3 day | 6 (4.2%) | 7 (4.2%) | 38 (4.2%) | 51 (4.2%) | |||
| 4-6 days | 7 (4.9%) | 5 (3.0%) | 24 (2.7%) | 36 (3.0%) | |||
| daily | 129 (90.1%) | 153 (91.1%) | 816 (90.7%) | 1097 (90.7%) | |||
| Total | 142 | 167 | 897 | 1206 | 0.740 | 0.536 | 0.593 |
| Time spent with index case (hours) | |||||||
| <1 | 3 (2.1%) | 5 (3.0%) | 19 (2.1%) | 27 (2.3%) | |||
| 2-6 | 17 (12.1%) | 16 (9.5%) | 78 (8.8%) | 111 (9.3%) | |||
| 7-12 | 70 (49.6%) | 87 (51.8%) | 511 (57.5%) | 668 (55.8%) | |||
| 13-18 | 29 (20.6%) | 38 (22.6%) | 162 (18.2%) | 229 (19.1%) | |||
| >18 | 22 (15.6%) | 22 (13.1%) | 118 (13.3%) | 162 (13.5%) | |||
| Total | 141 | 168 | 888 | 1197 | 0.659 | 0.339 | 0.539 |
| Number of windows in house | |||||||
| Mean (SD) | 2.6 (2.773) | 2.64 (2.475) | 1.87 (2.056) | <0.0005* | < 0.0005* | 0.029 | |
| Number of rooms in house | |||||||
| Mean (SD) | 3.44 (3.183) | 3.26 (2.541) | 2.70 (2.383) | <0.0005* | < 0.0005* | 0.041 | |
| # People in household/room | |||||||
| Mean | 7.80 (5.235) | 6.76 (4.129) | 6.10 (3.672) | <0.0005* | < 0.0005* | < 0.0005* | |
| Number of TB cases in home | |||||||
| Mean | 1.67 (0.98) | 1.66 (0.867) | 1.61 (.896) | 0.985 | 0.363 | 0.799 | |
| Relationship to index case | |||||||
| Spouse | 6 (4.2%) | 10 (6.0%) | 122 (13.6%) | 138 (11.4%) | |||
| Parent | 3 (2.1%) | 5 (3.0%) | 48 (5.3%) | 56 (4.6%) | |||
| Sibling | 23 (16.2%) | 22 (13.1%) | 113 (12.6%) | 158 (13.1%) | |||
| Avuncular | 24 (16.9) | 29 (17.3%) | 128 (14.2%) | 181 (15.0%) | |||
| Child | 59 (41.5%) | 66 (39.3%) | 325 (36.1%) | 450 (37.2%) | |||
| Grandparent/Child | 3 (2.1%) | 4 (2.4%) | 18 (2.0%) | 25 (2.1%) | |||
| Unrelated | 21 (14.8%) | 27 (16.1%) | 126 (14.0%) | 174 (14.4%) | |||
| Other relative | 3 (2.1%) | 5 (3.0%) | 20 (2.2%) | 28 (2.3%) | |||
| Total | 142 | 168 | 900 | 1210 | 0.060 | 0.102 | 0.003 |
