Table 2. TF1-9 prevalence difference and number and percentage of EUs modified after implementing hypothetical interventions on nearby face-washing water and latrine coverages.
| Intervention implemented | Reaching elimination target EUs | Maintaining elimination target EUs | |||
|---|---|---|---|---|---|
| Nearby face-washing water minimum coverage target | Latrine minimum coverage target | Prevalence difference* | EUs modified to reach minimum coverage target | Prevalence difference† | EUs modified to reach minimum coverage target |
| Nearby face-washing water interventions | |||||
| 5% | None | 0.0 (0.0, 0.0) | 1 (0.3%) | 0.0 (0.0, 0.0) | 2 (0.8%) |
| 10% | None | 0.0 (0.0, 0.0) | 5 (1.5%) | 0.0 (0.0, 0.0) | 5 (2.1%) |
| 15% | None | 0.0 (-0.1, 0.0) | 13 (3.9%) | 0.0 (0.0, 0.0) | 10 (4.1%) |
| 20% | None | 0.0 (-0.2, 0.1) | 22 (6.6%) | 0.0 (-0.1, 0.0) | 24 (10.0%) |
| 25% | None | -0.1 (-0.2, 0.1) | 36 (10.8%) | 0.0 (-0.1, 0.0) | 38 (15.8%) |
| 30% | None | -0.1 (-0.3, 0.1) | 63 (18.9%) | 0.0 (-0.2, 0.0) | 54 (22.4%) |
| 35% | None | -0.2 (-0.5, 0.0) | 85 (25.5%) | -0.1 (-0.2, 0.0) | 71 (29.5%) |
| 40% | None | -0.4 (-0.6, -0.1) | 115 (34.5%) | -0.1 (-0.3, 0.0) | 88 (36.5%) |
| 45% | None | -0.6 (-0.9, -0.2) | 143 (42.9%) | -0.2 (-0.4, 0.0) | 106 (44.0%) |
| 50% | None | -0.7 (-1.1, -0.3) | 166 (49.8%) | -0.2 (-0.5, 0.0) | 127 (52.7%) |
| 55% | None | -0.9 (-1.3, -0.4) | 190 (57.1%) | -0.3 (-0.5, 0.0) | 144 (59.8%) |
| 60% | None | -1.1 (-1.5, -0.5) | 216 (64.9%) | -0.3 (-0.6, 0.0) | 159 (66.0%) |
| 65% | None | -1.2 (-1.6, -0.6) | 226 (67.9%) | -0.3 (-0.6, 0.1) | 173 (71.8%) |
| 70% | None | -1.3 (-1.8, -0.6) | 248 (74.5%) | -0.3 (-0.6, 0.2) | 183 (75.9%) |
| 75% | None | -1.4 (-2.0, -0.6) | 258 (77.5%) | -0.2 (-0.6, 0.3) | 188 (78.0%) |
| 80% | None | -1.5 (-2.1, -0.6) | 275 (82.6%) | -0.1 (-0.6, 0.6) | 194 (80.5%) |
| 85% | None | -1.6 (-2.3, -0.4) | 285 (85.6%) | 0.1 (-0.6, 0.9) | 200 (83.0%) |
| 90% | None | -1.6 (-2.5, -0.2) | 300 (90.1%) | 0.3 (-0.7, 1.4) | 200 (83.0%) |
| 95% | None | -1.6 (-2.7, 0.1) | 310 (93.1%) | 0.7 (-0.7, 2.3) | 212 (88.0%) |
| 100% | None | -1.6 (-2.9, 0.5) | 327 (98.2%) | 1.0 (-0.8, 3.2) | 234 (97.1%) |
| Latrine use interventions | |||||
| None | 5% | 0.0 (0.0, 0.0) | 2 (0.6%) | 0.0 (0.0, 0.0) | 0 (0.0%) |
| None | 10% | 0.0 (-0.1, 0.0) | 5 (1.5%) | 0.0 (0.0, 0.0) | 0 (0.0%) |
| None | 15% | 0.0 (-0.1, 0.0) | 12 (3.6%) | 0.0 (0.0, 0.0) | 3 (1.2%) |
| None | 20% | 0.0 (-0.2, 0.0) | 18 (5.4%) | 0.0 (0.0, 0.0) | 5 (2.1%) |
| None | 25% | -0.1 (-0.3, 0.0) | 37 (11.1%) | 0.0 (0.0, 0.1) | 12 (5.0%) |
| None | 30% | -0.1 (-0.4, 0.1) | 53 (15.9%) | 0.0 (0.0, 0.1) | 18 (7.5%) |
| None | 35% | -0.2 (-0.5, 0.1) | 70 (21.0%) | 0.0 (0.0, 0.2) | 20 (8.3%) |
| None | 40% | -0.3 (-0.6, 0.0) | 86 (25.8%) | 0.1 (0.0, 0.2) | 25 (10.4%) |
| None | 45% | -0.3 (-0.7, 0.0) | 100 (30.0%) | 0.1 (0.0, 0.3) | 26 (10.8%) |
| None | 50% | -0.4 (-0.8, 0.0) | 108 (32.4%) | 0.1 (0.0, 0.3) | 30 (12.4%) |
| None | 55% | -0.4 (-0.9, 0.0) | 124 (37.2%) | 0.1 (-0.1, 0.4) | 32 (13.3%) |
| None | 60% | -0.4 (-1.0, 0.0) | 134 (40.2%) | 0.1 (-0.1, 0.4) | 41 (17.0%) |
| None | 65% | -0.5 (-1.2, 0.0) | 144 (43.2%) | 0.1 (-0.1, 0.5) | 45 (18.7%) |
| None | 70% | -0.7 (-1.4, -0.1) | 157 (47.1%) | 0.1 (-0.1, 0.5) | 49 (20.3%) |
| None | 75% | -0.8 (-1.6, -0.2) | 174 (52.3%) | 0.1 (-0.1, 0.5) | 57 (23.7%) |
| None | 80% | -1.0 (-1.8, -0.4) | 194 (58.3%) | 0.1 (-0.2, 0.5) | 69 (28.6%) |
| None | 85% | -1.3 (-2.0, -0.6) | 209 (62.8%) | 0.1 (-0.3, 0.6) | 85 (35.3%) |
| None | 90% | -1.6 (-2.3, -0.8) | 238 (71.5%) | 0.0 (-0.4, 0.6) | 122 (50.6%) |
| None | 95% | -1.9 (-2.7, -0.9) | 285 (85.6%) | -0.2 (-0.6, 0.4) | 182 (75.5%) |
| None | 100% | -2.3 (-3.2, -1.0) | 328 (98.5%) | -0.7 (-1.1, 0.4) | 240 (99.6%) |
| Simultaneous interventions | |||||
| 5% | 5% | 0.0 (0.0, 0.0) | 3 (0.9%) | 0.0 (0.0, 0.0) | 2 (0.8%) |
| 10% | 10% | 0.0 (-0.1, 0.0) | 9 (2.7%) | 0.0 (0.0, 0.0) | 5 (2.1%) |
| 15% | 15% | 0.0 (-0.1, 0.0) | 23 (6.9%) | 0.0 (0.0, 0.0) | 13 (5.4%) |
| 20% | 20% | -0.1 (-0.2, 0.0) | 38 (11.4%) | 0.0 (-0.1, 0.0) | 28 (11.6%) |
| 25% | 25% | -0.1 (-0.4, 0.0) | 63 (18.9%) | 0.0 (-0.1, 0.1) | 45 (18.7%) |
| 30% | 30% | -0.3 (-0.6, 0.0) | 96 (28.8%) | 0.0 (-0.2, 0.1) | 64 (26.6%) |
| 35% | 35% | -0.4 (-0.8, -0.1) | 124 (37.2%) | 0.0 (-0.2, 0.1) | 80 (33.2%) |
| 40% | 40% | -0.6 (-1.0, -0.3) | 155 (46.5%) | -0.1 (-0.3, 0.1) | 101 (41.9%) |
| 45% | 45% | -0.8 (-1.3, -0.4) | 182 (54.7%) | -0.1 (-0.3, 0.1) | 119 (49.4%) |
| 50% | 50% | -1.0 (-1.5, -0.6) | 202 (60.7%) | -0.1 (-0.4, 0.1) | 138 (57.3%) |
| 55% | 55% | -1.2 (-1.7, -0.7) | 224 (67.3%) | -0.2 (-0.5, 0.2) | 154 (63.9%) |
| 60% | 60% | -1.4 (-2.0, -0.8) | 248 (74.5%) | -0.2 (-0.5, 0.2) | 167 (69.3%) |
| 65% | 65% | -1.6 (-2.2, -1.0) | 255 (76.6%) | -0.2 (-0.5, 0.3) | 180 (74.7%) |
| 70% | 70% | -1.8 (-2.4, -1.1) | 269 (80.8%) | -0.1 (-0.6, 0.4) | 192 (79.7%) |
| 75% | 75% | -2.0 (-2.7, -1.3) | 278 (83.5%) | -0.1 (-0.6, 0.5) | 197 (81.7%) |
| 80% | 80% | -2.2 (-2.9, -1.4) | 289 (86.8%) | 0.1 (-0.6, 0.8) | 204 (84.6%) |
| 85% | 85% | -2.4 (-3.2, -1.5) | 302 (90.7%) | 0.2 (-0.6, 1.1) | 213 (88.4%) |
| 90% | 90% | -2.6 (-3.4, -1.5) | 312 (93.7%) | 0.4 (-0.7, 1.6) | 217 (90.0%) |
| 95% | 95% | -2.9 (-3.7, -1.5) | 319 (95.8%) | 0.4 (-0.9, 1.9) | 231 (95.9%) |
| 100% | 100% | -3.1 (-4.0, -1.6) | 332 (99.7%) | 0.0 (-1.2, 2.3) | 241 (100.0%) |
Figures shown in prevalence differences columns are the estimates and 95% confidence intervals. The prevalence difference is estimated as the mean predicted probability from the hypothetical intervention scenario minus the mean predicted probability from the observed data. Figures shown in the EUs modified columns are the count and percentage of EUs modified. EU: Evaluation Unit, TF1-9: trachomatous inflammation—follicular among children aged 1–9 years.
*Model-derived TF1-9 prevalence in the observed data was 4.7%.
†Model-derived TF1-9 prevalence in the observed data was 2.0%.