Table 1.
Baseline characteristics by treatment arm (n, %)
| Control (n=1273) |
Advanced planning (n=1267) |
Block leader recruitment (n=1180) |
Contingent group lottery (n=1202) |
Total sample (n=4922) |
Pearson χ2 | P values | |
| Cycle 1 household status | |||||||
| Sprayed, infested | 49 (3.9%) | 37 (2.9%) | 39 (3.1%) | 40 (3.3%) | 165 (3.4%) | 1.71 | 0.64 |
| Sprayed, not infested | 1004 (78.9%) | 1005 (79.3%) | 892 (75.6%) | 944 (78.5%) | 3845 (78.1%) | 6.01 | 0.11 |
| Closed | 104 (8.2%) | 94 (7.4%) | 74 (6.3%) | 80 (6.7%) | 352 (7.2%) | 3.94 | 0.27 |
| Refused | 98 (7.7%) | 106 (8.4%) | 118 (10.0%) | 123 (10.2%) | 445 (9.0%) | 6.89 | 0.08 |
| Uninhabited | 12 (0.9%) | 15 (1.2%) | 8 (0.7%) | 10 (0.8%) | 45 (0.9%) | 1.84 | 0.61 |
| Vacant lot | 2 (0.2%) | 1 (0.1%) | 48 (4.1%) | 2 (0.2%) | 53 (1.1%) | 130.4 | <0.01 |
| Public lot | 4 (0.3%) | 9 (0.7%) | 1 (0.1%) | 3 (0.3%) | 17 (0.4%) | 7.58 | 0.06 |
Sprayed: house was treated with insecticide by campaign brigade. Infested: campaign staff found evidence of infestation by triatomine insects. Closed: no household member answered the door during campaign visits. Refused: household declined to allow the campaign to spray the house.