Table 2

Pairwise comparison of proportion of households participating in insecticide treatment during Cycle 2 of attack phase Chagas disease vector control campaign, Arequipa, Peru, 2015, by treatment arm and analytic sample

Pairwise comparisonPearson χ2 P values
Intent-to-treat
 Control (1052/1273, 82.6%) versus advanced planning (1057/1267, 83.4%)0.2780.598
 Control (1052/1273, 82.6%) versus block leader recruitment (930/1180, 78.8%)5.7780.016
 Control (1052/1273, 82.6%) versus contingent group lottery (1005/1202, 83.6%)0.4160.519
 Advanced planning (1057/1267, 83.4%) versus block leader recruitment (930/1180, 78.8%)8.5130.004
 Advanced planning (1057/1267, 83.4%) versus contingent group lottery (1005/1202, 83.6%)0.0150.901
 Block leader recruitment (930/1180, 78.8%) versus contingent group lottery (1005/1202, 83.6%)8.9890.003
Per protocol
 Control (1037/1138, 91.1%) versus advanced planning (1044/1138, 91.7%)0.2750.600
 Control (1037/1138, 91.1%) versus block leader recruitment (914/1049, 87.1%)9.0460.003
 Control (1037/1138, 91.1%) versus contingent group lottery (995/1093, 91.0%)0.0060.940
 Advanced planning (1044/1138, 91.7%) versus block leader recruitment (914/1049, 87.1%)12.371<0.0001
 Advanced planning (1044/1138, 91.7%) versus contingent group lottery (995/1093, 91.0%)0.3530.552
 Block leader recruitment (914/1049, 87.1%) versus contingent group lottery (995/1093, 91.0%)8.4120.004