Table 2.
Numbers of individuals and households available for follow-up in study of community mobilization (intervention) in Nicaragua and Mexico for dengue prevention
| Mexico | Nicaragua | Total | ||||
|---|---|---|---|---|---|---|
| Intervention | Control | Intervention | Control | |||
| Clusters | 45 | 45 | 30 | 30 | 150 | |
| Households interviewed | 5449 | 5235 | 4080 | 4074 | 18 838 | |
| Mean (range) No of households per cluster | 121 (72-155) | 116 (61-163) | 136 (126-152) | 136 (132-140) | 126 (61-163) | |
| Residents involved | 23 039 | 21 781 | 19 992 | 20 370 | 85 182 | |
| Mean (range) No of residents per household | 4.3 (1-25) | 4.2 (1-16) | 4.9 (1-21) | 5.0 (1-21) | 4.5 (1-25) | |
| Children aged 3-9 contributing saliva samples | 2626 | 2230 | 2320 | 2323 | 9499 | |
| Households with saliva samples of children | 1803 | 1563 | 1657 | 1675 | 6698 | |
| Mean (range) No of children providing samples per household | 0.47 (0-5) | 0.42 (0-5) | 0.56 (0-7) | 0.56 (0-7) | 0.50 (0-7) | |
| Mean (range) No of children providing samples per cluster | 40 (12-94) | 35 (11-72) | 55 (38-75) | 56 (29-73) | 45 (11-94) | |
| Vector breeding sites examined | 21 988 | 21 088 | 13 545 | 13 767 | 70 388 | |
| Mean (range) No of breeding sites per household | 0.15 (0-10) | 0.24 (0-10) | 0.22 (0-24) | 0.33 (0-24) | 0.23 (0-24) | |
| Missing data: | ||||||
| Households declined to participate | 570 | 596 | 122 | 126 | 1414 | |
| Children declined to provide saliva sample | 7 | 20 | 6 | 4 | 37 | |
| Children lost to follow-up second sample | 269 | 325 | 142 | 141 | 877 | |