Table 4 Physical integrity – comparison of estimates of the average hole index, hole area and hole circumference for a) Interceptor LN; b) alpha-cypermethrin CTN
a) | Interceptor LN | ||||||||
Survey (month) | Hole index | Hole area (cm2) | Hole circumference (cm) | ||||||
Mean (1SD) | Median (IQR) | Geometric mean | Mean (1SD) | Median (IQR) | Geometric mean | Mean (1SD) | Median (IQR) | Geometric mean | |
0 | 0 (0) | 0 (0) | 0 | 0 (0) | 0 (0) | 0 | 0 (0) | 0 (0) | 0 |
6 | 139 (351) | 2 (0–83) | 7 | 83 (193) | 2 (0–69) | 6 | 59 (113) | 6 (0–48) | 8 |
12 | 170 (630) | 2 (0–68) | 7 | 88 (263) | 1 (0–75) | 6 | 54 (118) | 5 (0–65) | 7 |
24 | 442 (696) | 78 (3–533) | 46 | 282 (393) | 84 (3–404) | 37 | 194 (240) | 63 (11–326) | 45 |
36 | 332 (442) | 126 (30–549) | 70 | 229 (283) | 102 (33–346) | 60 | 162 (187) | 127 (36–212) | 54 |
b) | alpha-cypermethrin CTN | ||||||||
Survey (month) | Hole index | Hole area (cm2) | Hole circumference (cm) | ||||||
Mean (1SD) | Median (IQR) | Geometric mean | Mean (1SD) | Median (IQR) | Geometric mean | Mean (1SD) | Median (IQR) | Geometric mean | |
0 | 0 (0) | 0 (0) | 0 | 0 (0) | 0 (0) | 0 | 0 (0) | 0 (0) | 0 |
6 | 121 (324) | 5 (1–51) | 12 | 91 (257) | 4 (1–60) | 10 | 73 (186) | 16 (4–53) | 15 |
12 | 205 (458) | 8 (0–173) | 14 | 134 (253) | 6 (0–87) | 12 | 95 (161) | 19 (0–76) | 14 |
24 | - | - | - | - | - | - | - | - | - |
36 | - | - | - | - | - | - | - | - | - |