Skip to main content

Table 5 Optimal sample size calculations

From: An improved autocidal gravid ovitrap for the control and surveillance of Aedes aegypti

AGO-B Ovitrap pair
m a D = 0.1 D = 0.2 D = 0.3 m e D = 0.1 D = 0.2 D = 0.3
0.2 383 96 43 2.2 3934 983 437
0.4 341 85 38 5.4 1912 478 212
0.6 319 80 35 9.1 1254 313 139
0.8 304 76 34 13.3 929 232 103
1.0 292 73 32 17.8 737 184 82
1.2 284 71 32 22.6 609 152 68
1.4 276 69 31 27.6 519 130 58
1.6 270 68 30 32.9 452 113 50
1.8 265 66 29 38.3 400 100 44
2.0 260 65 29 44.0 358 90 40
2.2 256 64 28 49.8 324 81 36
2.4 252 63 28 55.8 296 74 33
2.6 249 62 28 61.9 272 68 30
2.8 246 62 27 68.2 252 63 28
3.0 243 61 27 74.7 235 59 26
  1. Comparison of the minimum number of sampling devices required to estimate relative abundance of Ae. aegypti, at three precision levels (D), based on expected mean females collected per AGO-B per day (ma), or expected mean eggs collected per ovitrap pair per day (me). Expected numbers of specimens per trap per day for both devices were aligned using a fitted major axis regression [Log10 (me) = 1.250 + 1.306 Log (ma)].