Table 5.
Required sample sizes and corresponding PFFI classifications
| Focus (transmission status) | Site | Year | Survey sample size | Required sample size | Probability of null hypothesis, P0 | Probability of alternative hypothesis, Pa | Confidence of freedom | Classificationa |
|---|---|---|---|---|---|---|---|---|
| Mt. Elgon (status: interrupted) | Buriri | 2011 | 63 | 93 | 0.031 | 0.992 | 0.969 | Y |
| Madi Mid North (status: ongoing) | Andra | 2004 | 101 | 401 | 0.961 | 0.049 | 0.039 | N |
| Madulu | 2004 | 99 | 359 | 0.044 | 0.972 | 0.956 | Y | |
| Masaloa | 2004 | 129 | 889 | 0.048 | 0.959 | 0.952 | Y |
aN not free from infection, Y free from infection