This method estimates prevalence and confidence limits for variable pool sizes and assumed 100% test sensitivity and specificity. This method should be used if you can be confident that the sensitivity and specificity of the test are both close to 100%, and if pool sizes vary.
For this analysis, it was assumed that samples from 210 individual fruit bats were aggregated into 40 pools of 5 samples each with 10 samples tested individually, that 20 pools and 2 individual samples produced a positive test result and that the test sensitivity and specificity were both 100%. Input values and results for this analysis are summarised in the table below.
Eingabewerte: | ||
---|---|---|
Vertrauensniveau | 0.95 | |
Poolgröße | Anzahl der getesteten Pools |
Anzahl der Pools positiv |
5 | 40 | 20 |
1 | 10 | 2 |
Ergebnisse: | ||
Geschätzte Prävalenz | 0.1339 | |
2.5 Perzentil | 0.0871 | |
97.5 Perzentil | 0.1930 |