Table 3. Statistical comparison of escape patterns and final escape proportions of An. epiroticus laboratory strain within repellents and ER assay configuration between concentrations.
| Repellents | Concentrations | Escape patterns a | Final escape proportions b | ||
|---|---|---|---|---|---|
| Non-contact | Contact | Non-contact | Contact | ||
| Deltamethrin | LC50vs. DC | 0.5037 | 0.0668 | 0.3714 | 0.0857 |
| Permethrin | LC50vs. DC | 0.5920 | 0.0043* | 0.6571 | 0.0286* |
| Alpha-cypermethrin | LC50vs. DC | 0.3213 | 0.8143 | 0.3714 | 0.6286 |
| DEET | 2.5 vs. 5.0% | 0.2574 | 0.3993 | 0.3141 | 0.5714 |
| Vetiver oil | 2.5 vs. 5.0% | 0.6890 | 0.2863 | 0.6286 | 0.4571 |
| Citronella oil | 2.5 vs. 5.0% | <0.0001* | 0.8947 | 0.0286* | >0.9999 |
Notes.
a
Log-rank tests were applied to Kaplan–Meier survival curves to compare differences in escape patterns (time-to-escape) over the ER assay period.
b
Mann–Whitney U tests were used to compare final escape proportions at the end of the ER assay between concentrations.
*
Significant difference P < 0.05.
% w/v means percent of weight (g) of repellent in the total volume of solution.
LC50; lethal concentration 50, DC; diagnostic concentration.
LC50 of deltamethrin, permethrin, and alpha-cypermethrin are 0.00035%, 0.01030%, and 0.00046%, respectively. DC of deltamethrin, permethrin, and alpha-cypermethrin are 0.006%, 0.349%, and 0.009%, respectively.