Table 1.
Descriptive statistics of threshold screening tests (TSTs) of commercial and homemade solutions.
| Solution | Concentration (mg/mL) | Threshold test |
Number of spray | Detection time (s) | |
|---|---|---|---|---|---|
| Pass N (%) | Fail N (%) | Mean ± SD | Mean ± SD | ||
| Placebo | – | 44(71) | 18(29) | 15.68 ± 8.04 | 22.08 ± 11.49 |
| Commercial Bitrex™ | 0. 135 | 60(96.8) | 2(3.2) | 5.32 ± 4.18 | 7.96 ± 4.96 |
| Commercial Saccharin | 830 | 58(93.5) | 4(6.5) | 7.83 ± 6.43 | 10.74 ± 10.63 |
| Homemade Bitrex™ | 0. 135 | 57(91.9) | 5(8.1) | 6.23 ± 4.72 | 9.05 ± 5.37 |
| Homemade Saccharin | 830 | 52(83.9) | 10(16.1) | 6.92 ± 4.48 | 11.15 ± 7.19 |
SD: Standard deviation.