| Treatment* | First Treatment Prehended | ||
| Sugar Placebo Control | Aroma Tablet | First Choice Frequency | |
| T01: Aroma 1 | 28.0 | 72.0 | 2.6 |
| T02: Aroma 2 | 33.3 | 66.7 | 2.0 |
| T03: Aroma 3 | 60.0 | 40.0 | 1.5 |
| T04: Aroma 4 | 36.4 | 63.6 | 1.7 |