Table 2.
Expected pain levels in active and placebo acupuncture conditions
| −2 min | 13 min | 28 min | ||||
|---|---|---|---|---|---|---|
| Mean | sd | Mean | sd | Mean | sd | |
| Actual group allocation | ||||||
| Active acupuncture | ||||||
| Expected pain intensity | 2.73 | 1.48 | 3.11 | 1.90 | 4.33 | 1.16 |
| Expected pain unpleasantness | 2.78 | 1.71 | 3.20 | 2.04 | 3.86 | 2.57 |
| Placebo acupuncture | ||||||
| Expected pain intensity | 3.12 | 1.54 | 3.34 | 2.67 | 3.00 | 1.79 |
| Expected pain unpleasantness | 3.08 | 1.77 | 3.35 | 2.48 | 3.87 | 2.64 |
| Perceived group allocation | ||||||
| Active acupuncture | ||||||
| Expected pain intensity | 2.79 | 1.43 | 2.52 | 1.83 | 3.00 | 1.79 |
| Expected pain unpleasantness | 2.58 | 1.55 | 2.49 | 1.72 | 2.92 | 2.16 |
| Placebo acupuncture | ||||||
| Expected pain intensity | 3.16 | 1.61 | 4.07 | 2.12 | 4.33 | 1.16 |
| Expected pain unpleasantness | 3.37 | 1.90 | 4.22 | 2.54 | 5.00 | 2.67 |
Expected pain intensity and expected pain unpleasantness levels in active and placebo acupuncture groups are listed at −2 min, 13 min, and 28 min for both actual and perceived group allocation.