Average phantom pain: at least 28% improvement at 4 weeks from baseline stratified by baseline pain level in patients with phantom pain at baseline
| Baseline average phantom pain (NRS) | Active (n=69)* | Placebo (n=73) | ||
| Improvement ≥28% | Improvement ≥28% | |||
| Yes (n=37) | No (n=32) | Yes (n=20) | No (n=53) | |
| Mild pain (<5) | 48% (12) | 52% (13) | 22% (5) | 78% (18) |
| Moderate pain (5–7)* | 59% (19) | 41% (13) | 28% (12) | 72% (31) |
| Severe pain (>7) | 50% (6) | 50% (6) | 43% (3) | 57% (4) |
| Percent† | 54 | 46 | 27 | 73 |
Data reported as row percentage within treatment (n).
n=7 missing outcome at 1 month, replaced using the last observation carried forward method for active (n=3) and placebo (n=4) groups.
*n=2 excluded due to a missing postintervention pain measurement (n=1) and a lack of phantom limb pain at baseline (n=1).
†Percent: total column percentage within treatment.
NRS, Numeric Rating Scale.