Table 3

Average phantom limb pain

Group 1Group 2*
Average PLP
(SD, N)
Average reduction from BL (SD)Average PLP
(SD, N)
Average reduction from BL (SD)
Baseline6.9 (1.7, 11)n/a6.8 (1.7, 13)n/a
Week 43.6 (2.6, 11)3.3 (1.9)5.4 (2.3, 13)1.5 (1.4)
Week 8 (EOT)3.1 (2.8, 11)3.8 (2.2)†4.7 (2.4, 13)2.2 (1.7)†
Month 32.9 (2.8, 10)3.5 (2.3)†5.3 (2.6, 10)1.7 (2.4)
Month 123.8 (3.8, 8)2.6 (3.7)3.5 (2.6, 4)2.0 (2.2)
  • *Group 2 crossed over at week 4 to receive 4 weeks of active stimulation.

  • †P<0.05 compared with group 2 at the end of the placebo period.

  • BL, baseline; EOT, end of treatment; n/a, not applicable; PLP, phantom limb pain.