Comparison of mean change in pain scales between gabapentin and placebo

Pain scaleGabapentinPlaceboDifferencep Value
MPQ8.9  (2.3)2.2 (2.2)6.7 (3.2)0.03
VAS1.8 (0.5)1.4 (0.3)0.4 (0.6)0.42
PPI1.2 (0.4)0.3 (0.5)0.9 (0.7)0.2
No of patients reporting moderate
or excellent pain relief1-150
1790.11
  • 1-150 Global assessment of pain relief.

  • MPQ=McGill pain questionnaire; PPI=present pain intensity; VAS=visual analogue scale; numbers in parentheses are SD.