| Outcome | Change (95% confidence interval) from baseline to week 8 | |||
|---|---|---|---|---|
| Placebo (n = 113) | Gabapentin (Neurontin) 300 mg (n = 114) | Gabapentin 900 mg (n = 120) | P* | |
| Frequency | ||||
| Mean change | −2.25 (−3.33 to −1.17) | −2.86 (−3.84 to −1.88) | −4.21 (−5.00 to −3.42) | .0002 |
| Percentage change | −15 (−28 to −2) | −30 (−39 to −21) | −44 (−53 to −35) | .0006 |
| Duration | ||||
| Mean change | −1.20 (−2.01 to −0.39) | −1.80 (−2.59 to −1.01) | −1.17 (−1.74 to −0.60) | .215 |
| Percentage change | 1 (−13 to 15) | −12 (−30 to 6) | −9 (−26 to 8) | .589 |
| Severity | ||||
| Mean change | −6.61 (−9.68 to −3.54) | −7.75 (−11.2 to −4.35) | −9.94 (−12.0 to −7.85) | .002 |
| Percentage change | −15 (−29 to −1) | −31 (−46 to −16) | −46 (−58 to −34) | .007 |