Table 3.
Patients (%) with global perceived effect on pain in the four arms of treatment and totals for the two treatments.
| Treatment period | GBP-1= | Placebo-1= | Wash-out= | GBP-2= | Placebo-2= |
| % some improvement (n) | 45% (10) | 13% (3) | 1 | 8% (2) | 13% (3) |
| % much improvement (n) | 14% (3) | 5% (1) | 0 | 21% (5) | 4% (1) |
| % total (n/N) | 59% (13/22) | a 17% (4/24) | 1 | 29% (7/24) | 18% (4/22) |
| = | Total = GBP = | = | Total = placebo = | = | = |
| % some improvement | 26% (12/46) | 13% (6/46) | |||
| % much improvement | 17% (8/46)β | 4% (2/46) | |||
| % total (n/N) | 43% (20/46)a | 17% (8/46) | |||
| worsened | 13% (6/46) | 9% (4/46) |
GBP-1 is gabapentin treatment before wash-out. GBP-2 is gabapentin treatment after wash-out. 'α' is significant, P < 0.005, 'β' is P < 0.10 McNemar two sided tested gabapentin versus placebo.