Table 3. Average herpes zoster pain score at week-1, -4, -6, and -12 in the two groups.
| Gabapentin | Placebo | Difference | ||
|---|---|---|---|---|
| Time | Pain VAS | Pain VAS | Difference | p-value |
| Adjusted mean (95% CI) | Adjusted mean (95% CI) | (95% CI) | ||
| 1 week | 3.9 (3.1–4.8) | 3.5 (2.6–4.3) | 0.5 (-0.7–1.6) | 0.451 |
| 4 weeks | 2.2 (1.4–2.9) | 0.8 (0.1–1.5) | 1.4 (0.3–2.4) | 0.009 |
| 6 weeks | 1.2 (0.7–1.7) | 0.3 (-0.1–0.8) | 0.9 (0.2–1.6) | 0.014 |
| 12 weeks | 0.8 (0.4–1.3) | 0.1 (-0.3–0.5) | 7.8 (1.7–13.9) | 0.013 |
Abbreviations: 95%CI: 95% confidence interval; VAS: visual analogic scale.