Fig. 1From: Relationship between pain relief, reduction in pain-associated sleep interference, and overall impression of improvement in patients with postherpetic neuralgia treated with extended-release gabapentinProportion of patients who reported ≥30 % reductions in the VAS or BPI Sleep Interference by Pain scores, or who reported feeling “Much” or “Very Much” improved at the end of G-GR treatmentBack to article page