Skip to main content

Table 2 Linear Pearson correlation coefficient correlation between VAS and BPI sleep interference by pain

From: Relationship between pain relief, reduction in pain-associated sleep interference, and overall impression of improvement in patients with postherpetic neuralgia treated with extended-release gabapentin

  n Pearson correlation coefficient (r) p-value
≥30 % reduction in VAS 267 0.2795 <0.0001
<30 % reduction in VAS 225 0.0612 0.3608