Corpus ID: 216065022

PII: S0304-3959(01)00349-9

@inproceedings{Farrar2001PIIS,
  title={PII: S0304-3959(01)00349-9},
  author={J. Farrar and J. P. Young and L. Lamoreaux and J. L. Werth and R. M. Poole},
  year={2001}
}
Pain intensity is frequently measured on an 11-point pain intensity numerical rating scale (PI-NRS), where 0 1⁄4 no pain and 10 1⁄4 worst possible pain. However, it is difficult to interpret the clinical importance of changes from baseline on this scale (such as a 1or 2-point change). To date, there are no data driven estimates for clinically important differences in pain intensity scales used for chronic pain studies. We have estimated a clinically important difference on this scale by… Expand

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