Percentage of pain intensity difference on an 11-point numerical rating scale underestimates acute pain resolution.

@article{Chauny2014PercentageOP,
  title={Percentage of pain intensity difference on an 11-point numerical rating scale underestimates acute pain resolution.},
  author={J-M Chauny and Jean Paquet and Gilles Lavigne and Raoul Daoust},
  journal={European journal of pain},
  year={2014},
  volume={18 8},
  pages={1103-11}
}
BACKGROUND A 50% reduction in pain intensity difference (50%PID) between baseline and follow-up evaluation is commonly accepted as adequate pain relief in emergency departments (EDs). However, 50%PID seems to be problematic with the 11-point numerical rating scale (NRS) since even baseline values are more divisible by 2 (50% reduction) than odd baseline… CONTINUE READING