Figure 1.
Comparison of pain scores using the McGill Pain Questionnaire obtained from women during labor and from patients in general hospital clinics and an emergency department. The pain rating index (PRI) represents the sum of the rank values for all words chosen from 20 sets of pain descriptions. From Melzack R. The myth of painless childbirth [The John J. Bonica Lecture]. Pain. 1984;19(4):321–337.4 Copyright © 1984. This figure has been reproduced with permission of the International Association for the study of Pain® (IASP®). The figure may not be reproduced for any other purpose without permission.