When considered in light of research from other non-English-speaking samples indicating significant psychometric weaknesses for the NRS-11 and VAS and relative strengths of the FPS-R in some groups, the findings suggest that the FPS-R might be the most appropriate pain intensity scale to use when comparisons across populations from different countries is a goal.
The scores best representing categories of pain for the FPS-R were as follows: no pain, 0 and 2; mild pain, 4; moderate pain, 6; and severe pain, 8 and 10.
Facial Pain Scale Revised (FPS-R) and Face, Leg, Activity, Cry, Consolability (FLACC) scores were used to evaluate pain and anxiety before, during and after procedure.