All 4 faces pain scales were found to be adequately supported by psychometric data .
When given a choice between faces scales , children preferred the WBFPRS .
Confounding of pain intensity with affect caused by use of smiling and crying anchor faces is a disadvantage of the WBFPRS .
: For clinical use , we found no grounds to switch from 1 faces scale to another when 1 of the scales is in use .
CONTEXT : Numerous faces scales have been developed for the measurement of  pain intensity in children .
It remains unclear whether any one of the faces scales is better for a particular purpose with regard to validity , reliability , feasibility , and preference .
OBJECTIVES : To summarize and systematic ally review faces pain scales most commonly used to obtain self-report of pain intensity in children for evaluation of reliability and validity and to compare the scales for preference and utility .
Parental assessment and management of children's postoperative pain: a randomized clinical trial
As day case surgery increases , one needs to improve the management of pain in children at home . This study wished to determine whether the use of a self-report pain scale would result in children receiving more analgesia . Eighty-eight children aged four to 12 years undergoing tonsillectomy , whose parents agreed they could participate , were r and omly assigned into two groups . Group A received the routine postoperative advice and a three-day prescription of paracetamol , ibuprofen and codeine . In addition , group B used the Wong — Baker Faces Pain Scale .  Seventy-two children completed the study . There was no difference in the total number of analgesics administered to children in the two groups ( p = 0.26 , Mann— Whitney U-test ) . It appears that a self-report pain scale does not improve the postoperative management of pain in children at home
All 4 faces pain scales were found to be adequately supported by psychometric data .
When given a choice between faces scales , children preferred the WBFPRS .
Confounding of pain intensity with affect caused by use of smiling and crying anchor faces is a disadvantage of the WBFPRS .
: For clinical use , we found no grounds to switch from 1 faces scale to another when 1 of the scales is in use .
CONTEXT : Numerous faces scales have been developed for the measurement of  pain intensity in children .
It remains unclear whether any one of the faces scales is better for a particular purpose with regard to validity , reliability , feasibility , and preference .
OBJECTIVES : To summarize and systematic ally review faces pain scales most commonly used to obtain self-report of pain intensity in children for evaluation of reliability and validity and to compare the scales for preference and utility .