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 .
[Oral morphine administration for children's traumatic pain].
OBJECTIVES To study the compliance of prescription , the efficacity and the adverse events of oral morphine used in the pediatric emergency department ( ED ) in traumatic pains . METHOD This prospect i ve study was conducted in the ED from october 2002 to september 2003 . Children aged six months to 16 years with a visual analogic scale ( VAS ) score higher than 70 or with a traumatic member deformation received oral morphine ( 0,5 mg/kg ) .  Pain was assessed every 30 minutes using two scales : behavioral observation by the faces scale  and  objective pain scale ( OPS ) for children less than five years , behavioral observation by the  faces scale and self-report by  VAS  for children older than five years . The compliance of prescription , the pain scores and the adverse events were studied . RESULTS Ninety-one children received oral morphine and seventy-four children were studied . Seventy per cent of prescriptions were in accordance with the recommendations . For patients younger than five years a rapid decrease of pain was observed in thirty minutes . The pain 's reduction was respectively 79 and 84 % with faces scale and OPS when they left ED . For children older than five years , pain 's reduction was more important and more rapid when pain assessment was made by nurses than when it was self-reported in the first hour ( pain reduction 58,2 and 36,1 % ) . When leaving , pain reduction was the same with the two different assessment s. No major adverse event was noted . CONCLUSION Use of oral morphine in ED is simple , with a few numbers of adverse events . None was severe . Efficiency is correct after 30 to 60 minutes
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 .