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 .
Discordance between self-report and behavioral pain measures in children aged 3-7 years after surgery.
This study examined concurrent self-reports of pain intensity  and behavioral responses in 25 children aged 3 - 7 yr .  Behavioral (  Children 's Hospital of Eastern Ontario Pain Scale , CHEOPS ) and self-report ( the Oucher and Analogue Chromatic Continuous Scale ) measures of pain were obtained following major surgery . The two self-report measures were strongly and significantly correlated , and the pattern of scores over the 36-hr observation period was as expected . There was little relationship between the scores for the self-report and the behavioral measures . Many children who reported severe pain manifested few of the behavioral indicators of distress used in the CHEOPS . This behavioral response pattern may occur commonly in children experiencing pain after surgery and may limit the applicability of current behavioral scales as sole measures of pain intensity in younger children
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 .