COA At-a-Glance
Evidence of cognitive interviewing of draft instrument in target patient population
Evidence of internal consistency
Evidence of test-retest or inter-rater reliability
Evidence of concurrent validity
Evidence of known-groups validity
Evidence of ability to detect change over time
Evidence of responder thresholds
Inclusion of the COA in product labelling
- Overview
- Content Validity
- Reliability
- Validity
- Ability to Detect Change
- Responder Thresholds
- Reference(s) of development / validation
- Other references
- Inclusion of the COA in product labelling
- Inclusion of the COA in product labelling (agency, drug, drug approval date, COA results) from PROLABELS search
- Existence of Scoring / Interpretation / User Manual
- Original language and translations
- References of translations
- Authors and contact information
- Condition of use: copyright
- Website
- Review copy
Overview
Instrument Name: Face, Legs, Activity, Cry, Consolability Behavioral Scale
Abbreviation: FLACC
Points for Consideration:
FLACC has a high degree of usefulness for cognitively impaired and many critically ill children; can be used with children who are unable to communicate their pain; always elicit support from parents or carers to help with pain assessment.
Description of Tool:
The Face, Legs, Activity, Cry, Consolability Behavioural Scale (FLACC) is a 5-item ClinRO developed to provide a simple, consistent method for physicians and nurses to identify, document and evaluate postoperative pain in children aged 2 months-7 years. The FLACC tool incorporates five categories of behaviour previously used in other scales. Clinicians are asked to observe legs and body uncovered in patients who are awake for at least 2-5 minutes, or 5 minutes or longer if asleep, and rate the patients behaviour on a 3-level scale. Higher scores represent more severe discomfort and/or pain.
Other Related Tools (if applicable):
The revised Face, Legs, Activity, Cry, Consolability Behavioural Scale.
Categories within the FLACC were unchanged in the revised tool, however, descriptors were added to incorporate those that were most conistently associated with pain in individuals with cognitive impairment.
Minimum Qualification Required by COA Administrator: PhD or MA
Comment:
None
Year: Developed: 1997 Revised: 2008 (specific descriptors associated with pain were incorporated)
Objective of Development:
To evaluate postoperative pain in young children
Population of Development: Age range (therapeutic indication):
Age range: ages 2 months-7 years; 4-19 years with cognitive impairment (Postoperative pain)
Pediatric Population(s) in which COA has been used:
Children with cognitive impairment including cerebral palsy; General population sample of children with pain; Middle ear ventilation; Syndrome with cognitive impairment and Autism.
COA type: ClinRO
Number of Items 5
Mode of Administration: Clinician-rated
Data Collection Mode: Paper and pen or digital administration
Time for Completion: No information
Response Scales: 3-point Likert scale ranging from 0 to 2. Face: 0="Relaxed face, eye contact and interest in surroundings", 1= "Worried look to face, with eyebrows lowered. Eyes partially closed, cheeks raised, mouth pursed", 2="Deep furrows in forehead, with eyes closed, open mouth and deep lines around nose/lips" Legs: 0="Usual tone and motion to limbs (legs and arms)", 1="Increase tone, rigidy, tense, intermittend flexion/extension of limbs", 2="Hyper tonicity, legs pulled tight, exaggerated flexion/extension of limbs, tremors" Activity: 0="Moves easily and freely, normal activity/restrictions", 1="Shifts positions, hesitant to move, guarding, tense torso, pressure on body part", 2="Fixed position, rocking, side-to-side head movement, rubbing body part" Cry: 0="No cry/moan awake or sleep", 1="Occasional moans, cries, whimpers, sighs", 2="Frequent/continuous moans, cries, grunts" Consolability: 0="Calm and does not require consoling", 1="Responds to comfort by touch or talk in 1/2-1 minute", 2="Requires constant comforting or unable to console"
Summary of Scoring:
Available scores: Global score ranging from 0 to 10
Weighting: No
Score Interpretation: Higher score= Severe discomfort and/or pain.
Content Validity
Evidence of Literature Review: Yes (revised FLACC)
Evidence of Instrument Review: Yes (original FLACC)
Evidence of Clinical or Expert Input: Yes (original and revised FLACC)
Evidence of concept elicitation in target patient population: Yes (revised FLACC)
Evidence of a Saturation Grid: None identified
Evidence for Selection of Data Collection Method: None identified
Recall/Observation Period: Present time (2-5 minutes observation if patient is awake, 5 minutes obseravtion or longer if patient is asleep)
Evidence for Selection of Reponse Options: None identified
Evidence of cognitive interviewing of draft instrument in target patient population: None identified
Evidence of Preliminary Scoring of Items and Domains: None identified
Evidence related to respondent and administrator burden: None identified
Evidence of a Conceptual Framework: None identified
Evidence of an item-tracking matrix: None identified
Evidence related to item selection: None identified
Evidence of re-testing the final version: None identified
Reliability
Internal consistency (Cronbach's alpha): None identified
Evidence of internal consistency: None identified
Test-retest Reliability (ICC):
Malviya S (2006)
Test-retest reliability
ICC=0.97 (CI=0.92 to 0.99)
Was a definition of stability applied to identify stable patients: No
Time frame between the two administrations: 2-3 weeks
Population/Disease: Childen (aged 4-19 years) with cognitive impairment and acute postoperative pain; n=52
Inter-rater/ inter-interviewer reliability (kappa):
Merkel SI (1997)
Interrater reliability
- Correlation Coefficient used: not stated. Reliability for the FLACC scores was r[87]=0.94; p<0.001, 69%, 0.52 for the Face, 87%, 0.67 for Legs, 89%, 0.72 for Activity, 91%, 0.82 for Cry and 78%, 0.66 for Consolability subscales
- Population/Disease: Children aged 2-7 months who had undergone a variety of elective surgical procedures; n=30
Malviya S (2006)
Interrater reliability
- Correlation Coefficient used: Spearman's p, ICC and % agreement with kappa statistics.
Face: ICC=0.86 (0.83–0.89); p<0.001; % agreement (k)=53–81 (0.57)
Legs: ICC=0.77 (0.70–0.83); p<0.001; % agreement (k)=46–86 (0.44)
Activity: ICC=0.75 (0.68–0.80); p<0.001; % agreement (k)=50–78 (0.45)
Cry: ICC=0.87 (0.83–0.89); p<0.001; % agreement (k)= 46–89 (0.55)
Consolability: ICC=0.76 (0.70–0.81); p<0.001; % agreement (k)= 64–82 (0.48)
Total score: ICC=0.90 (0.87–0.92); p<0.001; % agreement (k)=NA
Coded pain scores (mild 0-3, moderate 4-6 and severe 7-10): ICC=0.83 (0.78–0.86); p<0.001; % agreement (k)=35–89 (0.50)
Children with spasticity: Legs and activity: 42-84% (k=0.41)
Children without spasticity: Legs and activity: 33-89% (k=0.53)
- Population/Disease: Children (aged 4-19 years) with cognitive impairment and acute postoperative pain; n=52
Evidence of test-retest or inter-rater reliability: Yes
Validity
Concurrent validity (convergent, divergent):
Merkel SI (1997)
- Correlation coefficient used: Pearson's r
- Measures:FLACC; Global rating of pain; Objective Pain Scale (OPS)
- Results:
FLACC and global ratings of pain: (r[47]=0.41; p>0.005)
FLACC and OPS: (r=.80; p>0.001)
- Population/Disease: Children aged 2-7 months who had undergone a variety of elective surgical procedures; n=29
Malviya S (2006)
Correlation coefficient used: Spearman's p
Measures: nurse-rated FLACC bedside observer; FLACC bedside observer; FLACC video observer; parent-rated 0-10 Visual Analog Scale (VAS) (0=no pain to 10=worst possible pain); child self-reported pain score using a 0-10 numbers scale, simplified faces scale, or a simple word scale (small, medium, big pain); Nursing Assessment of Pain Intensity (NAPI) video observer.
Results:
Nurse FLACC and parent: 0.74 (p<0.01)
Nurse FLACC and child: 0.78 (p<0.01)
Nurse FLACC and NAPI: 0.78 (p<0.01)
Bedside FLACC and parent: 0.82 (p<0.01)
Bedside FLACC and child: 0.86 (p<0.01)
Bedside FLACC and NAPI: 0.87 (p<0.01)
Video observer FLACC and parent: 0.65 (p<0.01)
Video observer FLACC and child: 0.86 (p=0.051)
Video observer FLACC and NAPI31/10/2024 0.78 (p<0.01)
Population/Disease: Childen (aged 4-19 years) with cognitive impairment and acute postoperative pain; n=52
Known-group validity:
None identified
Evidence of Translatability Assessment: None identified
Evidence related to missing data: None identified
Evidence for Selection of Recall Period: None identified
Evidence of Administration Instructions and Training Provided: Yes
Evidence of concurrent validity: Yes
Evidence of known-groups validity: None identified
Evidence of ability to detect change over time: Yes
Ability to Detect Change
Ability to detect change (Responsiveness):
Merkel SI (1997)
- Method: n=29 children were observed and assigned FLACC scores immediately prior to opioid analgesic administration and again at 10, 30 and 60 minute intervals after intraveneous opiates, or at 30 and 60 minutes after oral acetaminophen or oral codeine.
- Results:
Preanalgesia FLACC scores: (7.0 {+ or -} 2.9) were significantly higher (p<0.001) than 10 minutes postanalgesia (1.7 {+ or -} 2.2), 30 minutes postanalgesia (1.0 {+ or -} 1.9) and 60 minutes postanalgesia (0.2 {+ or -} 0.5).
No significant differences were observed between 10, 30 and 60 minute scores.
- Population/Disease: Children aged 2-7 months who had undergone a variety of elective surgical procedures; n=29
Malviya S (2006)
- Method: n=52 children were observed and assigned FLACC scores by nurses (bedside observers and video observers) using the revised and individualized FLACC pain tool following emergence from general anesthesia and 30 minutes following analgesic administration.
- Results: FLACC scores significantly decreased following analgesic administration for bedside nurses' assigned scores (n=20; 6.1 +/- 2.5 vs 2.2 +/-2.4; p<0.001) and video observer's scores (n=20; 6.1 +/- 2.6 vs 1.9 +/- 2.7; p<0.001). Parent-assigned pain scores using a global pain rating (0-10) similarly decreased (n=12; 6.6 +/- 2.4 vs 2.6; p=0.003)
- Population/Disease: Childen (aged 4-19 years) with cognitive impairment and acute postoperative pain; n=52
Responder Thresholds
Responder Thresholds:
None identified
Evidence of responder thresholds: None identified
Reference(s) of development / validation
Merkel, S. I., Voepel-Lewis, T., Shayevitz, J. R., & Malviya, S. (1997). The FLACC: a behavioral scale for scoring postoperative pain in young children. Pediatric nursing, 23(3), 293–297. Full Text Article: https://pubmed.ncbi.nlm.nih.gov/9220806/
Malviya, S., Voepel-Lewis, T., Burke, C., Merkel, S., & Tait, A. R. (2006). The revised FLACC observational pain tool: improved reliability and validity for pain assessment in children with cognitive impairment. Paediatric anaesthesia, 16(3), 258–265. Full Text Article: https://pubmed.ncbi.nlm.nih.gov/16490089/
Other references
Nursing guidelines: https://www.rch.org.au/rchcpg/hospital_clinical_guideline_index/Pain_Assessment_and_Measurement/
Digital version of measure: https://www.mdcalc.com/calc/10545/face-legs-activity-cry-consolability-flacc-scale#why-use
Product label search: https://eprovide.mapi-trust.org/advanced-search?search=Face,%20Legs,%20Activity,%20Cry,%20Consolability%20Behavioral%20Scale&database=prolabels
Regulatory endorsement: https://www.ema.europa.eu/en/documents/scientific-guideline/draft-guideline-clinical-development-medicinal-products-intended-treatment-pain-second-draft_en.pdf
Inclusion of the COA in product labelling
Yes
Inclusion of the COA in product labelling (agency, drug, drug approval date, COA results) from PROLABELS search
Agency: FDA
Device: Tula® System.
Approval date: 24-Nov-2019
Therapeutic indication: Middle ear ventilation
COA results: Primary endpoint
Age: 6 months-12 years
Existence of Scoring / Interpretation / User Manual
Yes
Original language and translations
Original language: English for the USA
Translations (PROQOLID): 15 translations (not specified)
References of translations
None identified
Condition of use: copyright
© 2002, The Regents of the University of Michigan. All rights reserved
Website
None identified
Review copy
https://www.mdcalc.com/calc/10545/face-legs-activity-cry-consolability-flacc-scale