Validity and reliability of Glasgow Coma Scale modified by Palma & Cook (GCSC) in adult patients hospitalized in intensive care unit
Journal of Critical Care Nursing : March 30, 2009, 2 (2); e8595
April 30, 2016
Article Type: Research Article
August 30, 2016
March 30, 2009
S J, Babatabar Darzi
H, Asad Zandi
H, et al. Validity and reliability of Glasgow Coma Scale modified by Palma & Cook (GCSC) in adult patients hospitalized in intensive care unit,
Crit Care Nurs J.
Aims: This study was to determine the validity and reliability of Glasgow Coma Scale modified by Palma & Cook in adult
patients hospitalized in intensive care unit in Iran.
Methods: This study is a methodological research. After translating the English version of GCSC to Persian version by
international quality of life assessment method, 120 patients hospitalized in intensive care unit were selected by non
probablity, convenience, available and purposeful sampling. Eight observers (principal investigator, six nurses and one
anesthesiology resident) assessed patients and independently recorded a GCSC and Glasgow Coma scale scores. In addition,
principal investigator marked a 10cm visual analog scale and recorded Richmond sedation-agitation score in order to
determine the validity of GCSC.
Results: Inter-rater reliability for GCSC score was excellent. Interclass correlation coefficient in trained group was 0.999
and the weighted kappa score for inter-rater agreement was 0.999 (p<0.001). In validity testing, GCSC correlated highly
with visual analog scale (r=0.902) and correlations with Richmond sedation-agitation scale (r=0.899) and with Glasgow
Coma Scale (r=0.970) (p<0.001).
Conclusion: The GCSC is confirmed as a valid and reliable tool for assessing the sedation level in adult patients
hospitalized in intensive care units in Iran.
Sedation, Validity, Reliability, Intensive Care Unit, Adult Patients, Glasgow Coma Scale Modified by Palma & Cook (GCSC)
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