• Ana Carvajal, Nezka Hribernik, Eva Duarte, Alvaro Sanz-Rubiales, and Carlos Centeno.
• Faculty of Nursing, University of Navarra, Pamplona, Spain. acarvajal@unav.es
• J Pain Symptom Manage. 2013 Jan 1;45(1):129-36.

ContextThe Edmonton Symptom Assessment System (ESAS) is a measure widely used in palliative care for the assessment of symptoms in patients with advanced cancer. The tool has been validated in different languages, including Spanish. A revised version (ESAS-r) was developed by Watanabe et al. in 2010.ObjectivesTo develop the Spanish version of the ESAS-r and examine its psychometric properties.MethodsBased on the original English version, a group of experts created a Spanish version of the ESAS-r and administered it to a group of advanced cancer patients. Patients completed the ESAS and ESAS-r and were asked for their perceptions of the tool. The psychometric properties of the ESAS-r that were analyzed were equivalence, internal consistency, and discriminant validity.ResultsSixty-six patients from Spain and Guatemala participated in the survey. Patients perceived the ESAS-r to be significantly easier to understand and easier to complete than the ESAS. Significantly, patients preferred the ESAS-r (47%) to the ESAS (15%; P<0.0007). As to reliability, we found good internal consistency (Cronbach's alpha 0.86), and the equivalence of the two versions was between 0.71 and 0.94. The ESAS-r discriminates between inpatients and outpatients (Mann-Whitney U test; P=0.02) and among those with different palliative performance status (Spearman's rho for pain, tiredness, drowsiness, lack of appetite, well-being; P<0.01).ConclusionThe ESAS-r is a valid instrument with adequate psychometric characteristics. This version is preferred by patients with advanced cancer. The Spanish version of the ESAS-r can, therefore, replace the use of the ESAS.Copyright © 2013 U.S. Cancer Pain Relief Committee. Published by Elsevier Inc. All rights reserved.

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