Preliminary validation of the Edmonton Symptom Assessment Scale – Acute Leukemia (ESAS-AL) in patients with acute leukemia (AL).
210 Background: Patients with AL have numerous symptoms resulting from their disease and its treatment. Here we report on a preliminary evaluation of an ESAS version including AL-specific symptoms (ESAS-AL). Methods: Forty-two inpatients with newly-diagnosed AL (31 AML, 11 ALL), receiving induction chemotherapy, completed baseline assessments with the ESAS-AL and the Memorial Symptom Assessment Scale (MSAS) as part of a clinical trial. The ESAS-AL includes the nine usual ESAS symptoms (rated from 0-10), as well as five symptoms reported by patients with AL in a previous longitudinal study: trouble sleeping, mouth sores, diarrhea, constipation, and itching. Correlations between each ESAS symptom and the corresponding MSAS symptom (rated 1-4) were calculated using Spearman’s correlation. Results: The mean age was 52.86 (SD 15.84). Most correlations were moderate to large and were highly significant (Table). Correlations ranged from 0.86 (ESAS-AL/MSAS Itching) to 0.20 (ESAS-AL Anxiety/MSAS Worried). Correlations for 4 physical symptoms specific to ESAS-AL (itching, diarrhea, mouth sores, and constipation) were among the highest (rs>.70). Correlations between ESAS-AL trouble sleeping and MSAS difficulty sleeping and between ESAS-AL anxiety and MSAS worried were lowest (rs<.30). ESAS-anxiety correlated better with MSAS nervous (rs=.61). Conclusions: Well-defined ESAS-AL physical symptoms are highly correlated with equivalent MSAS symptoms, whereas less well-defined symptoms have weaker correlations. These findings provide preliminary support for the validity of the ESAS-AL. Further data collection for larger-scale validation is ongoing. [Table: see text]