Supplementary Material for: Psychometric Evaluation of the Electronic Pain Assessment Tool: An Innovative Instrument for Individuals with Moderate-to-Severe Dementia

2018-01-23T10:05:17Z (GMT) by Atee M. Hoti K. Hughes J.D.
<b><i>Background/Aims:</i></b> Pain is common in aged care residents with dementia; yet it often goes undetected. A novel tool, the electronic Pain Assessment Tool (ePAT), was developed to address this challenging problem. We investigated the psychometric properties of the ePAT. <b><i>Methods:</i></b> In a 10-week prospective observational study, the ePAT was evaluated by comparison against the Abbey Pain Scale (APS). Pain assessments were blindly co-performed by the ePAT rater against the nursing staff of two residential aged care facilities. The residents were assessed twice by each rater: at rest and following movement. <b><i>Results:</i></b> The study involved 34 residents aged 85.5 ± 6.3 years, predominantly with severe dementia (Psychogeriatric Assessment Scale – Cognitive Impairment score = 19.7 ± 2.5). Four hundred paired assessments (<i>n</i> = 204 during rest; <i>n</i> = 196 following movement) were performed. Concurrent validity (<i>r</i> = 0.911) and all reliability measures (κ<sub>w</sub> = 0.857; intraclass correlation coefficient = 0.904; α = 0.950) were excellent, while discriminant validity and predictive validity were good. <b><i>Conclusion:</i></b> The ePAT is a suitable tool for the assessment of pain in this vulnerable population.