Psychometric evaluation of an experience sampling method–based patient‐reported outcome measure in functional dyspepsia

• DOI: 10.1111/nmo.14136
• Publication Date: 2021-05-02T08:34:44Z
• Authors: Tim Klaassen; Fabienne G. M. Sm...; Lisa Vork; Jan Tack; Nicholas J. Talley; Magnus Simrén; Qasim Aziz; Alexander C. Ford; Joanna W. Kruimel; José M. Conchillo; Carsten Leue; Adrian A. M. Masclee; Daniel Keszthelyi
• Keywords: Prom; Patient-reported outcome; Experience sampling method

Abstract Background Due to important biases, conventional end‐of‐day and end‐of‐week assessment methods of gastrointestinal symptoms in functional dyspepsia (FD) are considered suboptimal. Real‐time symptom based on the experience sampling method (ESM) could be a more accurate measurement method. This study aimed evaluate validity reliability an ESM‐based patient‐reported outcome measure (PROM) for FD. Methods Thirty‐five patients with FD (25 female, mean age 44.7 years) completed PROM (a maximum 10 random moments per day) diary 7 consecutive days. On day 7, questionnaires were including Nepean Dyspepsia Index (NDI) Patient Assessment Gastrointestinal Symptom Severity (PAGI‐SYM). Key Results Experience corresponding scores significantly associated (ICCs range 0.770–0.917). However, higher (Δ0.329–1.031) than ESM ( p < 0.05). Comparing NDI PAGI‐SYM scores, correlations weaker (Pearson's r 0.467–0.846). Cronbach's α coefficient was good upper = 0.842). First half‐week second showed very consistency 0.913–0.975). Conclusion Inferences Good novel assessing demonstrated. Moreover, this allows individual patterns can interactions between environmental/contextual factors. has potential increase patients' disease insight, provide tools self‐management, improve shared decision making. Hence, tool may aid transition toward personalized health care patients.