Validity and reliability of the English and translated Chinese versions of the Integrated Palliative care Outcome Scale (IPOS) in Singapore

V Long, YB Cheung, D Qu, K Lim, G Lee, A Yee, Ping Guo, R. Harding, G Yang*

*Corresponding author for this work

Research output: Contribution to journalAbstractpeer-review

Abstract

Background: Measurement of patient-centred outcomes enables clinicians to focus on patient and family priorities.

Aims: This study aimed to evaluate the validity and reliability of the English and translated Chinese IPOS among advanced cancer patients in Singapore.

Methods: IPOS was forward and backward translated from English into Chinese. Structural validity was assessed by confirmatory factor analysis; known-group validity by comparing inpatients and community patients; construct validity by correlating IPOS with Edmonton Symptom Assessment System-revised (ESAS-r) and Functional Assessment of Cancer Therapy–General (FACT-G); internal consistency by Cronbach’s alpha; inter-rater reliability between patient and staff responses; test-retest reliability of patient responses between two timepoints.

Results: 111 English-responding and 109 Chinese-responding patients participated. The three-factor structure (Physical Symptoms, Emotional Symptoms and Communication and Practical Issues) was confirmed with Comparative Fit Index and Tucker-Lewis-Index >0.9 and Root Mean Square Error of Approximation
Conclusion: IPOS in English and Chinese showed good validity, good internal consistency, and good test-retest reliability, except for the Communication and Practical Issues subscale. There was poor inter-rater reliability between patients and staff
Original languageEnglish
Pages (from-to)207-208
Number of pages2
JournalPalliative Medicine
Volume35
Issue number1S
DOIs
Publication statusPublished - 20 Sept 2021
Event17th World Congress Of The European Association For Palliative Care - Online
Duration: 6 Oct 20218 Oct 2021

Bibliographical note

Poster number: Q-23. Poster presentation at the 17th World Congress of the European Association for Palliative Care (EAPC) online on 6th – 8th October 2021

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