Reference values for the PROMIS^® physical function item bank version 2.0 in the general population: a multinational comparison study (Korea, Netherlands, and US).

ABSTRACT:

Background

We aimed to obtain general population-based Korean reference values for the Patient-Reported Outcomes Measurement Information System (PROMIS) Physical Function (PF) item bank v2.0 and to compare them with US and Netherlands reference values.

Methods

In April 2021, we surveyed Korean representative participants (N = 2,124) using the PROMIS PF item bank. We compared the mean T-scores of the Netherlands (N = 1,310) and US populations (N = 1,646) using ANOVA by age group, sex, presence of comorbidities, and general health. We also performed Differential item functioning (DIF) analyses between the US and Korea populations.

Results

In Korean, the PF T-score was 55.3 (SD = 9.1), ranging from 28.7 to 77.6. This score was higher compared to the mean score of 50.0 in

SUBMITTER: Lee J 

PROVIDER: S-EPMC12581265 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature