Towards standardized patient reported physical function outcome reporting: linking ten commonly used questionnaires to a common metric.

ABSTRACT:

Objectives

Outcomes obtained using different physical function patient reported outcome measures (PROMs) are difficult to compare. To facilitate standardization of physical function outcome measurement and reporting we developed an item response theory (IRT) based standardized physical function score metric for ten commonly used physical function PROMs.

Methods

Data of a total of 16,386 respondents from representative cohorts of patients with rheumatic diseases as well as the Dutch general population were used to map the items of ten commonly used physical function PROMs on a continuous latent physical function variable. The resulting IRT based common metric was cross-validated in an independent dataset of 243 patients with gout, osteoarthritis or polymyalgia in which four o

SUBMITTER: Oude Voshaar MAH 

PROVIDER: S-EPMC6339672 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature