Linking Oswestry Disability Index to the PROMIS pain interference CAT with equipercentile methods.

ABSTRACT:

Background context

When different health care providers use different patient-reported outcome (PRO) instruments, it is challenging to integrate findings that describe particular patient groups or to establish treatment effectiveness across studies. It is therefore critical to develop accurate ways to convert scores between various instruments for clinicians and researchers to make comparisons across health outcomes.

Purpose

To develop a common metric so that scores on the Oswestry Disability Index (ODI) and scores on the PROMIS Physical Function can be converted interchangeably.

Study design/setting

Data were collected from a prospective study. A single-group linking design was used.

Patient sample

The study population included 9020 patients presented to an or

SUBMITTER: Tang X 

PROVIDER: S-EPMC8273094 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature