Using multiple agreement methods for continuous repeated measures data: a tutorial for practitioners.

ABSTRACT:

Background

Studies of agreement examine the distance between readings made by different devices or observers measuring the same quantity. If the values generated by each device are close together most of the time then we conclude that the devices agree. Several different agreement methods have been described in the literature, in the linear mixed modelling framework, for use when there are time-matched repeated measurements within subjects.

Methods

We provide a tutorial to help guide practitioners when choosing among different methods of assessing agreement based on a linear mixed model assumption. We illustrate the use of five methods in a head-to-head comparison using real data from a study involving Chronic Obstructive Pulmonary Disease (COPD) patients and matched repeate

SUBMITTER: Parker RA 

PROVIDER: S-EPMC7291585 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature