A repeated measures concordance correlation coefficient

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

The concordance correlation coefficient is commonly used to assess agreement between two raters or two methods of measuring a response when the data are measured on a continuous scale. However, the situation may arise in which repeated measurements are taken for each rater or method, e.g. longitudinal studies in clinical trials or bioassay data with subsamples. This paper proposes a coefficient for measuring agreement between two raters or two methods of measuring a response in the presence of repeated measurements. We illustrate the methodology with examples comparing (1) 1-hr versus 2-hr blood draws for measuring cortisol in an asthma clinical trial and (2) two measurements of percentage body fat, from skinfold calipers and dual energy X-ray absorptiometry.

Original languageEnglish (US)
Pages (from-to)3095-3113
Number of pages19
JournalStatistics in Medicine
Volume26
Issue number16
DOIs
StatePublished - Jul 20 2007

All Science Journal Classification (ASJC) codes

  • Epidemiology
  • Statistics and Probability

Fingerprint Dive into the research topics of 'A repeated measures concordance correlation coefficient'. Together they form a unique fingerprint.

Cite this