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Computer programs for the concordance correlation coefficient.

Publication ,  Journal Article
Crawford, SB; Kosinski, AS; Lin, H-M; Williamson, JM; Barnhart, HX
Published in: Comput Methods Programs Biomed
October 2007

The CCC macro is presented for computation of the concordance correlation coefficient (CCC), a common measure of reproducibility. The macro has been produced in both SAS and R, and a detailed presentation of the macro input and output for the SAS program is included. The macro provides estimation of three versions of the CCC, as presented by Lin [L.I.-K. Lin, A concordance correlation coefficient to evaluate reproducibility, Biometrics 45 (1989) 255-268], Barnhart et al. [H.X. Barnhart, J.L. Haber, J.L. Song, Overall concordance correlation coefficient for evaluating agreement among multiple observers, Biometrics 58 (2002) 1020-1027], and Williamson et al. [J.M. Williamson, S.B. Crawford, H.M. Lin, Resampling dependent concordance correlation coefficients, J. Biopharm. Stat. 17 (2007) 685-696]. It also provides bootstrap confidence intervals for the CCC, as well as for the difference in CCCs for both independent and dependent samples. The macro is designed for balanced data only. Detailed explanation of the involved computations and macro variable definitions are provided in the text. Two biomedical examples are included to illustrate that the macro can be easily implemented.

Duke Scholars

Published In

Comput Methods Programs Biomed

DOI

ISSN

0169-2607

Publication Date

October 2007

Volume

88

Issue

1

Start / End Page

62 / 74

Location

Ireland

Related Subject Headings

  • Statistics as Topic
  • Software
  • Reproducibility of Results
  • Models, Biological
  • Medical Informatics
  • Magnetic Resonance Angiography
  • Humans
  • Data Interpretation, Statistical
  • Confidence Intervals
  • Carotid Stenosis
 

Citation

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ICMJE
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Crawford, S. B., Kosinski, A. S., Lin, H.-M., Williamson, J. M., & Barnhart, H. X. (2007). Computer programs for the concordance correlation coefficient. Comput Methods Programs Biomed, 88(1), 62–74. https://doi.org/10.1016/j.cmpb.2007.07.003
Crawford, Sara B., Andrzej S. Kosinski, Hung-Mo Lin, John M. Williamson, and Huiman X. Barnhart. “Computer programs for the concordance correlation coefficient.Comput Methods Programs Biomed 88, no. 1 (October 2007): 62–74. https://doi.org/10.1016/j.cmpb.2007.07.003.
Crawford SB, Kosinski AS, Lin H-M, Williamson JM, Barnhart HX. Computer programs for the concordance correlation coefficient. Comput Methods Programs Biomed. 2007 Oct;88(1):62–74.
Crawford, Sara B., et al. “Computer programs for the concordance correlation coefficient.Comput Methods Programs Biomed, vol. 88, no. 1, Oct. 2007, pp. 62–74. Pubmed, doi:10.1016/j.cmpb.2007.07.003.
Crawford SB, Kosinski AS, Lin H-M, Williamson JM, Barnhart HX. Computer programs for the concordance correlation coefficient. Comput Methods Programs Biomed. 2007 Oct;88(1):62–74.
Journal cover image

Published In

Comput Methods Programs Biomed

DOI

ISSN

0169-2607

Publication Date

October 2007

Volume

88

Issue

1

Start / End Page

62 / 74

Location

Ireland

Related Subject Headings

  • Statistics as Topic
  • Software
  • Reproducibility of Results
  • Models, Biological
  • Medical Informatics
  • Magnetic Resonance Angiography
  • Humans
  • Data Interpretation, Statistical
  • Confidence Intervals
  • Carotid Stenosis