Bioequivalence and Bioavailability Forum • Deming-regression, Bland-Altman-plot

Deming-regression, Bland-Altman-plot [Bioanalytics]

posted by Helmut – Vienna, Austria, 2014-02-07 14:46 (4516 d 08:47 ago) – Posting: # 12363
Views: 5,931

Hi Compliance,

sorry for cutting in. If you compare back-calculated concentrations from the machines you have to take into account that both are (uncertain) estimates. Therefore, conventional regression (assuming error-free regressors) is not suitable. Consider Deming-regression (aka orthogonal regression) and/or a Bland-Altman plot (aka Tukey mean-difference plot). See also this thread.
Good luck!

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Complete thread:

Usage of two different make instrument in Parallel study Compliance 2014-02-05 08:30
- Usage of two different make instrument in Parallel study ElMaestro 2014-02-05 08:37
  - Usage of two different make instrument in Parallel study Compliance 2014-02-05 13:10
    - Usage of two different make instrument in Parallel study Ohlbe 2014-02-05 14:28
      - Usage of two different make instrument in Parallel study Compliance 2014-02-07 04:38
        
        Deming-regression, Bland-Altman-plotHelmut 2014-02-07 13:46