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. Author manuscript; available in PMC: 2021 Jun 28.
Published in final edited form as: Clin Chim Acta. 2020 Dec 28;515:16–20. doi: 10.1016/j.cca.2020.12.023

Table 6.

The Passing-Bablok regression equations for the Roche automated assay and IDS iSYS automated assay for β-CTX (references [36;38]).

Subjects Regression equation Slope 95% CI Intercept 95% CI
Healthy volunteers, patients with reheumatoid arthritis [36] iSYS = 1.29 Elecsys −24 1.24, 134 −34, −13
Patients with bone disease [38] iSYS = 1.61 Elecsys −109 1.55, 1.66 −129, −92