Table 3. Short-term analytical and biological variation by hs-cTnI assays.
AbbottaBeckmanaRoche (E170)bSiemensaSingulexc
CV-A,d %13.814.57.813.08.3
CV-I, %15.26.115.012.99.7
CV-G, %70.534.8NA12.357
Index of individuality0.220.46NA0.110.21
RCV, %eNANA47.0NANA
RCV increase, %f69.363.8NA57.546.0
RCV decrease, %f−40.9−38.9NA−36.5−32
Within-individual mean, ng/L3.54.9NA5.52.8
  • a Apple et al. (38).

  • b Vasile et al. (36).

  • c Wu et al. (35).

  • d CV-A, analytical CV; CV-I, within-individual CV; CV-G, between-individual CV; NA, not available; RCV, relative change value.

  • e RCV percentage applies to the parametric data.

  • f RCV increase and decrease percentages refer to nonparametric data and are log-transformed.