Table 1.
ALP analytical reagents and measurement conditions in this study.
Table 2.
Regression analyses between the JSCC and IFCC methods in bovine, canine, feline, and human blood samples.
Fig 1.
Scatter plots of the blood alkaline phosphatase (ALP) measured by Japan Society of Clinical Chemistry (JSCC) and International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) reference methods and standardized residual plots from the regression formulas.
Regression formulas are as follows: (A) 116 bovine specimens, y = 0.379x + 0.124, (B) 108 canine specimens, y = 0.289x + 8.291, (C) 103 feline specimens, y = 0.358x + 0.432, (D) 100 human specimens, y = 0.337x + 2.959.
Fig 2.
Results of the regression analysis between JSCC and IFCC in Q1–3 and Q4 in 108 canine samples, represented by the following equations: y = 0.331x − 0.045 and y = 0.286x + 9.293, respectively.
Using these formulas, standardized residuals calculated in Q1–3 and Q4 showed no bias.
Fig 3.
Scatter plots of the measured values (x-axis) and estimated values (y-axis) using the conversion factors.
A: Measured IFCC values (x) and estimated IFCC values (y) obtained from the JSCC values using the conversion factors. B: Measured JSCC values (x) and estimated JSCC values (y) obtained from the IFCC values using the conversion factors.