Analytical and Clinical Evaluation of a Chemiluminescent Immunoassay to Detect Serum Chitinase-3-like Protein 1 in HBV-Related Liver Diseases

Table 3

Evaluation of accuracy.

Calibration solution	Instrumental concentration (ng/mL)	Theoretical concentration (ng/mL)	Bias (%)
Low CHI3L1 concentration	71.24	70.90	0.48
High CHI3L1 concentration	864.20	864.90	0.08

CHI3L1, chitinase-3-like protein 1. Bias (%) = ((instrumental concentration − theoretical concentration)/theoretical concentration) × 100%.