Table 1. Data of anti-CCP, RF, and BsAb for samples included in mixing tests.

Serum No.	Anti-CCP (OD450)	RF (OD450)	BsAb (OD450)
#32	1.300	0.332	0.084
#3	0.075	3.522	0.026
#9	1.215	0.956	0.023
#30	0.556	0.912	0.062
#40	0.947	0.999	0.049
#6	0.067	2.532	0.035
#33	0.085	2.397	0.057
#53	0.055	2.977	0.048
#58	0.069	2.846	0.052
#61	0.061	3.363	0.039

OD450: optical densities at 450 nm with wavelength correction at 620 nm; Anti-CCP: antibodies against cyclic citrullinated peptide; RF: rheumatoid factor; BsAb: bispecific antibodies.