Combining Calcitonin and Procalcitonin and Rheumatoid Arthritis-Related Biomarkers Improve Diagnostic Outcomes in Early Rheumatoid Arthritis

Table 6

Correlation coefficients of the low-value groups of CT with clinical and serological measures in early RA.

Variable	Disease duration	RF	Anti-CCP	Anti-RA33
Low groups of CT	0.065	0.291	0.120	-0.174
High groups of CT	0.374	0.018	0.029	0.072