Table 6.

Receiver-operating characteristic analysis of rheumatoid factor (RF) and anti-cyclic citrullinated peptide antibody (anti-CCP) from active Rheumatoid arthritis (RA) and RA in remission.

Parameter	HK2	RF	anti-CCP
AUC (95%CI)	0.737 (0.594–0.880)	0.589 (0.443–0.733)	0.618 (0.475–0.761)
P-value	.03	.24	.12
Cut off value	0.0186	–	–
Sensitivity	68.89% (53.35%–81.83%)	–	–
Specificity	70.00% (45.72%–88.11%)	–	–

AUC = Area under the curve; CI = confidence interval; HK2 = Hexokinase 2; RF = rheumatoid factor; anti-CCP = anti-cyclic citrullinated peptide antibody; RA = Rheumatoid arthritis.