Table 2.

Relationship between the periodontal SUV and the clinical parameters at baseline

	r	p*
ACPA (U/ml)	0.354	0.01
Age (year)	0.206	0.11
RF (mg/dl)	0.073	0.59
DAS28-CRP	−0.228	0.08
Disease duration (year)	0.049	0.72
WBC (/μl)	−0.029	0.83
MMP-3 (ng/ml)	−0.107	0.43

*Spearman’s rank correlation test

Abbreviations: ACPA anti-cyclic citrullinated peptide antibody, RF rheumatoid factor, DAS Disease Activity Score, WBC white blood cell, MMP-3 matrix metalloproteinase 3