Patient Characteristics According to PAD3/4 Cross-Reactive Antibody Status.

Values are mean ± standard deviation or median (interquartile range) unless otherwise noted.
*p-values are for the comparison of the no anti-PAD vs. anti-PAD3/4XR groups.
PAD = peptidyl-arginine deiminase; anti-PAD3/4XR = anti-PAD3/4 Cross-Reactive antibodies; RA = rheumatoid arthritis; RF = rheumatoid factor; CCP2 = 2nd generation anti-cyclic citrullinated peptide antibody; DAS = disease activity score; CRP = C-reactive protein; IL = interleukin; SHS = Total modified Sharp-van der Heijde Score; HAQ = Health Assessment Questionnaire Disability Index; TNF = tumor necrosis factor; DMARD = disease modifying anti-rheumatic drug.

除非另有说明，本数据集数据均以均值±标准差或中位数（四分位间距）形式报告。
*p值用于比较抗PAD阴性组与抗PAD3/4交叉反应性抗体（anti-PAD3/4 Cross-Reactive antibodies，简称anti-PAD3/4XR）组的组间差异。
术语缩写定义如下：
PAD=肽基精氨酸脱亚胺酶（peptidyl-arginine deiminase）；
anti-PAD3/4XR=抗PAD3/4交叉反应性抗体（anti-PAD3/4 Cross-Reactive antibodies）；
RA=类风湿关节炎（rheumatoid arthritis）；
RF=类风湿因子（rheumatoid factor）；
CCP2=第二代抗环瓜氨酸肽抗体（2nd generation anti-cyclic citrullinated peptide antibody）；
DAS=疾病活动度评分（disease activity score）；
CRP=C反应蛋白（C-reactive protein）；
IL=白细胞介素（interleukin）；
SHS=改良总Sharp-van der Heijde评分（Total modified Sharp-van der Heijde Score）；
HAQ=健康评估问卷残疾指数（Health Assessment Questionnaire Disability Index）；
TNF=肿瘤坏死因子（tumor necrosis factor）；
DMARD=改善病情抗风湿药（disease modifying anti-rheumatic drug）。