Subgroup comparisons of baseline disease activities among SNRA patients grouped according to different diagnostic criteria (1987 ACR criteria vs. 2010 ACR/EULAR criteria) and SPRA patients.

Subgroup comparisons of baseline disease activities among SNRA patients grouped according to different diagnostic criteria (1987 ACR criteria vs. 2010 ACR/EULAR criteria) and SPRA patients.按不同诊断标准（1987年美国风湿病学会（American College of Rheumatology, ACR）标准与2010年美国风湿病学会/欧洲抗风湿病联盟（European League Against Rheumatism, EULAR）标准）分组的血清阴性类风湿关节炎（Seronegative Rheumatoid Arthritis, SNRA）患者，以及血清阳性类风湿关节炎（Seropositive Rheumatoid Arthritis, SPRA）患者的基线疾病活动度亚组比较。