Increased Serum Interleukin-2 Levels Are Associated with Abnormal Peripheral Blood Natural Killer Cell Levels in Patients with Active Rheumatoid Arthritis

Figure 3

Correlation analysis between serum IL-2 level of RA patients and various clinical indicators. (a–c) Correlation analysis between serum IL-2 level of RA patients and DAS28, ESR, and VAS. (d) Correlation analysis between serum IL-2 level of RA patients and serum RF level (only 61 patients with RA had autoantibodies test results). (e, f) Correlation analysis between serum IL-2 level of RA patients and NK cell number and percentage of NK cells. (g) Correlation analysis between serum IL-2 level of RA patients and Th17/Treg ratio. (h–l) Correlation analysis between serum IL-2 level of RA patients and IL-4, IL-6, IL-10, INF-γ, and TNF-α. Shown are linear regression lines with interpolated 95% confidence interval curves (broken lines).

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