Table 3.

Correlation analysis between cytokine levels, age, disease duration, and symptom score of AR patients.

Cytokines	Age		AR duration		Symptom score
	r	p	r	p	r	p
IL-17	−0.151	0.229	−0.009	0.944	0.192	0.125
IL-35	−0.183	0.145	0.078	0.537	−0.003	0.983
IL-22	0.180	0.151	−0.024	0.851	0.048	0.702
TGF-β	0.157	0.212	−0.043	0.733	0.166	0.186
IL-10	−0.145	0.249	−0.198	0.113	−0.032	0.799
IFN-γ	−0.221	0.076	−0.175	0.164	−0.266	0.032

Pearson's correlation test r: correlation coefficient.