Table 2. Pearson's correlations between immune parameters and clinical parameters in primary Sjögren's syndrome patients.
| Immune parameters (saliva) | Clinical parameters | y = ax+b | r (95% CI) |
|---|---|---|---|
| IL-6 | ESR* | y = 0.361x+8.735 | 0.252 (0.049–0.434) |
| IgG† | y = 0.01x+1.16 | 0.248 (0.046–0.430) | |
| IgA | y = 0.013x+10.71 | 0.108 (−0.099–0.306) | |
| IgM | y = 0.024x+16.818 | −0.068 (−0.270–0.140) | |
| IL-17A | ESR | y = 0.009x+4 | 0.036 (−0.166–0.234) |
| IgG | y = 0.000009x+4.13 | 0.001 (−0.198–0.201) | |
| IgA | y = 0.002x+4.778 | −0.101 (−0.296–0.103) | |
| IgM | y = 0.007x+3.52 | 0.106 (−0.097–0.301) | |
| TNF-α | ESR | y = 0.038x+3.486 | 0.171 (−0.070–0.327) |
| IgG‡ | y = 0.002x+1.017 | 0.231 (0.032–0.413) | |
| IgA | y = 0.003x+3.411 | 0.113 (−0.094–0.311) | |
| IgM | y = 0.001x+4.084 | 0.011 (−0.195–0.217) | |
| RF-IgA | ESR | y = 0.011x+1.081 | 0.137 (−0.101–0.285) |
| IgG | y = 0.001x+0.186 | 0.189 (−0.006–0.370) | |
| IgA | y = 0.002x+0.738 | 0.182 (−0.018–0.367) | |
| IgM | y = 0.001x+1.32 | −0.104 (−0.227–0.171) |
*P=0.015; †P=0.017; ‡P=0.024.
Abbreviations: IL-6, interleukin-6; IL-17A, interleukin-17A; TNF-α, tumor necrosis factor-alpha; RF-IgA, rheumatoid factor-immunoglobulin A; ESR, erythrocyte sedimentation rate.