Research Article

Increased Interleukin-17F is Associated with Elevated Autoantibody Levels and More Clinically Relevant Than Interleukin-17A in Primary Sjögren’s Syndrome

Table 4

Serum levels of IL-17A and IL-17F in the presence and absence of clinical and laboratory manifestations of pSS patients.

Clinical and laboratory parametersIL-17F (pg/mL)IL-17A (pg/mL)
PresenceAbsencePresenceAbsence

Lymphadenectasis12.68 (8.69, 20.08) ()13.09 (10.00, 21.54) ()−0.5190.6049.13 (7.88, 13.38) ()9.75 (8.51, 10.36) ()−0.2680.789
Splenomegaly12.68 (9.22, 22.69) ()13.09 (9.60, 20.26) ()0.1640.879.75 (9.13, 11.59) ()9.44 (7.88, 10.36) ()1.6180.106
Joint involvement14.89 (9.87, 22.81) ()12.68 (9.73, 19.98) ()0.5810.5617.88 (7.88, 9.13) ()9.75 (8.51, 10.98) ()−2.4430.015
Lung involvement12.81 (10.00, 19.42) ()13.22 (9.47, 27.27) ()−0.5250.69.44 (8.51, 10.59) ()9.75 (7.88, 10.98) ()−0.0910.927
WBC ≤ 3.5 × 109/L17.13 (9.60, 34.15) ()12.68 (9.73, 19.42) ()1.5350.1259.75 (9.13, 11.36) ()9.13 (7.88, 10.67) ()1.1280.259
Neutrophils ≤ 1.8 × 109/L15.16 (8.69, 27.27) ()12.68 (10.00, 19.42) ()0.5210.6029.75 (8.51, 10.97) ()9.44 (7.88, 10.90) ()0.3860.998
RBC ≤ 3.5 × 1012/L13.23 (9.47, 28.07) ()12.95 (10.00, 18.85) ()0.7470.4559.44 (7.88, 10.51) ()9.75 (7.88, 11.21) ()−0.6790.497
Hb ≤ 110 g/L12.14 (8.95, 17.99) ()13.77 (9.87, 28.88) ()−1.3150.1899.75 (7.88, 10.98) ()9.59 (7.88, 10.51) ()0.1990.843
PLT ≤ 100 × 109/L12.95 (9.47, 22.07) ()13.22 (10.00, 20.26) ()−0.3630.7189.13 (7.88, 10.51) ()9.75 (8.11, 10.98) ()−0.1830.855
IgA ≥ 4.5 g/L13.77 (10.00, 29.61) ()12.68 (9.47, 19.70) ()0.3530.7259.75 (7.88, 11.59) ()9.59 (7.88, 10.36) ()0.9270.362
IgG ≥ 16 g/L15.44 (10.00, 27.44) ()12.14 (9.21, 17.14) ()2.060.0399.13 (7.88, 10.98) ()9.75 (8.19, 10.36) ()−0.590.555
IgM ≥ 3 g/L14.05 (10.13, 27.77) ()12.68 (9.47, 19.42) ()0.7220.47110.67 (9.13, 11.59) ()9.44 (7.88, 10.36) ()1.9280.054
C3 < 0.78 g/L14.33 (11.60, 22.69) ()12.14 (9.47, 19.42) ()1.1580.2479.75 (8.82, 11.59) ()9.13 (7.88, 10.67) ()1.5860.113
C4 < 0.17 g/L14.88 (12.14, 29.61) ()11.60 (8.95, 18.99) ()2.5250.0129.75 (9.13, 11.59) ()9.44 (7.88, 10.36) ()1.8160.069
ESR ≥ 20 mm/h13.49 (10.00, 22.90) ()12.68 (9.47, 19.98) ()0.5220.6039.75 (7.88, 11.51) ()9.44 (7.88, 10.36) ()0.9960.321
RF ≥ 20 IU/mL18.27 (11.06, 32.07) ()10.53 (8.44, 13.77) ()4.407<0.0019.75 (8.19, 11.59) ()9.13 (7.88, 10.06) ()2.6370.01
Anti-SSA ≥ 200 RU/mL14.88 (10.00, 25.03) ()10.53 (8.69, 16.71) ()2.3750.0189.59 (8.04, 10.36) ()9.75 (7.88, 11.59) ()−0.030.976
Anti-SSB ≥ 20 RU/mL21.00 ± 19.95 ()19.80 ± 21.39 ()0.3040.7629.95 ± 4.16 ()10.73 ± 3.77 ()−1.0190.311
ANA ≥ 1 : 32014.88 (10.00, 29.61) ()11.06 (9.47, 18.27) ()2.1320.0339.44 (8.35, 11.13) ()9.44 (7.88, 10.36) ()0.290.772
ESSDAI ≥ 514.60 (10.53, 22.27) ()10.53 (8.95, 19.42) ()2.1090.0359.44 (7.88, 10.98) ()9.75 (7.88, 10.36) ()0.0210.983