Table 1: The serum levels of RANKL, OPG, and associated cytokines in RA patients versus control group.

RANKL 
(pmol/L)
OPG 
(pmol/L)
RANKL/OPGTNF-
(pg/mL)
IL-17 
(pg/mL)
IL-6 
(pg/mL)
IL-4 
(pg/mL)

RA group100.17 ± 22.270.64 ± 0.17169.57 ± 59.385.91 ± 2.5342.56 ± 6.4316.63 ± 12.002.72 ± 0.36
Healthy control group75.82 ± 9.1080.53 ± 0.16149.00 ± 26.712.63 ± 0.2721.10 ± 3.224.16 ± 2.272.72 ± 0.33

Values are expressed as mean ± standard deviation.