a positive trendp = 0.055
WOMAC components showed a positive trend-level correlation between lithocholic acid (feature 3782; rho= 0.380, p = 0.055, [95% CI: −0.001–0.41]) and candidate dehydroxylated BA(feature 4032; rho= 0.350, p = 0.080, [95% CI: −0.154–0.698]) with WOMAC stiffness, and between glycine dehydroxylated candidate (feature 3199) and WOMAC pain (rho= 0.376, p = 0.058, [95% CI: 0.003–0.669]).