We did not observe any significant association between γ-TP or α-TP/γ-TP ratio with P1NP or CTX. P1NP was significantly lower in subjects with α-TP concentrations of > 30 μmol/L (α-TP > 30 μmol/L; P1NP: 57.5 [20.7], α-TP < 30 μmol/L; P1NP: 65.7 [24.9] μg/L, p = 0.005).