NPPB and Stillbirth: ,14,15,19 The severity of hypercholanemia is associated with adverse fetal outcomes, e.g. stillbirth when maternal TSBA concentrations exceed 40 μmol/L and markedly so at ≥100 μmol/L.[2], [3], [4] No stillbirth events occurred in our study, although only 3 participants had TSBA concentrations of ≥100 μmol/L; 1 untreated fECG study participant had a TSBA concentration of 187 μmol/L and 2 untreated NT-proBNP assay participants had TSBA concentrations of 100 μmol/L and 151 μmol/L.