Table 2. Predicted values of Kf and porosity using theoretical models in normal late pregnancy (36 to 38 wk) and postpartum (>5 mo) (mean ± SEM)a

Assumed ΔP (mmHg)Derived Kf (ml · min−1 · mmHg−1)r0 (Å)ω0Sum of χ2U (Å)± S (Å)Sum of χ2
a ΔP, transglomerular hydrostatic pressure difference; Kf, ultrafiltration coefficient pressure; r0 and ω0, predicted values using isoporous+shunt model for pore radius and shunt contribution, respectively; U and S, predicted values using log-normal model for mean pore radius and standard deviation of pore radius about the mean, respectively.
Late Pregnancy3711.2063.190.00501.27156.251.0641.328
408.9462.660.00631.11656.301.1521.536
437.47563.020.00641.23856.371.1521.598
Postpartum3712.9962.580.00241.35057.361.1301.025
407.9362.940.00301.01558.431.1211.184
436.0463.000.00361.11058.631.1191.310