Fig. 5
Levels of placental hormones in maternal serum from women ≥ 40 years of age with normal and adverse pregnancy outcome (n = 43/group). Maternal serum/plasma at 28 weeks (A, C, E, G) and 36 weeks (B, D, F, H) gestation against pregnancy outcome. A, B human placental lactogen (hPL), C, D Placental growth factor (PlGF), E, F Soluble fms like tyrosine kinase-1 (sFlt) and G, H PlFG:sFlt ratio. Data presented as median, interquartile range (box) and total range (whiskers) and analysed using Mann-Whitney U-test (*p < 0.05, **p < 0.01, ***p < 0.005)