The sensitivity/specificity of the test kit for the diagnosis of preeclampsia at the cutoff values of sFlt-1, PlGF, and the sFlt-1/PlGF ratio were 60.4/87.6% (cutoff: >5929.63), 90.3/62.3% (cutoff: <176.02), and 81.1/77.9% (cutoff: >16.84), respectively. Here, PGF is linked to preeclampsia.