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Table 2 Details of the four multivariable logistic regression models fitted

From: The prognostic utility of soluble fms-like tyrosine kinase-1 (sFlt-1) and placental growth factor (PIGF) biomarkers for predicting preeclampsia: a secondary analysis of data from the INSPIRE trial

Models

Model form

Model 1

\(PE\sim\log\left(sFlt-1\right)+randomised\ arm\)  

Model 2

\(PE \sim \mathrm{log}(PIGF)+randomised\ arm\)  

Model 3

\(PE \sim log\left(\frac{sFlt-1}{PIGF}\right)+randomised\ arm\)  

Model 4

\(PE \sim \left(\frac{\mathrm{sFlt}-1}{\mathrm{PIGF}}\right)>38 +randomised\ arm\)  

  1. PE Pre-eclampsia (1 = Yes, 0 = No), sFlt-1 Soluble fms-like tyrosine kinase – 1, PIGF Placental growth factor, log indicates natural logarithmic transformation