Fig. 2
From: Development and validation of a predictive model to identify the active phase of labor
Nomogram. The predicted probability of cervical dilatation ≥4 cm is calculated in three steps: 1) the score of each signs is obtained by the vertical projection (from “NO”, “YES”) to the score axis, 2) the total score is then calculated by summing up the single score values, 3) probability of need of of cervical dilatation ≥4 cm is calculated by the vertical projection of the total score value to the to the probability of cervical dilatation ≥4 cm