Table 3.

Mean ± standard deviation and coefficient of variation (in brackets) of RF classifiers performance metrics in test dataset for predicting imminent birth (TTD ≤ 7days) in women with threatened preterm labor (TPL) using EHG data or a combination of EHG and obstetric data. The maximum value for each metric is shown in bold. F1: F1-score, Sens: Sensitivity, Spec: Specificity.

Opt. Criterion	Inputs	Classifier	Test_F1	Test_Sens	Test_Spec
F1-Score Sensitivity	EHGP10–P90 + Obs	RFF1_1	77.51 ± 7.58% (9.8%)	66.22 ± 11.70% (17.7%)	97.12 ± 4.13% (4.3%)
	EHGP50 + Obs	RFF1_2	80.35 ± 6.78% (8.4%)	74.00 ± 10.41% (14.1%)	92.25 ± 5.35% (5.8%)
	EHGP10–P90	RFF1_3	77.81 ± 8.71% (11.2%)	65.78 ± 11.61% (17.6%)	98.29 ± 2.51% (2.6%)
	EHGP50	RFF1_4	77.7 ± 6.6% (8.5%)	71.44 ± 10.99% (15.4%)	90.72 ± 4.58% (5.0%)