Table 4.
Mean ± standard deviation and coefficient of variation (in brackets) of ELM classifiers’ performance metrics in test dataset for predicting imminent birth (TTD ≤ 7 days) in women with TPL using EHG data or a combination of EHG and obstetric data. The maximum value for each metric and optimization criterion is shown in bold. F1: F1-score, Sens: sensitivity, Spec: specificity.
| Opt. Criterion | Inputs | Classifier | Test_F1 | Test_Sens | Test_Spec |
|---|---|---|---|---|---|
| F1-score | EHGP10–P90 + Obs | ELMF1_1 | 80.00 ± 4.98% (6.0%) | 87.56 ± 8.53% (9.7%) | 74.77 ± 7.32% (9.8%) |
| EHGP50 + Obs | ELMF1_2 | 82.14 ± 5.88% (7.2%) | 89.89 ± 7.14% (7.9%) | 76.40 ± 8.12% (10.6%) | |
| EHGP10–P90 | ELMF1_3 | 78.41 ± 4.55% (5.8%) | 85.89 ± 7.91% (9.2%) | 73.24 ± 6.93% (9.5%) | |
| EHGP50 | ELMF1_4 | 79.00 ± 5.06% (6.4%) | 86.22 ± 6.65% (7.7%) | 73.87 ± 8.64% (11.7%) | |
| Sensitivity | EHGP10–P90 + Obs | ELMSEN_1 | 74.83 ± 3.88% (5.2%) | 95.44 ± 4.59% (4.8%) | 51.35 ± 9.28% (18.1%) |
| EHGP50 + Obs | ELMSEN_2 | 75.42 ± 3.96% (5.3%) | 96.00 ± 5.13% (5.3%) | 52.25 ± 9.58% (18.3%) | |
| EHGP10–P90 | ELMSEN_3 | 73.13 ± 3.10% (4.2%) | 94.78 ± 4.61% (4.9%) | 47.57 ± 8.83% (18.6%) | |
| EHGP50 | ELMSEN_4 | 73.83 ± 3.24% (4.4%) | 94.89 ± 5.01% (5.3%) | 49.37 ± 9.63% (19.5%) |