Table 4 Maternal and neonatal clinical factors associated with NFH.
From: Proposing a machine learning-based model for predicting nonreassuring fetal heart
Outcome | RFH (n = 6506) | NFH (n = 661) | P-value |
|---|---|---|---|
Preeclampsia | 0.046 | ||
No | 6132 (94.3) | 610 (92.3) | |
Yes | 373 (5.7) | 51 (7.7) | |
Diabetes | 0.295 | ||
No | 5552 (85.3) | 561 (84.9) | |
Yes | 953 (14.7) | 100 (15.1) | |
Hypothyroidism | 0.999 | ||
No | 5839 (89.8) | 594 (89.9) | |
Yes | 666 (10.2) | 67 (10.1) | |
Cardiovascular disease | 0.225 | ||
No | 6440 (99.0) | 651 (98.5) | |
Yes | 65 (1.0) | 10 (1.5) | |
COVID-19 | 0.110 | ||
No | 6402 (98.4) | 645 (97.6) | |
Yes | 103 (1.6) | 16 (2.4) | |
Chronic hypertension | 0.522 | ||
No | 6442 (99.0) | 657 (99.4) | |
Yes | 63 (1.0) | 4 (0.6) | |
Maternal anemia | 0.903 | ||
No | 6318 (97.1) | 643 (97.3) | |
Yes | 187 (2.9) | 18 (2.7) | |
Chorioamnionitis | 0.873* | ||
No | 6483 (99.7) | 659 (99.7) | |
Yes | 22 (0.3) | 2 (0.3) | |
Placenta abruption | < 0.01 | ||
No | 6305 (96.9) | 623 (94.3) | |
Yes | 200 (3.1) | 38 (5.7) | |
Placenta acreta | 0.413* | ||
No | 6490 (99.8) | 661 (100) | |
Yes | 15 (0.2) | 0 | |
Drug addiction | 0.826 | ||
No | 6449 (99.1) | 655 (99.1) | |
Yes | 56 (0.9) | 6 (0.9) | |
Intrauterine growth restriction | < 0.001 | ||
No | 6303 (96.9) | 622 (94.1) | |
Yes | 202 (3.1) | 39 (5.9) | |
Meconium amniotic fluid | 0.056 | ||
No | 5620 (86.4) | 566 (85.6) | |
Yes | 885 (13.6) | 95 (14.4) | |
Newborn sex | < 0.001 | ||
Male | 3294 (50.6) | 393 (59.5) | |
Female | 3211 (49.4) | 268 (40.5) |
