Table 1 Baseline characteristics of the study cohort.
From: Automated interpretation of cardiotocography using deep learning in a nationwide multicenter study
Characteristics | Development dataset | External Test dataset | ||||
|---|---|---|---|---|---|---|
Abnormal | Normal | ASD | Abnormal | Normal | ASD | |
Mean | Mean | Mean | Mean | |||
Total | 5487 | 14,367 | 1305 | 3281 | ||
Mother | ||||||
Age (year)† | 32.9 | 33.1 | 0.034 | 33.2 | 33.6 | 0.090 |
Height (cm)† | 161.2 | 161.3 | 0.021 | 160.9 | 161.3 | 0.062 |
Weight (kg)† | 69.7 | 70.3 | 0.049 | 65.1 | 67.0 | 0.157 |
Gravida† | 1.9 | 2.0 | 0.118 | 2.2 | 2.2 | 0.068 |
Para† | 0.5 | 0.5 | 0.097 | 0.9 | 1.0 | 0.054 |
Gestational hypertension | 4.7% | 4.2% | 0.023 | 7.6% | 5.8% | 0.071 |
Gestational diabetes | 8.3% | 8.9% | 0.023 | 11.6% | 10.1% | 0.051 |
Pre-eclampsia | 11.4% | 8.0% | 0.114 | 11.6% | 8.4% | 0.108 |
Cesarean section | 54.5% | 64.3% | 0.200 | 53.5% | 67.4% | 0.288 |
Gestational weeks† | 36.6 | 36.6 | 0.025 | 36.4 | 36.4 | 0.027 |
Fetal | ||||||
Fetal growth restriction | 14.1% | 9.2% | 0.152 | 10.0% | 7.5% | 0.089 |
Baby sex (male) | 52.3% | 52.7% | 0.008 | 48.6% | 52.4% | 0.077 |
Weight (g)† | 2712.3 | 2795.2 | 0.117 | 2653.9 | 2705.8 | 0.075 |
Height (cm)† | 47.0 | 47.3 | 0.074 | 47.9 | 48.2 | 0.072 |
Head circumference (cm)† | 32.8 | 33.1 | 0.082 | 32.6 | 33.1 | 0.184 |
Apgar score.1 min† | 7.3 | 7.7 | 0.242 | 7.6 | 8.1 | 0.263 |
Apgar score.5 min† | 8.7 | 8.9 | 0.209 | 8.8 | 9.1 | 0.215 |
NICU admission | 46.6% | 43.2% | 0.068 | 42.6% | 40.5% | 0.043 |
Intubation | 10.5% | 5.9% | 0.169 | 3.6% | 1.5% | 0.132 |
Jaundice | 20.6% | 20.3% | 0.007 | 31.2% | 32.9% | 0.038 |
Prematurity | 39.7% | 39.7% | 0.002 | 42.5% | 42.6% | 0.001 |
Low birth weight | 34.6% | 31.4% | 0.067 | 39.2% | 35.7% | 0.072 |
