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. 2024 Jul 12;2(11):766–775. doi: 10.1021/envhealth.4c00104

Table 3. Statistics of Obstetric-Relevant Diagnoses Commonly Used in Clinical Practicea.

Obstetric-Relevant Indicators Mean (SD) or Count (%)
Gravidity 2.1 (1.2)
Parity 1.5 (0.6)
Abortion(s) or Miscarriage(s)  
0 69,065 (58.2%)
1 to 2 44,282 (37.3%)
3 to 5 5,173 (4.4%)
above 5 169 (0.1%)
Live Birth(s)  
0 66,803 (56.3%)
1 48,994 (41.3%)
2 2,707 (2.3%)
3 or above 186 (0.2%)
Spontaneous Singleton Delivery 62,818 (52.9%)
Caesarean Singleton Delivery 51,506 (43.4%)
Stillbirth 1,605 (1.4%)
Gestational Age (in Days) 271 (18)
Preterm Birth 12,386 (10.4%)
Singleton Preterm Birth 11,385 (9.6%)
Twins or Multiple Pregnancy 4,926 (4.2%)
Spontaneous Preterm Birth 6,738 (5.7%)
Singleton Spontaneous Preterm Birth 5,332 (4.5%)
Singleton Medical Indicated Preterm Birth 6,053 (5.1%)
Menarche Age (Years) 13.9 (1.4)
Gestational Weight Gain (kg) 13.5 (6.0)
Gestational Diabetes Mellitus 22,393 (18.9%)
Gestational Hypertension 2,465 (2.1%)
Pre-eclampsia 6,553 (5.5%)
Severe Pre-eclampsia 4,342 (3.7%)
Single-Symptom Intrahepatic Cholestasis of Pregnancy (ICP) 2,872 (2.4%)
Multisymptomatic ICP 724 (0.6%)
Birth Weight, Singleton (g) 3,195 (580)
Low Birth Weight Infants, Singleton 8,365 (7.0%)
Apgar Score, Singleton, 1 min 9.7 (1.3)
Apgar Score, Singleton, 5 min 9.9 (0.5)
a

“Obstetric-relevant diagnoses” refer to all maternal and neonatal conditions related to the current pregnancy and childbirth, primarily including obstetric history (both times of pregnancy and delivery), severe maternal diseases during pregnancy, adverse pregnancy outcomes, and neonatal health status.