Supplementary table 1: Demographic, obstetric and clinicopathological characteristics of women with or without available delivery information
Not delivered at SZMC n=373 Delivered at SZMC n=650 p-value
Maternal age (years) 28.8±5.6 29.1±5.6 0.46
Previous miscarriage 99 (26.5%) 187 (28.8%) 0.45
Miscarriage > 3 10 (2.7%) 25 (3.8%) 0.32
Gravidity 3±2.4 3.3±2.5 0.06
Parity 2.6±2 2.8±2 0.12
Primiparity 131 (35.1%) 217 (33.4%) 0.57
Previous CD 43 (11.5%) 72 (11.1%) 0.83
Positive FCM 35 (9.4%) 84 (12.9%) 0.09
Gestational age at trauma (weeks) 30.7±4.8 31.9±5 <0.01
Mechanism of trauma* Mechanism of trauma* Mechanism of trauma* Mechanism of trauma*
Motor vehicle accident 165 (44.2%) 222 (34.2%) <0.01
Fall 121 (32.4%) 246 (37.8%) 0.08
Direct abdominal injury 122 (32.7%) 231 (35.5%) 0.36
Other 3 (0.8%) 11 (1.7%) 0.24
Injury severity score 0.2±0.8 0.1±0.7 0.45
Vaginal bleeding 3 (0.8%) 18 (2.8%) 0.03
Uterine contractions (more than 1 in 10 min) 69 (18.5%) 157 (24.2%) 0.03
Decreased fetal movements 14 (3.8%) 32 (4.9%) 0.38
Rupture of membranes 1 (0.3%) 3 (0.5%) 0.63
Sonographic placental abruption signs 4 (1.1%) 6 (0.9%) 0.82
Fetal death 0 (0%) 2 (0.3%) 0.28
ER admission only 86 (23.1%) 148 (22.8%) 0.91
Hospitalization in high-risk pregnancy department 277 (74.3%) 495 (76.3%) 0.47
Hospitalization in another department 4 (1.1%) 9 (1.4%) 0.67
Non-obstetric surgery 1 (0.3%) 4 (0.6%) 0.44
Length of stay 1±1.1 1.2±1.9 0.03
Seen by other specialty: general surgeon / orthopedic / other 174 (46.6%) 250 (38.6%) 0.01
Delivery during hospitalization 3 (0.8%) 11 (1.7%) 0.24
FCM - Flow cytometry. ER – Emergency Room. Data are mean± standard deviation; number (%); FCM - Flow cytometry. ER – Emergency Room. Data are mean± standard deviation; number (%); FCM - Flow cytometry. ER – Emergency Room. Data are mean± standard deviation; number (%); FCM - Flow cytometry. ER – Emergency Room. Data are mean± standard deviation; number (%);