| Characteristics | Result |
| Number of women with PPROM | 160 | Maternal age (mean ± S.D.) | 30.5 ± 5.3 | Weeks of gestation at admission (mean ± S.D.) | 32.9 ± 0.51 | Nulliparous, n (%) | 19 (11.87%) | Pregnancy | | Singleton, n (%) | 142 (88.8%) | Twin, n (%) | 17 (10.63%) | Latency period (d) | 4.0 ± 3.9 |
| Maternal outcome | | Major maternal complications | | Cesarean delivery, n (%) | 74,(46%) | Increased infection index before labour, n (%) | 42,(26%) | Precipitate labor, n (%) | 29,(18%) | Fever, n (%) | 16,(10%) | Fetal distress, n (%) | 12,(8%) | Pathological placental membrane inflammation, n (%) | 11,(7%) | Placental adhesions, n (%) | 7,(4%) | Uterine atony, n (%) | 6,(4%) | Postpartum hemorrhage, n (%) | 6,(4%) | Fetal membrane residue, n (%) | 6,(4%) | Curettage, n (%) | 4,(3%) | Placental abruption, n (%) | 4,(3%) | Chorioamnionitis, n (%) | 2,(1%) | Prolapse of umbilical cord, n (%) | 1,(1%) |
| Neonatal outcomes | | Neonatal number | 177 | Neonatal death/be abandoned, n (%) | 1,(1%) | Neonatal survival, n (%) | 176,(99%) | Birth weight/g (mean ± S.D.) | 2210.3 ± 367.6 | Apgar score at 1 minute | 9.5 ± 1.1 | Apgar score at 5 minute | 9.8 ± 0.6 | Hospitalization length (d) | 11.4 ± 7.1 | Hospitalization length of survival (d) | 11.4 ± 7.1 | Endotracheal intubation, n (%) | 7,(4%) | NICU admission, n (%) | 165,(93%) |
| Major neonatal condition | | Neonatal hyperbilirubinemia, n (%) | 145,(82%) | Neonatal pneumonia, n (%) | 136,(77%) | Patent foramen ovale, n (%) | 83,(47%) | Neonatal hypoglycemia, n (%) | 49,(28%) | Myocardial damage, n (%) | 42,(24%) | Patent ductus arteriosus, n (%) | 32,(18%) | Electrolyte disorder, n (%) | 31,(18%) | Premature brain, n (%) | 24,(14%) | Neonatal anemia, n (%) | 22,(12%) | Pulmonary hypertension, n (%) | 19,(11%) | Sepsis, n (%) | 25,(14%) | Neonatal asphyxia, n (%) | 13,(7%) | Neonatal intracranial hemorrhage, n (%) | 13,(7%) | Neonatal hypoproteinemia, n (%) | 11,(6%) | Atrial septal defect, n (%) | 11,(6%) | ABO hemolytic disease of newborn, n (%) | 10,(6%) | Neonatal respiratory distress syndrome, n (%) | 10,(6%) | Neonatal hypoxic ischemic encephalopathy, n (%) | 7,(4%) | Abnormal coagulation function, n (%) | 7,(4%) | Ventricular septal defect, n (%) | 6,(3%) | Mycotic infection, n (%) | 5,(3%) | Immature retina (double), n (%) | 5,(3%) | Neonatal thrombocytopenia, n (%) | 4,(2%) | Neonatal gastrointestinal bleeding, n (%) | 4,(2%) | Neonatal respiratory failure, n (%) | 4,(2%) | Neonatal meningitis, n (%) | 3,(2%) | Septic shock, n (%) | 1,(1%) |
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