Variable | Deceased | Surviving | P |
---|---|---|---|
N = 49 (%) | N = 465 (%) | ||
Neonate-related | |||
Gender (feminine/masculine) | 21/28 | 212/253 | 0.41 |
Gestational age (wk)* | 31.3 ± 5.2 | 34.0 ± 4.1 | <0.0001 |
Birth weight (g)* | 1486 ± 867 | 2130 ± 852 | <0.0001 |
Height (cm)* | 38.2 ± 6.2 | 44.0 ± 5.6 | <0.0001 |
Premature (≤37 wks) | 38 (77.5) | 153 (32.2) | 0.08 |
Postmature (≥42 wks) | 1 (2.0) | 4 (0.9) | 0.39 |
Product of multiple pregnancy | 7 (14.3) | 34 (7.3) | 0.08 |
Abnormal umbilical cord | 14 (28.6) | 117 (25.2) | 0.35 |
With perinatal asphyxia | 9 (18.4) | 8 (1.7) | <0.0001 |
With intrauterine hypoxia | 3 (6.1) | 7 (1.5) | 0.06 |
Apgar score ≤5 | 42 (85.7) | 232 (49.9) | <0.0001 |
With fetal distress | 13 (26.5) | 73 (15.7) | 0.04 |
Maternal-related | |||
Age (yrs)* | 27.0 ± 5.8 | 26.3 ± 5.5 | 0.42 |
Low educative level | 26 (53.1) | 258 (55.5) | 0.43 |
Gestations* | 2.3 ± 1.3 | 1.9 ± 1.2 | 0.06 |
Abortions* | 0.4 ± 0.7 | 0.2 ± 0.5 | 0.01 |
Non-adequate pregnancy control | 30 (61.2) | 228 (49.0) | 0.07 |
With threat of abortion during this pregnancy | 19 (38.8) | 120 (25.8) | 0.04 |
Abnormal placenta | 15 (30.6) | 71 (15.3) | 0.008 |
Abnormal amniotic fluid | 20 (40.8) | 139 (29.9) | 0.08 |
Dystocic delivery | 16 (32.7) | 135 (29.0) | 0.35 |
Cesarean section | 32 (65.3) | 327 (70.3) | 0.28 |
Premature membrane rupture >12 h | 10 (20.4) | 158 (34.0) | 0.03 |
Premature membrane rupture >48 h | 7 (14.3) | 130 (28.0) | 0.02 |
Premature membrane rupture >24 h | 5 (10.2) | 80 (17.2) | 0.14 |
Amnionitis | 0 | 4 (0.9) | 0.66 |
Preeclampsia ≤35 gestational wks | 3 (6.1) | 25 (5.4) | 0.51 |
Preeclampsia >35 gestational wks | 2 (4.1) | 24 (5.2) | 0.54 |
Metabolic disease ≤35 gestational wks | 4 (8.2) | 23 (4.9) | 0.25 |
Metabolic disease >35 gestational wks | 1 (2.0) | 25 (5.4) | 0.26 |
Infectious disease ≤35 gestational wks | 17 (34.7) | 147 (31.6) | 0.38 |
Infectious disease >35 gestational wks | 7 (14.3) | 72 (15.5) | 0.51 |
Clinical course- and medical care-related | |||
Reanimation required | 45 (91.8) | 294 (63.2) | <0.0001 |
Mechanical ventilation required | 37 (75.5) | 123 (26.5) | <0.0001 |
O2 inspiration fraction >60% required | 23 (46.9) | 72 (15.5) | <0.0001 |
Continuous positive airway pressure required | 6 (12.2) | 18 (3.9) | 0.02 |
Surfactant administration | 16 (32.7) | 33 (7.1) | <0.0001 |
Respiratory complication | 1 (2.0) | 34 (7.3) | 0.13 |
Intraventricular bleeding | 9 (18.4) | 11 (2.4) | <0.0001 |
Surgical procedure required | 4 (8.2) | 19 (2.2) | 0.03 |
Invasive medical procedure required | 48 (97.8) | 245 (52.5) | <0.0001 |