Table 1.
Demographic data and outcome parameters of included preterm neonates. Values are presented as n (%), or median (minimum; maximum) as appropriate
|
Entire cohort n = 3128 |
AGA preterm neonates n = 2792 |
SGA preterm neonates n = 328 |
|
|---|---|---|---|
| Gestational age (weeks) | 32.1 (23.1; 34.0) | 32.1 (23.1; 33.9) | 32.6 (23.4; 34.0) |
| Birth weight (g) | 1700 (297; 3210) | 1750 (376; 3210) | 1240 (297; 1780) |
| Female sex n (%) | 1407 (44.8%) | 1244 (44.6%) | 153 (46.6%) |
| Spontaneous vaginal delivery n (%) | 710 (22.7%) | 686 (24.6%) | 21 (6.4%) |
| Apgar 5 | 8 (2; 9) | 8 (2; 9) | 8 (1; 8) |
| Umbilical cord pH | 7.31 (7.01; 7.60) | 7.31 (7.01; 7.60) | 7.29 (7.05; 7.44) |
| Prenatal steroids n (%) | 2099 (67.1%) | 1886 (67.6%) | 208 (63.4%) |
| Causes for preterm birth | |||
| Preterm rupture of membranes n (%) | 448 (14.3%) | 431 (15.4%) | 16 (4.9%) |
| Amniotic fluid Infection n (%) | 243 (7.8%) | 234 (8.4%) | 9 (2.7%) |
| Gestosis n (%) | 377 (12.1%) | 304 (10.9%) | 73 (22.3%) |
| Cervical insufficiency n (%) | 152 (4.9%) | 139 (5.0%) | 12 (3.7%) |
| Pathological CTG n (%) | 428 (13.7%) | 318 (11.4%) | 110 (33.5%) |
| Preterm labor n (%) | 983 (31.4%) | 933 (33.4%) | 46 (14.0%) |
| Others n (%) | 497 (15.9%) | 433 (15.5%) | 62 (18.9%) |
AGA appropriate-for-gestational age, CTG cardiotocography, SGA small-for-gestational age