No EA n = 195 383 EA n = 52 153 Total N = 247 536
pH 7.25 ± 0.09 7.24 ± 0.08 7.25 ± 0.08
BE (mmol/l) -6.2 ± 3.3 -5.9 ± 3.2 -6.1 ± 3.2
Admission to NICU 6673 (3.4%) 2446 (4.7%) 9119 (3.7%)
Duration of delivery (h) 7 [4 to 9] 10 [7 to 13] 7 [5 to 10]
APGAR score 1 min 9 [9 to 9] 9 [9 to 9] 9 [9 to 9]
APGAR score 5 min 10 [10 to 10] 10 [10 to 10] 10 [10 to 10]
APGAR score 10 min 10 [10 to 10] 10 [10 to 10] 10 [10 to 10]
APGAR score 5 min <7 1128 (0.6%) 546 (1.0%) 1674 (0.7%)
Perineal laceration 5380 (2.8%) 1654 (3.2%) 7034 (2.8%)
Instrumental delivery 26 433 (13.5%) 15 564 (29.8%) 42 025 (16.9%)
Vacuum 26 083 (13.3%) 15 326 (29.4%) 41 411 (16.7%)
Forceps 350 (0.2%) 238 (0.5%) 588 (0.2%)
Perinatal mortality 206 (0.11%) 191 (0.36%) 397 (0.16%)
antepartum or IUFD 152 (73.8%) 171 (90.1%) 323 (81.6%)
intrapartum 7 (3.4%) 2 (1.0%) 9 (2.3%)
postpartum ≤7 days 47 (23.2%) 17 (8.9%) 64 (16.3%)