Level of arterial umbilical blood pH, count (%) | |
<6.9 | 121 (30.0) | 147 (26.4) | 159 (27.8) | 186 (27.4) | 169 (22.2) | 170 (22.1) | 168 (22.9) | 148 (21.1) | 25.0 |
6.9–7.0 | 68 (16.9) | 93 (16.7) | 103 (17.9) | 121 (17.8) | 144 (18.9) | 121 (15.7) | 112 (15.2) | 122 (17.4) | 17.1 |
>7.0 | 106 (26.3) | 166 (29.8) | 172 (30.0) | 210 (30.9) | 252 (33.0) | 247 (32.0) | 209 (28.4) | 231 (32.9) | 30.4 |
Missing data | 108 (26.8) | 151 (27.1) | 139 (24.3) | 163 (23.9) | 198 (25.9) | 233 (30.2) | 246 (33.5) | 202 (28.7) | 27.6 |
Apgar score at 1min, count (%) |
[0–3] | 320 (79.4) | 440 (78.9) | 442 (77.1) | 512 (75.3) | 587 (76.9) | 589 (76.4) | 540 (73.5) | 528 (75.1) | 76.6 |
[4–7] | 49 (12.2) | 73 (13.1) | 78 (13.6) | 102 (15.0) | 100 (13.1) | 95 (12.3) | 99 (13.5) | 93 (13.2) | 13.3 |
[8–10] | 5 (1.2) | 8 (1.4) | 18 (3.1) | 18 (2.7) | 20 (2.6) | 18 (2.3) | 31 (4.2) | 22 (3.1) | 2.6 |
Missing data | 29 (7.2) | 36 (6.5) | 35 (6.1) | 48 (7.1) | 56 (7.3) | 69 (8.9) | 65 (8.8) | 60 (8.5) | 7.6 |
Apgar score at 5 min, count (%) |
[0–3] | 162 (40.2) | 241 (43.3) | 218 (38.1) | 272 (40.0) | 282 (36.9) | 287 (37.2) | 272 (37.0) | 261 (37.1) | 38.7 |
[4–7] | 193 (47.9) | 253 (45.4) | 275 (47.9) | 307 (45.2) | 368 (48.2) | 359 (46.6) | 352 (47.9) | 320 (45.5) | 46.8 |
[8–10] | 17 (4.2) | 26 (4.7) | 44 (7.7) | 55 (8.1) | 61 (7.9) | 56 (7.3) | 54 (7.4) | 60 (8.5) | 7.0 |
Missing data | 31 (7.7) | 37 (6.6) | 36 (6.3) | 46 (6.8) | 52 (6.8) | 69 (8.9) | 57 (7.8) | 62 (8.8) | 7.5 |
Intubation at delivery |
Count (%) | 283 (70.2) | 405 (72.7) | 400 (69.8) | 446 (65.6) | 498 (65.3) | 510 (66.2) | 471 (64.1) | 420 (59.7) | 66.7 |
Chest compressions at delivery |
Count (%) | 177 (43.92) | 257 (46.1) | 253 (44.2) | 253 (37.2) | 268 (35.1) | 292 (37.9) | 280 (38.1) | 224 (31.9) | 39.3 |
Resuscitation drugs at delivery |
Count (%) | 89 (22.1) | 108 (19.4) | 108 (18.9) | 107 (15.7) | 101 (13.2) | 112 (14.5) | 123 (16.7) | 95 (13.5) | 16.8 |
Seizures on day 1 |
Count (%) | 176 (43.7) | 205 (36.8) | 211 (36.8) | 226 (33.2) | 214 (28.1) | 222 (28.8) | 186 (25.3) | 180 (25.6) | 32.3 |
Use of inotropes on day 1 |
Count (%) | 136 (33.8) | 172 (30.9) | 157 (27.4) | 173 (25.4) | 183 (23.9) | 162 (21.0) | 180 (24.5) | 143 (20.3) | 25.9 |
Nitric oxide administered on day 1 |
Count (%) | 15 (3.7) | 26 (4.7) | 25 (4.4) | 31 (4.6) | 35 (4.6) | 38 (4.9) | 32 (4.4) | 38 (5.4) | 4.6 |
Invasive ventilation on day 1 |
Count (%) | 336 (83.4) | 468 (84.0) | 467 (81.5) | 538 (79.1) | 612 (80.2) | 601 (77.9) | 585 (79.6) | 545 (77.5) | 80.4 |