Table 4 Perinatal status and pregnancy co-morbidities and complications in gestational age strata of all births
Gestational age (weeks) | < 32 | 32–36 | 37–41 | ≥42 | Total |
|---|---|---|---|---|---|
All births | 316 (0.5) | 2088 (3.5) | 56,159 (94.9) | 627 (1.1) | 59,190 |
Males* | 191 (60.4) | 1186 (56.8) | 29,817 (53.1) | 302 (48.2) | 31,496 (53.2) |
Gestational age (weeks) | 29.2 ± 1.6 | 34.9 ± 1.3 | 39.2 ± 1.0 | 42.1 ± 0.3 | 39.1 ± 1.5 |
Birthweight (g) | 1464 ± 443 | 2583 ± 546 | 3489 ± 451 | 3677 ± 483 | 3448 ± 507 |
LBW* | 310 (98.1) | 840 (40.2) | 544 (1.0) | 1 (0.2) | 1695 (2.9) |
Multi-births* | 79 (25.0) | 482 (23.1) | 689 (1.2) | 0 (0.0) | 1250 (2.1) |
Congenital anomaliesa* | 16 (5.1) | 38 (1.8) | 267 (0.5) | 3 (0.5) | 325 (0.5) |
Cesarean delivery* | 115 (36.4) | 1296 (62.1) | 30,463 (54.2) | 352 (56.1) | 32,226 (54.4) |
Pregnancy complications* | 80 (25.3) | 541 (25.9) | 7625 (13.6) | 82 (13.1) | 8328 (14.1) |
HDP* | 39 (1.3) | 307 (10.5) | 2535 (86.8) | 39 (1.3) | 2920 (4.9) |
PROM* | 81 (25.6) | 598 (28.6) | 4554 (8.1) | 34 (5.4) | 5267 (8.9) |
GDM* | 9 (2.8) | 96 (4.6) | 796 (1.4) | 3 (0.5) | 904 (1.5) |
Anemia | 51 (16.1) | 347 (16.6) | 4033 (7.2) | 53 (8.5) | 4484 (7.6) |
Antenatal steroidsf | 164 (58.2) | 680(33.6) | 0 | 0 | 844 (36.6) |
Maternal age (years) | 27.4 ± 5.4 | 27.6 ± 5.4 | 26.9 ± 4.8 | 26.1 ± 5.1 | 26.9 ± 4.8 |
Delayed childbearing* | 40 (12.7) | 264 (12.6) | 4565 (8.1) | 47 (7.5) | 4916 (8.3) |
> 9 years’ education* | 160 (50.6) | 1082 (51.8) | 21,363 (38.0) | 134 (21.4) | 22,739 (38.4) |
Amniotic fluid volume* | |||||
Normal | 261 (82.6) | 1842 (88.2) | 47,717 (85.0) | 541 (86.3) | 50,361 (85.1) |
Polyhydramnios | 8 (2.5) | 40 (1.9) | 4136 (7.4) | 4 (0.6) | 4188 (7.1) |
Oligohydramnios | 48 (15.2) | 206 (9.9) | 4306 (7.7) | 82 (13.1) | 4642 (7.8) |
Amniotic contamination* | |||||
Normal | 275 (87.0) | 1949 (93.3) | 48,362 (86.1) | 485 (77.4) | 51,071 (86.3) |
Grade I | 13 (4.1) | 44 (2.1) | 2811 (5.0) | 56 (8.9) | 2924 (4.9) |
Grade II | 9 (2.8) | 21 (1.0) | 2151 (3.8) | 41 (6.5) | 2222 (3.8) |
Grade III | 19 (6.0) | 74 (3.5) | 2835 (5.0) | 45 (7.2) | 2973 (5.0) |
Apgar score | |||||
1-min ≤ 7* | 227 (71.8) | 443 (21.2) | 892 (1.6) | 9 (1.4) | 1571 (2.7) |
1-min ≤ 3* | 97 (30.7) | 91 (4.4) | 158 (0.3) | 1 (0.2) | 347 (0.6) |
5-min ≤ 7* | 155 (49.1) | 133 (6.4) | 262 (0.5) | 4 (0.6) | 554 (0.9) |
5-min ≤3* | 77 (24.4) | 65 (3.1) | 149 (0.3) | 2 (0.3) | 293 (0.5) |
Hospitalized on day 1* | 219 (69.3) | 1191 (57.0) | 1841 (3.3) | 13 (2.1) | 3264 (5.5) |
IVH/PVH* | 125 (52.1) | 534 (40.9) | 248 (13.5) | 4 (30.8) | 911 (26.8) |
RDS* | 132 (55.0) | 104 (8.0) | 36 (2.0) | 0 | 272 (8.0) |
Ventilation* | 167 (69.6) | 282 (21.6) | 204 (11.1) | 0 | 653 (19.2) |
Fetal deaths/stillbirths* | 55 (17.4) | 58 (2.8) | 54 (0.1) | 0 (0) | 167 (0.3) |
Deaths at deliveryb* | 75 (23.7) | 62 (3.0) | 61 (0.1) | 0 | 198 (0.3) |
Early neonatal deathsc* | 44 (13.9) | 32 (1.5) | 62 (0.1) | 1 (0.2) | 139 (0.2) |
Late neonatal deathsd* | 6 (1.9) | 5 (0.2) | 30 (0.1) | 0 | 41 (0.1) |
All deathse* | 110 (34.8) | 95 (4.5) | 151 (0.3) | 2 (0.3) | 358 (0.6) |