Table 1.
Perinatal characteristics of the 19 559 conscripts according to five-minute Apgar score
| Five-minute Apgar score | ||||
| <7 | 7–9 | 10 | Total | |
| Number | 136 (0.7%) | 1143 (5.8%) | 18 280 (93.5%) | 19 559 (100.0%) |
| Mother's marital status | ||||
| Married | 78 (57.4%) | 727 (63.6%) | 12 332 (67.5%) | 13 137 (67.2%) |
| Unmarried | 58 (42.6%) | 416 (36.4%) | 5948 (32.5%) | 6422 (32.8%) |
| Parity | ||||
| 0 | 82 (60.3%) | 570 (49.9%) | 7789 (42.6%) | 8441 (43.1%) |
| 1 | 29 (21.3%) | 375 (32.8%) | 6999 (38.3%) | 7403 (37.9%) |
| ≥ 2 | 25 (18.4%) | 198 (17.3%) | 3492 (19.1%) | 3715 (19.0%) |
| Mother's age, years | ||||
| ≤ 20 years | 14 (10.3%) | 119 (10.4%) | 1724 (9.4%) | 1857 (9.5%) |
| 21–35 years | 113 (83.1%) | 956 (85.1%) | 15 529 (85.9%) | 16 598 (86.5%) |
| >35 | 9 (6.6%) | 68 (5.9%) | 1027 (5.6%) | 1104 (5.6%) |
| Gestational age, weeks | ||||
| <37 | 28 (20.6%) | 132 (11.6%) | 543 (3.0%) | 703 (3.6%) |
| 37–42 | 74 (54.4%) | 739 (64.6%) | 13 260 (72.5%) | 14 073 (71.9%) |
| ≥ 42 | 14 (10.3%) | 107 (9.4%) | 1338 (7.3%) | 1459 (7.5%) |
| Missing | 20 (14.7%) | 165 (14.4%) | 3139 (17.2%) | 3324 (17.0%) |
| Birth weight, gram | ||||
| <2500 | 41 (30.2%) | 128 (11.2%) | 553 (3.0%) | 722 (3.7%) |
| ≥ 2500 | 95 (69.8%) | 1002 (87.6%) | 17 598 (96.3%) | 18 695 (95.6%) |
| Missing | 0 (0.0%) | 13 (1.1%) | 129 (0.7%) | 142 (0.7%) |
| SGA | 18 (13.2%) | 117 (10.2%) | 1473 (8.1%) | 1608 (8.2%) |
| Mode of delivery | ||||
| Vaginal unassisted | 69 (50.7%) | 681 (59.6%) | 14 895 (81.5%) | 15 645 (80.0%) |
| Cesarean delivery | 34 (25.0%) | 234 (20.5%) | 1728 (9.4%) | 1996 (10.2%) |
| Instrument delivery | 33 (24.2%) | 228 (19.9%) | 1657 (9.1%) | 1918 (9.8%) |
| Fetal presentation | ||||
| Cephalic | 111 (81.6%) | 1026 (89.8%) | 17 183 (94%) | 18 320 (93.7%) |
| Breech | 23 (16.9%) | 105 (9.2%) | 903 (4.9%) | 1031 (5.3%) |
| Missing | 2 (1.5%) | 12 (1.0%) | 194 (1.1%) | 208 (1.1%) |