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. 2016 Nov 3;16:174. doi: 10.1186/s12887-016-0716-5

Table 2.

Survive and morbidity rate according to GA for infants <32 weeks from 2013 to 2014

Gestational age 24 weeks 25 weeks 26 weeks 27 weeks 28 weeks 29 weeks 30 week 31 week Total
Numbers (%) 11 25 33 79 199 321 444 648 1760
Died within 7 days (%) 6 (54.5) 13 (52.0) 3 (9.1) 8 (10.1) 7 (3.5) 9 (2.8) 6 (1.4) 2 (0.3) 54 (3.1)
Died before discharge (%) 5 (45.5) 5 (20.0) 2 (6.1) 5 (6.3) 18 (9.1) 21 (6.5) 21 (4.7) 24 (3.7) 101 (5.7)
Survived to discharge (%)a 0 (0) 7 (28.0) 28 (84.8) 66 (83.5) 174 (87.4) 291 (90.7) 417 (93.9) 622 (96.0) 1605 (91.2)
Survived without morbidity (%)b 0 (0) 2 (8.0) 20 (60.6) 42 (53.2) 124 (62.3) 218 (67.9) 351 (79.1) 556 (85.8) 1313 (74.6)
Died or survived with at least one morbidity (%) 11 (100) 23 (92.0) 13 (39.4) 37 (46.8) 75 (37.7) 103 (32.1) 93 (20.9) 92 (14.2) 447 (25.4)
RDS (%) 10 (90.9) 22 (88.0) 29 (87.9) 69 (87.3) 167 (83.9) 223 (69.5) 234 (52.7) 276 (42.6) 1030 (58.5)
BPD (%)c - 4 (57.1) 11 (39.3) 20 (30.3) 45 (25.9) 63 (21.6) 33 (7.9) 24 (3.9) 200 (12.5)
NEC (%)d - 0 (0) 2 (6.7) 7 (9.9) 13 (6.8) 11 (3.5) 10 (2.3) 23 (3.6) 66 (3.9)
IVH (%)d - 5 (41.7) 7 (23.3) 23 (32.4) 31 (16.1) 50 (16.0) 61 (13.9) 85 (13.2) 262 (15.4)
PDA (%)d - 4 (33.3) 11 (36.7) 30 (42.3) 59 (30.7) 102 (32.7) 117 (26.7) 162 (25.1) 485 (28.4)
ROP (%)c - 2 (28.6) 5 (17.9) 10 (15.2) 18 (10.3) 21 (7.2) 16 (3.8) 14 (2.3) 86 (5.4)
Sepsis (%)a - 5 (20.0) 7 (21.2) 11 (13.9) 33 (16.6) 35 (10.9) 42 (9.5) 37 (5.7) 170 (9.7)

RDS respiratory distress syndrome, BPD bronchopulmonary dysplasia, including mild, moderate and severe BPD, NEC necrotizing enterocolitis, including stage I, II and III, IVH intraventricular hemorrhage, including grade I, II, III and IV, ROP retinopathy of prematurity; including stage I, II, III, IV and V. PDA Patent ductus arteriosus

a Proportion among all infants including survivors

bMorbidity including moderate to severe BPD, severe IVH, high grade NEC, sepsis and ROP stage ≥3

cProportion among infants who survived

dProportion among infants who survived > 7 days