TABLE 4

Total Births and ORs for Stillbirth, NICU Admission, and Survival in NEPS2 Compared With NEPS1

NEPS1NEPS2OR (95% CI)aPb
1999–20002013–2014CrudeAdjustedc
Total birth population119 611120 007
All live-births and stillbirths
 22–24 wk, n (rate/1000 births)173 (1.45)223 (1.86).014
 25–26 wk, n (rate/1000 births)195 (1.63)197 (1.64).96
 22–26 wk, n (rate/1000 births)368 (3.08)420 (3.50).074
Intrauterine death before admission to obstetric unitd
 22–24 wk, n (% of all births)24 (14.8)50 (22.4)1.66 (0.97–2.84)1.59 (0.93–2.73).090
 25–26 wk, n (% of all births)15 (7.7)35 (17.8)2.58 (1.36–4.89)2.57 (1.36–4.89).004
 22–26 wk, n (% of all births)39 (11.0)85 (20.2)2.06 (1.37–3.10)1.96 (1.30–2.97).001
Intrauterine death before admission to obstetric unitd
 22–24 wk, n (% of all births)38 (23.5)52 (23.3)0.99 (0.62–1.60)0.80 (0.47–1.34).40
 25–26 wk, n (% of all births)12 (6.2)8 (4.1)0.64 (0.26–1.61)0.64 (0.25–1.59).33
 22–26 wk, n (% of all births)50 (14.0)60 (14.3)1.02 (0.68–1.53)0.77 (0.50–1.21).26
Live birthsd
 22–24 wk, n (% of all births)100 (61.7)121 (54.3)0.74 (0.49–1.11)0.85 (0.54–1.32).46
 25–26 wk, n (% of all births)167 (86.1)154 (78.2)0.58 (0.34–0.98)0.58 (0.34–0.99).044
 22–26 wk, n (% of all births)267 (75.0)275 (65.5)0.63 (0.46–0.86)0.71 (0.51–0.99).049
NICU admissionsd
 22–24 wk, n (% of live-births)83 (83.0)99 (81.8)0.92 (0.46–1.85)1.31 (0.56–3.09).53
 25–26 wk, n (% of live-births)165 (98.8)152 (98.7)0.92 (0.13–6.62)0.96 (0.13–6.91).96
 22–26 wk, n (% of live-births)248 (92.9)251 (91.3)0.80 (0.43–1.50)1.21 (0.57–2.58).62
Survival to discharged
 22–24 wk, n (% of live-births)44 (44.0)50 (41.3)0.90 (0.52–1.53)1.04 (0.58–1.84).90
 25–26 wk, n (% of live-births)136 (81.4)135 (87.7)1.62 (0.87–3.01)1.65 (0.89–3.07).11
 22–26 wk, n (% of live-births)180 (67.4)185 (67.3)0.99 (0.69–1.42)1.27 (0.84–1.93).26
  • a NEPS1 set as reference.

  • b P values adjusted for GA, except for birth rate/1000 births.

  • c Adjusted for GA.

  • d Twelve infants (11 with GA 22–24 and 1 with GA 26) were excluded from the denominator in NEPS1 due to unknown time of death. In NEPS2, all infants surviving to discharge were also alive at 1 y.