[Retracted] The Relationship between Antenatal Corticosteroid Administration-to-Delivery Intervals and Neonatal Respiratory Distress Syndrome and Respiratory Support
Table 1
Baseline characteristics of the study population (intervals from steroid therapy to delivery).
Characteristics
ACS ＜24 h
ACS 1-2 d
ACS 2–7 d
ACS ＞7 d
value
n = 264 (37.39%)
n = 83 (11.76%)
n = 292 (41.36%)
n = 67 (9.49%)
Infant
GA at delivery, wks, (IQR)
30.0 (28.6, 31.1)
30.5 (29.4, 31.3)
30.4 (29.3, 31.1)
30.4 (29.3, 31.1)
0.009
Birth weight, g, (IQR)
1415 (1230, 1640)
1550 (1300, 1730)
1480 (1235, 1700)
1520 (1300, 1700)
0.052
Gender (n, %), male
141/264 (53.41)
49/83 (59.04)
172/292 (58.90)
43/67 (64.18)
0.342
Twin (n, %)
69/264 (26.14)
11/83 (13.25)
56/292 (19.18)
16/67 (23.88)
0.048
Duration of ventilation (d, IQR)
10 (2, 23)
7 (0, 14)
7 (0, 20)
4.5 (1, 13)
0.01
Duration of hospitalisation (d, IQR)
31 (20, 42)
28 (22, 38)
30.5 (22, 40.5)
30 (22, 39)
0.85
ACS interval before delivery (h, IQR)
4 (1.5, 11)
34 (27, 42)
76 (62.5, 102.5)
264 (209, 360)
＜0.001
Maternal
PPROM (n, %)
27/264 (10.23)
42/83 (50.60)
123/292 (42.12)
20/67 (29.85)
＜0.001
Mode of delivery (n, %), vaginal
130/264 (49.24)
25/83 (30.12)
104/292 (35.62)
20/67 (29.85)
＜0.001
Placenta previa (n, %)
16/264 (6.06)
5/83 (6.02)
19/292 (6.51)
12/67 (17.91)
0.019
Placental abruption (n, %)
15/264 (5.68)
2/83 (2.41)
10/292 (3.42)
5/67 (7.46)
0.278
Gestational diabetes mellitus (n, %)
35/264 (13.26)
14/83 (16.87)
38/292 (13.01)
6/67 (8.96)
0.579
Fetal intrauterine distress (n, %)
23/264 (8.71)
14/83 (16.87)
32/292 (10.96)
8/67 (11.94)
0.214
Hypertension disorder in pregnancy (n, %)
19/264 (7.20)
13/83 (15.66)
47/292 (16.10)
9/67 (13.43)
0.007
＜0.05 and ＜0.01. ACS: antenatal corticosteroid; IQR: interquartile range; PPROM: preterm prelabour rupture of membranes. Data were analysed by the Kruskal–Wallis H test or χ2 test.
