|
N = 175 |
N= 112 |
|
GA – median (IQR) |
25.9 (24.9-26.9) |
24.7 (24.1-25.6) |
<0.0001** |
BW – median (IQR) |
762 (651-882) |
674 (599-752) |
<0.0001** |
Male – N (%) |
109 (62) |
72 (64) |
0.8023† |
Inborn- N (%) |
139 (79) |
94 (84) |
0.3582 † |
Oligohydramnios - N (%) |
12 (7) |
8 (7) |
>0.9999† |
Chorioamnionitis- N (%) |
41 (23) |
41 (37) |
0.0224† |
Antenatal steroids- N (%) |
|
|
0.5281† |
None/ <24hrs |
65 (37) |
37 (33) |
|
Completed course / > 7 days |
110 (63) |
75 (67) |
|
Postnatal Surfactant- N (%) |
172 (98) |
112 (100) |
0.2836† |
Failed extubation attempts before dexamethasone (%) |
|
|
0.0050¶ |
0 |
107 (61) |
89 (79) |
|
1 |
52 (30) |
18 (16) |
|
2 or more |
16 (9) |
5 (4) |
|
Days ventilated prior to dexamethasone - median (IQR) |
16 (13-22) |
15
(12-19) |
0.1586** |
Age at starting dexamethasone (days) - median (IQR) |
22 (16-29) |
17
(14-23) |
<0.0001** |
GA at dexamethasone (weeks) - median (IQR) |
28.9 (27.9-30.7) |
27.3
(26.4-28.5) |
<0.0001** |
Weight at starting dexamethasone (grams) - median (IQR) |
1075
(910-1262) |
863 (744-1050) |
<0.0001** |
Starting dose of dexamethasone (mg/kg/day) - median (IQR) |
0.29
(0.15-0.49) |
0.16 (0.15-0.47) |
0.2057** |
IVABx prior to/at dexamethasone - N (%) |
132 (75) |
91 (81) |
0.3090† |
Total fluid intake (mL/kg/day)- median (IQR) |
173 (156-180) |
171 (157
-180) |
0.8265** |
PN- N (%) |
69 (39) |
51 (46) |
0.3279† |
Enteral feeding - N (%) |
173 (99) |
106 (95) |
0.0597† |
PDA status at start of dexamethasone - N (%) |
|
|
0.0007¶ |
echo/open |
73 (42) |
67 (60) |
|
echo/closed |
34 (19) |
27 (21) |
|
presumed open |
26 (15) |
7 (6) |
|
presumed closed |
42 (24) |
11 (10) |
|
Ventilation mode at start dexamethasone - N (%) |
|
|
0.0005† |
Conventional |
143 (82) |
70 (63) |
|
HFOV |
32 (18) |
42 (38) |
|
MAP (cm H2O)- median (IQR) |
11 (10-12) |
13 (11-14) |
<0.0001** |
Average FiO2 24 hr prior to dexamethasone - median (IQR) |
0.35 (0.30-0.39) |
0.40 (0.33-0.48) |
<0.0001** |
Average SpO2 24 hr prior to dexamethasone - median (IQR) |
90 (89-92) |
90 (89-91) |
0.0198** |
Last pH before starting dexamethasone - median (IQR) |
7.30 (7.25-7.33) |
7.28 (7.23-7.34) |
0.1003** |
Last pCO2 before starting dexamethasone - median (IQR) |
57.9 (52.0-62.1) |
56.0 (51.0-62.9) |
0.4099** |
Last Hb before starting dexamethasone (g/L)- median (IQR) |
108 (94-124) |
106 (94-122) |
0.8002** |
Previous sepsis- N (%) |
16 (9) |
11 (10) |
0.8389† |
Previous airleaks- N (%) |
|
|
0.0590¶ |
nil |
139 (79) |
82 (73) |
|
Pneumothorax |
18 (10) |
13 (12) |
|
PIE |
8 (5) |
14 (13) |
|
Both |
10 (6) |
3 (3) |
|
CXR appearance- N (%) |
|
|
0.0002¶ |
Grade 1 / 2 |
122 (70) |
51 (46) |
|
Grade 3 |
46 (26) |
52 (46) |
|
Grade 4 |
7 (4) |
9 (8) |
|