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Attributes of infants who survived to 1 year adjusted age in Epochs 1 and 2. |
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| Epoch 1 (n = 207)* |
Epoch 2 (n = 251)* |
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|
|
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| Seen (n = 187) |
Not Seen (n = 20) |
Seen (n = 214) |
Not Seen (n = 37) |
|
|
|
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| Postnatal steroids |
27 (14) |
0 |
30 (14) |
3 (8) |
| Airleak† |
23 (12) |
0 |
21 (10) |
4 (11) |
| Chronic lung disease‡ |
81 (43) |
4 (20) |
91 (43) |
9 (24) |
| CUS abnormality§ |
13 (7) |
1 (5) |
28 (13) |
1 (3) |
| Non-white |
88 (47) |
9 (45) |
101 (47) |
12 (57) |
| Severe ROP∥ |
23 (12) |
1 (5) |
30 (14) |
4 (11) |
| Multiple gestation |
11 (6) |
3 (15) |
48 (22) |
2 (5) |
| Mother married |
102 (55) |
8 (40) |
107 (50) |
12 (32) |
| Maternal education¶ |
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| < High School |
35 (21) |
39 (23) |
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| High School |
73 (45) |
63 (36) |
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| > High School |
55 (34) |
71 (41) |
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* Data presented as number of infants (percentages of group). † Pneumothorax or pulmonary interstitial emphysema ‡ Use of supplemental oxygen at 36 weeks postmenstrual age § Cranial ultrasound abnormality: post-hemorrhagic hydrocephalus; persistent ventricular dilation; intraparenchymal echolucency ∥ Severe ROP, retinopathy of prematurity requiring surgery ¶ Maternal education data were available for 163 Epoch 1 subjects and 173 Epoch 2 subjects who were seen at 12 months adjusted age | ||||
Washburn et al. BMC Pediatrics 2007 7:20 doi:10.1186/1471-2431-7-20 |
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