Table 1.
Characteristics of infants admitted to neonatal units in England and Wales from 2010 to 2017
| All gestational age groups |
Extremely preterm (< 28 weeks) |
Very preterm (28–31 weeks) |
Moderate to late preterm (32–36 weeks) |
Term (≥ 37 weeks) |
||
|---|---|---|---|---|---|---|
|
Number n (%) |
623,250 |
17,501 (2.8) |
40,607 (6.5) |
193,536 (31.0) |
371,606 (59.6) |
|
|
Gestational age (weeks) median (IQR) |
37 (35–40) |
26 (24–27) |
30 (29–31) |
35 (33–36) |
39 (38–40) |
|
|
Birth weight (grams) median (IQR) |
2896 (2172–3500) |
820 (680–970) |
1380 (1170–1594) |
2236 (1910–2590) |
3365 (2956–3760) |
|
|
Female n (%) |
276,929 (44.4) |
8,077 (46.2) |
18,519 (45.6) |
88,491 (45.7) |
161,842 (43.6) |
|
|
Length of hospital stay (days) median (IQR) |
5 (3–13) |
83 (58,107) |
43 (33–57) |
11 (5–18) |
3 (2–6) |
|
| Outcome of neonatal care, n (%) | Died |
8,378 (1.3) |
4,072 (23.3) |
1,309 (3.2) |
1,217 (0.6) |
1,780 (0.5) |
| Discharged home | 407,948 (65.5) | 12,365 (70.7) |
38,025 (93.6) |
150,375 (77.7) | 207,183 (55.8) | |
| Transferred for further care | 205,326 (32.9) |
1,001 (5.7) |
1,213 (3.0) |
41,660 (21.5) | 161,452 (43.4) | |
| Missing |
1,598 (0.3) |
63 (0.4) |
60 (0.1) |
2834 (0.1) |
1,191 (0.3) |
IQR, interquartile range; SD, standard deviation