| Age |  | ||
---|---|---|---|---|
Preterm (n = 37,424) (%) | Term (n = 59,130) (%) | Unknown (n = 145) (%) | All (n = 96,699) (%) | |
Gestational age | 100.0 | 100.0 | 0 | 99.9 |
Sex | 99.9 | 99.9 | 99.3 | 99.9 |
Birth weight | 100.0 | 100.0 | 91.7 | 100.0 |
Antenatal steroids | 94.5 | 89.7 | 4.8 | 91.4 |
Maternal ethnicity | 75.6 | 66.9 | 1.4 | 70.2 |
Multiple births | 100.0 | 99.8 | 11.7 | 99.7 |
Mode of delivery | 90.7 | 75.7 | 2.8 | 81.4 |
Apgar score at 5 min | 87.6 | 73.9 | 0.7 | 79.1 |
Maternal age | 96.6 | 89.2 | 3.4 | 92.0 |
Inborna | 98.8 | 96.6 | 6.2 | 97.3 |
Drug treatment in the first 1 daybc |  |  |  | 91.9 |
Respiratory support in the first 1 dayc |  |  |  | 100.0 |