. Author manuscript; available in PMC: 2020 May 1.

Published in final edited form as: J Pediatr. 2019 Feb 6;208:156–162.e5. doi: 10.1016/j.jpeds.2018.12.063

Table IV.

Median and interquartile ranges for hospital rates of obstetric interventions

Gestational age at birth	Antenatal Corticosteroids % (IQR)	Antepartum antibiotics % (IQR)	Delivery by C-section % (IQR)
22 weeks	6.9 (0.0–13.8)	49.3 (36.3–67.2)	0.0 (0.0–9.2)
23 weeks	50.0 (43.7–67.1)	66.7 (58.9–71.2)	19.0 (7.0–35.4)
24 weeks	91.4 (84.3–96.3)	74.7 (65.7–80.2)	61.4 (51.4–69.9)
25 weeks	91.7 (86.8–95.8)	69.3 (66.0–77.8)	70.3 (61.5–72.5)
26 weeks	90.1 (83.1–96.8)	68.5 (54.5–75.5)	69.5 (66.4–75.4)

IQR=interquartile range