. Author manuscript; available in PMC: 2016 Aug 20.

Published in final edited form as: Pediatr Res. 2016 Apr 11;80(2):190–196. doi: 10.1038/pr.2016.77

Table 3.

Proportion of infants with major abnormalities on early cUS imaging

Age at imaging	Case N (%)	Control N (%)	OR	95%CI
cUS performed <36 hours	39/184 (21.2)	1/100 (1.0)	26.6	3.60-197.01
cUS perfomed <18 hours ^a	22/126 (17.5)	1/85 (1.2)	17.77	2.35-134.56

Abbreviations: cUS, cranial ultrasound

Analysis restricted to infants scanned at <18 hours of age. For this restricted analysis median age at scanning was 7.8 hours amongst cases (IQR 4.0-11.9) and 7.1 hours (IQR 3.4-11.2) amongst controls, p=0.210)