. Author manuscript; available in PMC: 2016 Sep 24.

Published in final edited form as: J Perinatol. 2016 Mar 24;36(5):352–356. doi: 10.1038/jp.2016.38

Table 3.

Adjusted risk of any intraventricular hemorrhage stratified by gestational age according to antenatal steroid administration

Gestational age (Weeks)	Total n	Any IVH n	Adjusted OR for antenatal steroids (95% CI) Any IVH	Severe IVH n	Adjusted OR for antenatal steroids (95% CI) Severe IVH
<= 22 6/7	123	81	0.23 (0.09, 0.63)^*	50	0.54 (0.23, 1.30)
23 0/7 – 23 6/7	809	483	0.66 (0.47, 0.92)^*	260	0.55 (0.39, 0.77)^*
24 0/7 – 24 6/7	1884	923	0.58 (0.43, 0.77)^*	461	0.47 (0.35, 0.63)^*
25 0/7 – 25 6/7	2256	884	0.58 (0.44, 0.76)^*	344	0.50 (0.36, 0.69)^*
26 0/7 – 26 6/7	2663	818	0.70 (0.54, 0.91)^*	281	0.52 (0.37, 0.74)^*
27 0/7 – 27 6/7	3073	787	0.73 (0.57, 0.94)^*	236	0.54 (0.38, 0.78)^*
28 0/7 – 28 6/7	3603	687	0.65 (0.51, 0.84)^*	156	0.47 (0.31, 0.72)^*
29 0/7 – 29 6/7	3903	639	0.67 (0.52, 0.86)^*	91	0.31 (0.19, 0.51)^*
30 0/7 – 30 6/7	3543	425	0.74 (0.55, 1.00)	35	0.47 (0.22, 1.05)
31 0/7 – 31 6/7	2494	273	1.14 (0.75, 1.72)	25	0.86 (0.28, 2.66)
32 0/7 – 32 6/7	1625	165	0.75 (0.48, 1.15)	11	0.49 (0.11, 2.10)

p < 0.05

Any intraventricular hemorrhage (IVH) indicates grades 1-4; severe IVH indicates grades 3 and 4. Odds ratios (ORs) are adjusted for maternal socio-demographic and medical risk factors as noted in Methods, with corresponding 95% confidence intervals (Cis).