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. Author manuscript; available in PMC: 2017 Jul 1.
Published in final edited form as: J Pediatr. 2016 Apr 23;174:52–56. doi: 10.1016/j.jpeds.2016.03.066

Table 3.

Multiple logistic regression model (using covariates with univariate p-values <0.1) for factors significantly associated with severe IVH

Metric Unit Increase Odds Ratio 95% CI p-value
Apgar 5 min 1 score unit 0.76 0.60 – 0.96 0.02
Mean ABP 1 mmHg 0.96 0.86 – 1.07 0.44
EGA 1 week 0.95 0.70 – 1.29 0.76
Mean DCM 1 mmHg 1.14 1.02 – 1.26 0.02
5 mmHg 1.89 1.10 – 3.23
Vasopressor use 1.62 0.65 – 4.06 0.30

Apgar 5 min – 5-minute Apgar score; ABP – arterial blood pressure; EGA – estimated gestational age; DCM – diastolic closing margin, shown for 1-mmHg unit effect size and a more clinically relevant effect size of 5-mmHg.