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. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: Pediatr Res. 2013 Dec 30;75(4):570–575. doi: 10.1038/pr.2013.253

Table 4.

Multivariate Regression of Factors Associated with PDA Treatment and Factors Associated with Death or BPD

Variable Associated with Treatment Odds Ratio 95% Confidence Interval p-value
Gestational Age (wks) 0.5 0.4-0.7 <0.0001
Year of Birth 0.998 0.997-0.999 0.0001
Ductal Diameter (mm) 4.3 1.5-12.2 0.006
LPA Diastolic Velocity (m/s) 28 1.3-613 0.03
Variable Associated with Death or BPD Odds Ratio 95% Confidence Interval p-value
Gestational Age (wks) 0.6 0.5-0.8 <0.0001
Year of Birth 1.001 1-1.001 0.13
Treatment 1.2 0.5-3 0.67
ECHO Score 0.9 0.7-1.1 0.18
Clinical Score 2 0.7-6.2 0.21