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Table 3 Multivariable logistic regression analysis for cardiovascular dysfunction risk

From: Effect of cardiopulmonary bypass reoxygenation on myocardial dysfunction following pediatric tetralogy of Fallot repair

 

Odds ratio (95% CI)

P value

Categorical PpO2, %

  

Lower PpO2

1.000 (ref)

 

Higher PpO2

1.858 (1.078, 3.202)

0.026

Clinical covariates

  

Sex, %

 

0.667

 Female

1.000 (ref)

 

 Male

0.886 (0.510, 1.539)

 

SpO2 (per % increase)

0.954 (0.927, 0.983)

0.002

LVEDV index, ml/m2

1.005 (0.981, 1.030)

0.668

Pulmonary annular Z-score, %

  

 < − 4.0

1.000 (ref)

 

 − 2.0 to − 4.0

0.747 (0.395, 1.415)

0.372

 > − 2.0

0.451 (0.220, 0.924)

0.030

McGoon index, %

 

0.341

 ≤ 1.5

1.000 (ref)

 

 > 1.5

1.325 (0.742, 2.366)

 

Blood transfusion, %

  

 None (< 10 ml per kg)

1.000 (ref)

 

 Minor (10–30 ml per kg)

1.011 (0.481, 2.125)

0.978

 Major (> 30 ml per kg)

1.015 (0.455, 2.264)

0.972

CPB time (per min increase)

1.009 (1.004, 1.014)

0.0002

  1. PpO2 = perfusate oxygenation; SpO2 = percutaneous oxyhemoglobin saturation; LVEDV = left ventricular end-diastolic volume; CPB = cardiopulmonary bypass. CI = confidence interval