Age, sex, weight, and degree of preoperative tricuspid regurgitation did not reach statistical significance in a multivariable regression model and so were excluded.
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Experience Curve With the Cone Procedure for Ebstein's Anomaly: Effect on Cost and Resource Utilization.
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The sentences
Our sensitivity analysis demonstrated no evidence of an overall trend in declining hospital length of stay or ICU length of stay for the Fontan procedure, repair of Tetralogy of Fallot, repair of complete atrioventricular canal, or the Norwood procedure ( Supplemental Figures 5 to 8 ).
This may explain the statistically significant decline over time that failed to reach statistical significance when considering the change in resource utilization per procedure performed, that is, accumulated volume of production.