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Multivariable logistic regression testing volume-outcome relationships for the entire cohort of infants with CDH. *High-volume and low-volume categories are compared with the median annual volumes including for all complex neonatal surgery (n = 130), cardiac surgery (n = 37), thoracic surgery (n = 23), abdominal surgery (n = 55), CDH repair volume (n = 7), overall NICU volume (n = 410), VLBW volume (n = 85), and ECMO volume (n = 8).
