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Table 3 Estimates and standard errors for variables included in the propensity score model

From: High-frequency oscillatory ventilation and short-term outcome in neonates and infants undergoing cardiac surgery: a propensity score analysis

Variable Coefficient estimate Standard error P-v alue
Intercept -2.87 0.58 < 0.001
The "HFOV index"a 3.94 0.48 < 0.001
Age (days) 0.002 0.002 0.19
Weight (kg) -0.37 0.12 0.002
Aristotle scoreb -0.09 0.06 0.10
Surgery with cardiopulmonary bypass 0.87 0.37 0.02
Surgery with deep hypothermic circulatory arrest -0.97 0.33 0.004
Re-operation 0.59 0.34 0.09
Requirement for a delayed sternal closure 0.81 0.29 0.005
Acute kidney injury requiring renal replacement therapy 0.36 0.62 0.56
Requirement for renal replacement therapy on the day of surgery 1.82 0.63 0.004
  1. The propensity score model included only patients operated from 1 January 2007 through 30 June 2010.
  2. HFOV, high-frequency oscillatory ventilation
  3. acalculated as the prevalence of HFOV from 1 January 2007 through 30 June 2010
  4. baccounting for the surgical complexity