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Table 2 Simple linear regression model of potential predictors of increased pulmonary artery catheter placement time

From: Dilated aortic root influences pulmonary artery catheter placement in anesthetized patients

  Parameter estimation (95% confidence limits) SE P value
Age (year) − 0.274 (− 1.23–0.737) 0.493 0.619
Height (cm) 0.653 (− 0.361–1.666) 0.509 0.204
Weight (kg) 0.236 (− 0.613–1.103) 0.435 0.590
CTR (%) 0.461 (− 1.0141–1.936) 0.740 0.535
LVEF (%) − 0.681 (− 1.442–0.081) 0.382 0.079
Degree of TR 4.43 (− 8.89–17.74) 6.68 0.51
Aortic annulus/BSA (mm/m2) 7.29 (0.71–13.85) 3.30 0.03
S Val/BSA (mm/m2) 3.09 (0.33–5.86) 1.39 0.029
STJ/BSA (mm/m2) 3.95 (0.51–7.39) 1.73 0.025
AscAo/BSA (mm/m2) 1.73 (− 0.59–4.04) 1.16 0.142
  1. CTR cardiothoracic ratio, LVEF left ventricular ejection fraction, TR tricuspid regurgitation, S Val sinuses of Valsalva, STJ sinotubular junction, AscAo proximal ascending aorta