Table 5 Multivariable logistic regression analysis of variables selected based upon results of backwards stepwise regression, boosted tree model, and random forest model.

From: Preoperative stroke before cardiac surgery does not increase risk of postoperative stroke

Variable

Non-endocarditis

Infective endocarditis

Odds ratio [95% CI]

p-value

Odds ratio [95% CI]

p-value

(Intercept)

0.01 [0.00, 0.49]

0.021

0.00 [0.00, 0.87]

0.028

Recent (compared to remote)

1.31 [0.25, 6.93]

0.752

1.21 [0.07, 20.83]

0.897

Intermediate (compared to remote)

1.13 [0.13, 9.95]

0.914

0.12 [0.00, 3.14]

0.208

Age

1.03 [0.98, 1.08]

0.304

1.02 [0.94, 1.12]

0.601

Preoperative length of stay

1.06 [0.95, 1.19]

0.287

1.12 [0.98, 1.28]

0.105

Cross clamp time

1.05 [0.61, 1.83]

0.849

2.30 [0.53, 9.92]

0.267

  1. CI confidence interval.