Research Article
Development of an Open-Heart Intraoperative Risk Scoring Model for Predicting a Prolonged Intensive Care Unit Stay
Table 3
Risk factors associated with a prolonged length of ICU stay from multivariate logistic regression analysis and the OHIR score.
| Variable outcomes | Regression coefficient | Adjusted OR | 95% CI | value |
| Age (≥60 years) | 0.974 | 2.648 | 1.217–5.762 | 0.014 | ratio (≤200 mmHg) | 0.857 | 2.357 | 1.048–5.301 | 0.038 | Platelet count (≤120,000/mm3) | 0.847 | 2.333 | 1.011–5.383 | 0.047 | Inotropic drugs (≥2 items) | 1.593 | 4.920 | 2.212–10.943 | <0.001 | Potassium level (≤3.2 mEq/L) | 0.910 | 2.485 | 0.965–6.394 | 0.059 | Atrial fibrillation (grading ≥2) | 0.934 | 2.545 | 1.196–5.418 | 0.015 | Constant | −2.576 | 0.076 | — | <0.001 |
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ICU: intensive care unit; OHIR: Open-Heart Intraoperative Risk; OR: odds ratio; CI: confidence intervals.
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