Table 3.
Multivariate analysis of echocardiographic and LUS prediction of clinical events
| Variable | Univariate analysis, HR (95% CI) | Multivariate analysis, HR (95% CI) |
|---|---|---|
| Mortality: echocardiography | ||
| LVEF | 2.66 (1.1–5.8), P = .03 | 0.73 (0.22–2.03), P = .55 |
| SVI | 3.72 (1.69–8.39), P = .01 | 2.12 (1.001–5.23), P = .05 |
| PAT | 2.74 (1.26–6.26), P = .01 | 2.31 (0.84–6.7), P = .10 |
| TAPSE | 4.1 (1.93–9.0), P = .0003 | 4.3 (1.68–11.6), P = .002 |
| χ2 for model | 23.9 | |
| P value for model | <.0001 | |
| AIC | 218 | |
| Mortality: echocardiography and LUS | ||
| LVEF | 0.70 (0.22–2.00), P = .52 | |
| SVI | 3.09 (1.3–7.35), P = .01 | |
| PAT | 2.25 (0.83–6.6), P = .11 | |
| TAPSE | 3.21 (1.32–7.82), P = .01 | |
| LUS score | 2.78 (1.27–5.82), P = .01 | 2.38 (1.01–5.61), P = .04 |
| χ2 for model | 24.8 | |
| P value for model | <.0001 | |
| AIC | 216 | |
| P value for log likelihood | .01 | |
| Mechanical ventilation: echocardiography | ||
| LVEF | 0.96 (0.93–1.007), P = .09 | 0.95 (0.88–1.04), P = .28 |
| SVI | 0.96 (0.91–1.02), P = .21 | 0.97 (0.89–1.04), P = .43 |
| PAT | 0.97 (0.95–0.99), P = .01 | 0.97 (0.94–0.99), P = .01 |
| TAPSE | 0.52 (0.21–1.28), P = .15 | 0.98 (0.28–3.3), P = .90 |
| χ2 for model | 8.7 | |
| P value for model | .06 | |
| AIC | 91.4 | |
| Mechanical ventilation: echocardiography and LUS | ||
| LVEF | 1.00 (0.97-1.04), P = .64 | |
| SVI | 0.99 (0.97-1.04), P = .45 | |
| PAT | 0.99 (0.98–1.001), P = .07 | |
| TAPSE | 0.77 (0.49–1.05), P = .09 | |
| LUS score | 3.5 (1.4–8.9), P = .006 | 1.03 (1.04–1.06), P = .007 |
| χ2 for model | 17.8 | |
| P value for model | .003 | |
| AIC | 84.5 | |
| P value for log likelihood | .001 | |
| Composite event: echocardiography | ||
| LVEF | 2.39 (1.1–4.8), P = .02 | 0.82 (0.32–2.06), P = .66 |
| SVI | 3.6 (1.8–7.1), P = .0004 | 3.52 (1.63–7.59), P = .001 |
| PAT | 4.6 (2.0–12.3), P < .0001 | 2.41 (1.01–5.9), P = .04 |
| TAPSE | 3.4 (1.7–6.7), P < .0001 | 1.99 (1.29–6.8), P = .01 |
| χ2 for model | 22.6 | |
| P value for model | <.0001 | |
| AIC | 303 | |
| Composite event: echocardiography and LUS | ||
| LVEF | 0.95 (0.33–2.43), P = .92 | |
| SVI | 2.39 (1.04–5.46), P = .04 | |
| PAT | 2.06 (0.85–5.15), P = .11 | |
| TAPSE | 2.47 (1.07–5.73), P = .03 | |
| LUS score | 3.03 (1.33–6.82), P = .009 | |
| χ2 for model | 29.5 | |
| P value for model | <.0001 | |
| AIC | 292 | |
| P value for log likelihood | <.0001 | |
Bold indicates statistical significance.
AIC, Akaike information criterion.