Table 3. Univariate and multivariate Cox regression for predicting mortality.
| Variables | Univariate Analysis | Multivariate Analysis | ||
|---|---|---|---|---|
| HR (95% CI) | p Value | HR (95% CI) | p Value | |
| Female | 0.69 (0.07–5.79) |
0.69 | - | - |
| Age | 0.99 (0.94–1.03) |
0.72 | - | - |
| SpO2 ≤93% | 11.37 (1.34–95.51) | 0.026 | 8.479 (0.980–73.389) |
0.052 |
| RDW ≥14,5% | 8.55 (1.02–71.66) |
0.048 | 1.592 (0.127–19.966) |
0.718 |
| BNP >300 pg/ml | 2.27 (0.35–14.55) |
0.38 | - | - |
| TAPSE <18 mm | 0.98 (0.21–4.38) |
0.97 | - | - |
| TRV (m/s) | 1.60 (0.892–2.869) |
0.115 | - | - |
| PASP (mmHg) | 1.003 (0.97–1.037) |
0.871 | - | - |
| FAC (%) | 1.002 (0.953–1.055) |
0.928 | - | - |
| S′ <9.5 cm/s | 0.60 (0.113–3.190) |
0.549 | - | - |
| TAPSE/PASP <0.19 mm/mmHg | 1.375 (0.262–7.220) |
0.707 | - | - |
| RA area >18 cm2 | 2.838 (0.861–9.351) |
0.086 | - | - |
| RA strain <25% | 4.8 (0.56–41.7) | 0.15 | - | - |
| RV strain <16% | 11.0 (1.3–93.3) | 0.028 | 3.938 (0.412–37.604) |
0.234 |
| Pericardial effusion | 11.6 (2.0–65.8) | 0.006 | 4.088 (0.551–30.322) |
0.168 |
HR: hazard ratio; SpO2: peripheral arterial oxygen saturation; RDW: red cell distribution width; BNP: brain natriuretic peptide; TAPSE: tricuspid annular plane systolic excursion; TRV: tricuspid regurgitation velocity; PASP: pulmonary artery systolic pressure; FAC: fractional area change; S′: tricuspid annular peak systolic velocity; RA: right atrium; RV: right ventricle.