Table 3.
Prognostic role of minSO2 in multivariate analysis
| Multivariate Cox regression analysis | ||
|---|---|---|
| HR (95%CI) | P | |
| MinSO 2 as a continuous variable | ||
| Age (per 10 years increase) | 1.147 (1.037‐1.269) | .008 |
| BMI (per 5 kg/m2 increase) | 0.652 (0.468‐0.908) | .011 |
| NYNA III/IV (yes vs no) | 1.774 (1.112‐2.831) | .016 |
| NTproBNP (per 500 pg/mL increase) | 1.028 (1.019–1.038) | <.001 |
| MAP at discharge (per 10 mm Hg increase) | 0.780 (0.660‐0.922) | .004 |
| MinSO2 (per 1% increase) | 0.985 (0.973‐0.997) | .017 |
| MinSO 2 as a categorical variable | ||
| Age (per 10 years increase) | 1.147 (1.037‐1.268) | .007 |
| NYNA III/IV (yes vs no) | 1.782 (1.117‐2.845) | .015 |
| NT‐proBNP (per 500 pg/mL increase) | 1.028 (1.018–1.037) | <.001 |
| MAP at discharge (per 10 mm Hg increase) | 0.789 (0.667‐0.934) | .006 |
| ACEI/ARB at discharge (yes vs no) | 0.665 (0.489‐0.906) | .010 |
| MinSO2 <79.0% (yes vs no) | 1.395 (1.038‐1.876) | .028 |
Abbreviations: ACEI, angiotensin converting enzyme inhibitor; ARB, angiotensin receptor blocker; BMI, body mass index; CI, confidence interval; HR, hazard raito; MAP, mean atrial blood pressure; MinSO2, the minimal oxygen saturation; NT‐proBNP, N‐terminal pro‐brain natriuretic peptide; NYHA, New York Heart Association.