Table 4. Multivariate analysis of short term (in hospital) and long term (after discharge) survival.
| short term survival | long term survival | |
|---|---|---|
| (logistic regression) | (Cox regression with covariates) | |
| OR (95% CI) | HR (95% CI) | |
| Variables with independent predictive value | ||
| 6MWT (unable to perform) | 3.26 (1.38–7.69) | 2.15 (1.35–3.42) |
| Handgrip strenght < 50th percentile | 2.74 (1.14–6.58) | |
| Serum albumin <3 g/dl | 2.72 (1.23–5.99) | |
| Sepsis | 2.78 (1.15–6.71) | |
| Cancer | 3.79 (1.42–10.1) | 2.57 (1.44–4.58) |
| Charlson index >5 | 2.52 (1.11–5.71) | 1.77 (1.12–2.81) |
| High degree stress | 2.99 (1.21–7.36) | |
| SNS > 4 | 2.53 (1.59–4.00) | |
| Ankle Brachial Index <0.5 | 2.49 (1.26–4.90) |
In both analysis we include the following variables: age ≥ 80 years, SNS (subjective nutritional score)> 4, serum albumin under 3 g/dl, high degree of stress, inability to perform the 6MWT, handgrip strength below the 50th percentile, ABI less than 0.5, sepsis, cancer and Charlson index over 5 points.
OR: Odd ratio; 95% CI: 95% confidence interval;
HR: hazard risk.
6MWT: six minute walking test; SNS: Subjective Nutritional Score.
High degree clinical stress: according with the presence of hyper-metabolic, hyper-catabolic disease.