Table 2. Univariate logistic regression analysis for factors associated with survival of 7 days or less.
| Variable | OR (95% CI) | p-value |
| Age (years) | 1.00 (0.97–1.04) | 0.947 |
| Sex - male vs. female | 1.44 (0.63–3.41) | 0.395 |
| Functional status and symptom burden | ||
| Mean muscle power | 0.70 (0.48–1.00) | 0.051 |
| Cognitive impairment | 2.94 (1.28–7.03) | 0.013 |
| Edema | 0.94 (0.41–2.16) | 0.887 |
| Jaundice | 1.74 (0.76–4.01) | 0.188 |
| Ascites | 2.57 (1.10–6.02) | 0.028 |
| ECOG PS - grade 3 or 4 vs. 1 or 2 | 3.37 (1.28–10.62) | 0.021 |
| Heart rate variability indices | ||
| lnTP | 0.79 (0.58–1.00) | 0.080 |
| lnHFP | 0.82 (0.68–0.96) | 0.021 |
| ln(LFP/HFP) | 0.80 (0.51–1.22) | 0.308 |
OR: odds ratio, 95% CI: 95% confidence interval, ECOG PS: Eastern Cooperative Oncology Group performance status, lnTP: natural logarithm-transformed total power, lnHFP: natural logarithm-transformed high-frequency power, ln(LFP/HFP): natural logarithm-transformed (lower-frequency power/high frequency power).