Table 1. Baseline characteristics of the training set and validation set.
| Features | Training set (n=235) | Validation set (n=184) | P-value |
| Age (years) | 69.25±9.12 | 72.97±8.06 | <0.001 |
| Sex | 0.006 | ||
| Male | 100 (42.6%) | 104(56.5%) | |
| Female | 135 (57.4%) | 80(43.5%) | |
| PD duration (years) | 7.90±5.44 | 8.59±5.63 | 0.204 |
| HY | 0.547 | ||
| ≤3 | 148 (63.0%) | 122 (66.3%) | |
| ≥4 | 87 (37.0%) | 62 (33.7%) | |
| MMSE | 24.42±4.98 | 24.38±5.83 | 0.947 |
| Albumin (mg/dL) | 4.03±0.41 | 3.68±0.45 | <0.001 |
| CRP | - | ||
| <0.3mg/L | 70 (29.8%) | - | |
| 0.3-0.8mg/L | 93 (39.6%) | - | |
| >0.8mg/L | 72 (30.6%) | - | |
| NSAIDs | - | ||
| Non | 195(83.0%) | - | |
| Current/habitual | 40(17.0%) | - | |
| Vital status | 0.002 | ||
| Alive | 192(81.7%) | 170(92.4%) | |
| Deceased | 43 (18.3%) | 14 (7.6%) |