Table 1 Demographic characteristics according to quartile of dialysis vintage
Total | 1stquartile | 2ndquartile | 3rdquartile | 4thquartile | P | |
|---|---|---|---|---|---|---|
Age at initiation of dialysis, yr | 55.0 ± 16 | 48.0 ± 14 | 49.7 ± 16 | 55.1 ± 15 | 63.9 ± 15 | <0.001 |
Sex, % | 0.138 | |||||
→ Male | 60.5 | 55.7 | 58.1 | 63.5 | 64.7 | |
→ Female | 39.5 | 44.3 | 41.9 | 36.5 | 35.3 | |
Initial dialysis modality, % | <0.001 | |||||
→ HD | 80.1 | 92.8 | 52.5 | 78.7 | 96.3 | |
→ HHD | 2.0 | 4.3 | 3.4 | 0 | 0.4 | |
→ PD | 16.8 | 3.0 | 43.3 | 17.4 | 3.3 | |
→ LC | 1.2 | 0 | 0.8 | 3.7 | 0 | |
Vital status, % | <0.001 | |||||
→ Alive | 23.4 | 2.5 | 19.1 | 29.0 | 43.2 | |
→ Dead | 63.4 | 64.3 | 68.5 | 65.6 | 55.2 | |
→ Unknown | 13.2 | 33.2 | 12.4 | 5.4 | 1.7 | |
Age at death, yr | 65.9 ± 13 | 56.7 ± 13 | 63.2 ± 11 | 67.4 ± 11 | 73.9 ± 11 | <0.001 |
Survival, % | ||||||
→ 3 years | 71.1 | 64.0 | 72.2 | 77.9 | 67.7 | |
→ 5 years | 60.4 | 52.7 | 64.1 | 66.4 | 54.8 |