Table 1.
Comparison for clinical risk factors at starting hemodialysis
| Variables | Nonsurvivor (n=451) | Survivor (n=2,241) | P |
|---|---|---|---|
| Age (y) | 64.7±14.9 | 60.2±14.6 | <0.001 |
| Sex (male) | 283 (62.7) | 1,367 (61.0) | 0.492 |
| Body mass index (kg/m2) | 22.9±3.9 | 23.2±6.4 | 0.412 |
| On admission | |||
| Via emergency room | 360 (79.8) | 1,644 (73.4) | 0.004 |
| After cardiac pulmonary resuscitation | 94 (20.8) | 16 (0.7) | <0.001 |
| Comorbidities | |||
| Hypertension | 237 (52.5) | 1,630 (72.7) | 0.246 |
| Diabetes mellitus | 176 (39.7) | 1,116 (49.8) | <0.001 |
| Cardiovascular disease | 63 (14.0) | 335 (14.9) | 0.663 |
| Hyperlipidemia | 10 (2.2) | 56 (2.5) | 0.868 |
| Solid tumor | 87 (19.3) | 237 (10.6) | <0.001 |
| Heart failure | 17 (3.8) | 79 (3.5) | 0.876 |
| Hematologic malignancy | 38 (8.4) | 34 (1.5) | <0.001 |
| Smoking | 161 (35.7) | 665 (29.7) | 0.035 |
| Cause of admission | |||
| Chronic kidney disease | 149 (33.0) | 1,565 (69.8) | <0.001 |
| Urinary tract infection | 9 (2.0) | 27 (1.2) | 0.180 |
| Pneumonia | 78 (17.3) | 112 (5.0) | <0.001 |
| Acute myocardial infarction | 31 (6.9) | 83 (3.7) | 0.004 |
| Postchemotherapy | 27 (6.0) | 31 (1.7) | <0.001 |
| Postbleeding | 107 (23.7) | 218 (9.7) | <0.001 |
| Stone | 10 (2.2) | 35 (1.6) | 0.315 |
| Postoperation | 17 (3.8) | 58 (2.6) | 0.160 |
| Others | 23 (5.1) | 112 (5.0) | 0.612 |
Data are presented as mean ± SD or n (%).