Table 2:
Characteristics of patients selected for participation in the Dialysis Outcomes and Practice Patterns Study, phases 1–5 (sample, n = 65 003)
| Characteristic | Discontinued dialysis n = 1525 |
Died (other causes) n = 12 720 |
Alive at study end n = 50 755 |
|---|---|---|---|
| Age, mean ± SD, yr | 72.8 ± 11.8 | 69.3 ± 12.5 | 61.1 ± 14.9 |
| Dialysis duration, mean ± SD, yr | 2.6 ± 3.7 | 3.6 ± 4.8 | 3.8 ± 5.6 |
| Body mass index, mean ± SD | 24.9 ± 5.7 | 24·7 ± 5.8 | 25.2 ± 5.9 |
| Male gender, no. (%) | 815 (53.4) | 7515 (59.1) | 30 098 (59.3) |
| Laboratory values | |||
| Albumin level, mean ± SD, g/dL | 3.5 ± 0.6 | 3.5 ± 0.6 | 3.7 ± 0.5 |
| Creatinine level, mean ± SD, μmol/L | 602 ± 220 | 664 ± 238 | 778 ± 283 |
| Comorbidity information, no. (%) | |||
| Coronary heart disease | 926 (60.7) | 7154 (56.2) | 18 789 (37.0) |
| Other cardiovascular disease | 726 (47.6) | 5752 (45.2) | 14 174 (27.9) |
| Cerebrovascular disease | 418 (27.4) | 3017 (23.7) | 7014 (13.8) |
| Congestive heart failure | 742 (48.7) | 5747 (45.2) | 13 115 (25.8) |
| Diabetes | 745 (48.8) | 6074 (47.8) | 18 933 (37.3) |
| Gastrointestinal bleeding | 145 (9.5) | 1130 (8.9) | 2417 (4.8) |
| HIV infection | 8 (0.5) | 91 (0.7) | 286 (0.6) |
| Hypertension | 1258 (82.5) | 10 357 (81.4) | 40 940 (80.7) |
| Lung disease | 357 (23.4) | 2515 (19.8) | 4757 (9.4) |
| Neurologic disease | 308 (20.2) | 2025 (15.9) | 4334 (8.5) |
| Psychiatric disorder | 424 (27.8) | 2901 (22.8) | 8090 (15.9) |
| Peripheral vascular disease | 615 (40.3) | 5056 (39.7) | 10 918 (21.5) |
| Recurrent cellulitis/gangrene | 205 (13.4) | 1817 (14.3) | 3145 (6.2) |
| Cancer other than skin | 358 (23.5) | 2196 (17.3) | 5673 (11.2) |
| Cachexia | 264 (17.3) | 1775 (14.0) | 3076 (6.1) |
| Living status, no. (%)* | |||
| Lives alone | 284 (18.6) | 2134 (16.8) | 8437 (16.6) |
| Lives with family or friend | 948 (62.2) | 8892 (69.9) | 38 590 (76.0) |
| Lives in nursing home or institution | 249 (16.3) | 1210 (9.5) | 1640 (3.2) |
| Functional status, no. (%) | |||
| Eats independently | 1398 (91.7) | 11 799 (92.8) | 49 072 (96.7) |
| Able to transfer independently | 1003 (65.8) | 8395 (66.0) | 40 402 (79.6) |
Note: SD = standard deviation.
*
Numbers do not add up to total numbers of patients owing to response “Other” and missing data.