Participant characteristics at chronic kidney disease register inclusion, start of dialysis or transplantation
| Chronic kidney disease | Peritoneal dialysis | Haemodialysis | Transplanted | |||
|---|---|---|---|---|---|---|
| Stage 4 | Stage 5 | Stages 4 and 5 | ||||
| N | 2041 | 999 | 3040 | 725 | 1791 | 606 |
| Sex (% men) | 1389 (68) | 586 (59) | 1975 (65) | 461 (64) | 1130 (63) | 387 (64) |
| Age (years) | ||||||
| Mean (SD) | 67 (15) | 65 (15) | 66 (15) | 60 (15) | 62 (15) | 48 (12) |
| Median (25th–75th) | 70 (58–78) | 68 (56–77) | 69 (58–78) | 62 (51–72) | 65 (54–75) | 50 (39–58) |
| n (%) | ||||||
| 18–49 | 288 (14) | 164 (16) | 452 (15) | 165 (23) | 353 (20) | 310 (51) |
| 50–59 | 289 (14) | 158 (16) | 447 (15) | 169 (23) | 324 (18) | 187 (31) |
| 60–69 | 457 (22) | 217 (22) | 674 (22) | 187 (26) | 446 (25) | 107 (18) |
| ≥70 | 1007 (49) | 460 (46) | 1467 (48) | 204 (28) | 668 (37) | 2 (0) |
| Education (years)* | ||||||
| ≤9 | 370 (28%) | 211 (30%) | 581 (29%) | 153 (26%) | 414 (31%) | 127 (21%) |
| 10–12 | 565 (42%) | 276 (40%) | 841 (41%) | 240 (40%) | 546 (41%) | 255 (42%) |
| >12 | 361 (27%) | 162 (23%) | 523 (26%) | 177 (30%) | 275 (20%) | 212 (35%) |
| Missing | 35 (3%) | 49 (7%) | 84 (4%) | 26 (4%) | 112 (8%) | 12 (2%) |
| Comorbidity† | ||||||
| Diabetes | 778 (38%) | 311 (31%) | 1 089 (36%) | 229 (32%) | 634 (35%) | 134 (22%) |
| Malignancies | 355 (17%) | 156 (16%) | 511 (17%) | 91 (13%) | 319 (18%) | 29 (5%) |
| Circulatory disease | 1678 (82%) | 739 (74%) | 2417 (80%) | 598 (82%) | 1484 (83%) | 461 (76%) |
| Hypertension | 1391 (68%) | 613 (61%) | 2004 (66%) | 517 (71%) | 1193 (67%) | 402 (66%) |
| Cardiovascular disease | 946 (46%) | 379 (38%) | 1325 (44%) | 297 (41%) | 867 (48%) | 147 (24%) |
| Myocardial Infarction‡ | 276 (14%) | 117 (12%) | 393 (13%) | 93 (13%) | 236 (13%) | 21 (3%) |
| Stroke | 228 (11%) | 117 (12%) | 345 (11%) | 64 (9%) | 185 (10%) | 27 (4%) |
| COPD§ | 133 (7%) | 55 (6%) | 188 (6%) | 32 (4%) | 121 (7%) | 11 (2%) |
*Education level only available in patients <75 years.
†Comorbid conditions defined as having a visit in inpatient or outpatient care during the past 10 years with a main or subdiagnosis of the respective ICD-codes used (specified in see online supplementary eTable 1).
‡Myocardial infarction also included as a subgroup of cardiovascular disease.
§Chronic obstructive pulmonary disease.
COPD, chronic obstructive pulmonary disease; ICD, International Classification of Diseases.