Table 1.
Baseline patient characteristics by treatment modality at the start of RRT.
| Characteristics | Entire Study Population (n = 16,215) | Dialysis (n = 11,823) |
Kidney Transplantation (n = 4392) | Pre-Emptive Tx (n = 612) # | Living-Donor Tx (n = 1754) | Deceased-Do nor Tx (n = 2645) |
|---|---|---|---|---|---|---|
| Age (years) *** | ||||||
| 18–39 | 8.9 | 2.3 | 26.7 | 35.4 | 38.3 | 19.0 |
| 40–49 | 10.1 | 4.8 | 24.2 | 23.1 | 24.2 | 24.2 |
| 50–59 | 16.5 | 11.5 | 29.8 | 25.5 | 24.2 | 33.5 |
| 60+ | 64.6 | 81.4 | 19.4 | 16.0 | 13.3 | 23.4 |
| Male | 65.4 | 65.5 | 65.1 | 62.5 | 66.7 | 64.0 |
| Year of first RRT *** | 2004 (5.1) | 2004 (5.2) | 2003 (4.9) | 2005 (5.3) | 2004 (5.0) | 2003 (4.8) |
| Education *** | ||||||
| mandatory | 46.2 | 54.1 | 25.1 | 15.4 | 19.7 | 28.6 |
| high school | 38.5 | 34.9 | 48.0 | 48.5 | 49.1 | 47.3 |
| college | 15.3 | 11.0 | 26.9 | 36.2 | 31.2 | 24.0 |
| Marital status *** | ||||||
| married | 52.3 | 52.8 | 51.0 | 55.8 | 53.8 | 49.2 |
| single | 20.5 | 15.7 | 33.3 | 34.4 | 35.7 | 31.7 |
| divorced | 15.1 | 15.6 | 13.6 | 8.4 | 9.6 | 16.3 |
| widow | 12.1 | 15.9 | 2.1 | 1.5 | 0.9 | 2.8 |
| Disposable income *** | ||||||
| quintile 1 (0–99,998 SEK) | 20.0 | 21.0 | 17.3 | 12.1 | 16.7 | 17.6 |
| quintile 2 (100,002–122,743 SEK) | 20.0 | 21.7 | 15.4 | 13.1 | 14.2 | 16.2 |
| quintile 3 (122,755–146,224 SEK) | 20.0 | 21.7 | 15.5 | 15.4 | 14.6 | 16.1 |
| quintile 4 (146,231–188,732 SEK) | 20.0 | 19.1 | 22.5 | 20.1 | 23.5 | 21.9 |
| quintile 5 (188,751–6,685,735 SEK) | 20.0 | 16.5 | 29.3 | 39.3 | 30.9 | 28.2 |
| Swedish ** | 86.8 | 86.3 | 88.2 | 90.5 | 90.2 | 86.9 |
| missing | 9.6 | 10.5 | 7.4 | 6.1 | 5.6 | 8.5 |
| Tx centers *** | 48.8 | 47.9 | 51.1 | 57.1 | 51.9 | 50.6 |
| Primary renal disease *** | ||||||
| APKD | 7.0 | 4.1 | 14.7 | 15.1 | 13.4 | 15.5 |
| diabetic nephropathy | 25.6 | 28.3 | 18.5 | 15.1 | 15.9 | 20.2 |
| glomerulonephritis | 15.3 | 10.0 | 29.5 | 31.2 | 34.4 | 26.2 |
| hypertension | 12.1 | 14.5 | 5.6 | 3.6 | 4.8 | 6.1 |
| pyelonephritis | 3.5 | 3.6 | 3.4 | 2.5 | 2.4 | 4.1 |
| unspecified kidney disease | 12.0 | 13.3 | 8.3 | 12.3 | 8.4 | 8.3 |
| others | 24.5 | 26.2 | 20.1 | 20.3 | 20.8 | 19.6 |
| Comorbidities *** | ||||||
| hypertension | 70.4 | 71.0 | 68.8 | 67.3 | 68.8 | 68.7 |
| diabetes mellitus | 31.3 | 36.0 | 18.6 | 16.0 | 15.7 | 20.5 |
| heart disease | 35.0 | 43.8 | 11.2 | 6.6 | 9.0 | 12.6 |
| cancer | 12.6 | 16.2 | 3.0 | 2.5 | 2.9 | 3.0 |
RRT—renal replacement therapy; Tx—kidney transplantation; APKD—adult polycystic kidney disease; SEK—Swedish krona. Pre-emptive Tx can be either living- or deceased-donor Tx. Disposable income was divided into quintiles, where quintile 1 was the most disadvantaged and quintile 5 was the most advantaged. Continuous variables presented as mean (and standard deviations), categorical variables presented as percent of total. Groups (kidney transplantation vs. dialysis) were compared by t-test for continuous variables and by chi-square for categorical variables. ** p < 0.01; *** p < 0.001.