Table 2.
Dialysis-specific characteristics of the study cohort
| Characteristic | Hemodialysis | P Value | Peritoneal Dialysis | P value | ||
|---|---|---|---|---|---|---|
| Aboriginal | Caucasian | Aboriginal | Caucasian | |||
| Cause of ESRD % (N) | ||||||
| Hypertension | 5.9 (109) | 24.9 (5331) | <0.001 | 8.3 (46) | 21 (1422) | <0.001 |
| Diabetes mellitus | 66.3 (1219) | 34.3 (7349) | <0.001 | 59.2 (328) | 35.5 (2379) | <0.001 |
| Glomerulonephritis | 14.7 (271) | 12.9 (2754) | 0.02 | 20.2 (112) | 19.0 (1285) | 0.48 |
| Obstruction | 1.2 (22) | 3.3 (717) | <0.001 | 1.4 (8) | 2.9(199) | 0.04 |
| Interstitial | 0.8 (15) | 1.1 (227) | 0.34 | 1.3 (7) | 1.3 (86) | 0.96 |
| Polycystic kidney disease | 0.7 (13) | 4.2 (891) | <0.001 | 1.3 (6) | 6.8 (459) | <0.001 |
| Other | 3.5 (72) | 9.1 (1960) | <0.001 | 2.7 (15) | 6.9 (467) | <0.001 |
| Unknown | 6.4 (118) | 10.3 (2210) | <0.001 | 5.8 (32) | 7.0 (471) | 0.32 |
| Albumin (g/L; mean ± SD) | 28.2±6.9 | 31.8±6.8 | <0.001 | 32.0±6.8 | 35.3±6.3 | <0.001 |
| Hemoglobin (g/L; mean ± SD) | 93.5±18.1 | 100.8±17.2 | <0.001 | 103.6±18.1 | 109.3±21.8 | <0.001 |
| Phosphorous (mmol/L; mean ± SD) | 2.21±0.82 | 1.96±0.73 | <0.001 | 2.05±0.61 | 1.82±0.58 | <0.001 |
| Median number of days with predialysis care (IQR) | 108 (588) | 119 (790) | 0.62 | 214 (744) | 340 (1123) | 0.002 |
| Any predialysis care % (N) | 71.9 (1323) | 70.3 (15,071) | 0.22 | 81.2 (450) | 78.1 (5293) | <0.001 |
| AVF/AVG % (N) | 11.2 (206) | 14.4 (3083) | <0.001 | NA | NA | NA |
N, cohort size; IQR, interquartile range; AVF, arteriovenous fistula; AVG, arteriovenous graft; NA, not applicable.