Table 1.
Baseline Cohort Characteristics.
| Characteristics | Entire cohort (N = 116) | Maximum reported recovery time (N = 108) | |||
|---|---|---|---|---|---|
| 0 hours (N = 9) | >0 to 2 hours (N = 33) | >2 to 6 hours (N = 27) | >6 hours (N = 39) | ||
| Age (y) | 68 (58-77) | 79 (68-81) | 65 (54-72) | 68 (62.5-76) | 69 (60.5-78) |
| Female | 44 (37.9%) | 3 (33.3%) | 11 (33.3%) | 12 (44.4%) | 16 (41.0%) |
| Dialysis vintage (y) | 4 (2-6) | 3 (2-3) | 4 (1-4) | 4 (2.5-8.5) | 3 (2-5.5) |
| Ethnicity | |||||
| Caucasian | 88 (75.9%) | 8 (88.9%) | 25 (75.8%) | 19 (70.4%) | 31 (79.5%) |
| Non-Caucasian | 28 (24.1%) | 1 (11.1%) | 8 (24.2%) | 8 (29.6%) | 8 (20.5%) |
| Cause of kidney failure | |||||
| Diabetic Nephropathy | 51 (44.0%) | 5 (55.6%) | 15 (45.5%) | 7 (25.9%) | 21 (53.9%) |
| Hypertension | 15 (12.9%) | 2 (22.2%) | 3 (9.1%) | 5 (18.5%) | 4 (10.3%) |
| Glomerulonephritis | 26 (22.4%) | 2 (22.2%) | 7 (21.2%) | 7 (25.9%) | 8 (20.5%) |
| Polycystic kidney disease | 3 (2.6%) | 0 (0.0%) | 2 (6.1%) | 1 (3.7%) | 0 (0.0%) |
| Other | 21 (18.1%) | 0 (0.0%) | 6 (18.2%) | 7 (25.9%) | 6 (15.4%) |
| History of: | |||||
| CAD or PVD | 69 (59.5%) | 7 (77.8%) | 18 (54.5%) | 10 (37.0%) | 29 (74.4%) |
| CAD | 51 (44.0%) | 3 (33.3%) | 13 (39.4%) | 8 (29.6%) | 19 (48.7%) |
| PVD | 42 (36.2%) | 6 (66.7%) | 10 (30.3%) | 8 (29.6%) | 15 (38.5%) |
| Stroke | 13 (11.2%) | 1 (11.1%) | 6 (18.2%) | 2 (7.4%) | 3 (7.7%) |
| Diabetes | 60 (51.7%) | 4 (44.4%) | 20 (60.6%) | 10 (37.0%) | 23 (59.0%) |
| Dialysis prescription at baseline: | |||||
| Number of scheduled HD treatments | |||||
| Two/wk | 2 (1.7%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) |
| Three/wk | 88 (75.9%) | 9 (100.0%) | 21 (63.6%) | 23 (85.2%) | 32 (82.1%) |
| Four/wk | 10 (8.6%) | 0 (0.0%) | 5 (15.2%) | 1 (3.7%) | 4 (10.3%) |
| Five/wk | 5 (4.3%) | 0 (0.0%) | 4 (12.1%) | 1 (3.7%) | 0 (0.0%) |
| Six/wk | 11 (9.5%) | 0 (0.0%) | 3 (9.1%) | 2 (7.4%) | 3 (7.7%) |
| Length of treatment (hours) | 4 (3.5-4) | 4 (3.5-4) | 4 (3.5-4) | 4 (3.5-4) | 3.5 (3.5-4) |
| Dialysate composition | |||||
| Sodium (mmol/L) | 142 (140-142) | 142 (140-142) | 140 (138-142) | 142 (141-142) | 142 (138-142) |
| Calcium (mmol/L) | 1.3 (1.3-1.3) | 1.3 (1.3-1.3) | 1.3 (1.3-1.3) | 1.3 (1.3-1.3) | 1.3 (1.3-1.3) |
| Potassium (mmol/L) | 2.3 (2-3) | 2.3 (2-3) | 2.3 (2-3) | 2.3 (2-3) | 2.3 (2-3) |
| Glucose (mmol/L) | 11.1 (11.1-11.1) | 11.1 (8.3-11.1) | 11.1 (8.3-11.1) | 11.1 (11.1-11.1) | 11.1 (11.1-11.1) |
| Sodium profile | 11 (9.5%) | 0 (0%) | 3 (9.1%) | 2 (7.4%) | 6 (15.4%) |
| Ultrafiltration profile | 18 (15.5%) | 1 (11.1%) | 4 (12.1%) | 5 (18.5%) | 8 (20.5%) |
| Dialysate temperature (°C) | 36.5 (36.1-36.5) | 36.5 (36.1-36.5) | 36.3 (36-36.5) | 36.5 (36.5-36.5) | 36.5 (36.5-36.5) |
| Center | |||||
| Hamilton | 77 (66.4%) | 6 (66.7%) | 18 (54.6%) | 20 (74.1%) | 27 (69.2%) |
| Calgary | 39 (33.6%) | 3 (33.3%) | 15 (45.5%) | 7 (25.9%) | 12 (30.8%) |
Note. CAD = coronary artery disease; HD = hemodialysis; PVD = peripheral vascular disease.