Demographics | < 65 years | 65–74 years | ≥ 75 years | |
---|---|---|---|---|
(n = 328) | (n = 212) | (n = 174) | p value | |
Age (years) | 51.9 ± 9.8 | 70.3 ± 2.8 | 79.4 ± 3.3 | |
Sex (% male) | 60% | 63% | 66% | 0.41 |
High educational statusa | 22% | 17% | 22% | 0.30 |
Vascular access | ||||
arteriovenous fistula | 84% | 78% | 72% | 0.01 |
graft | 11% | 12% | 20% | 0.03 |
central venous catheter | 5% | 9% | 8% | 0.16 |
Diastolic blood pressure (mmHg)b | 80 ± 11 | 73 ± 12 | 70 ± 11 | <0.001 |
Systolic blood pressure (mmHg)b | 148 ± 21 | 148 ± 20 | 147 ± 24 | <0.001 |
Time on RRT (years) | 3.1 ± 3.2 | 2.8 ± 2.6 | 2.7 ± 2.3 | 0.16 |
Dialysis frequency 3×/week | 95% | 93% | 91% | 0.17 |
Session time (hours) | 3.8 ± 0.4 | 3.8 ± 0.3 | 3.7 ± 0.4 | 0.02 |
Residual renal functionc | 48% | 54% | 60% | 0.04 |
Body mass index (kg/m2) | 25.2 ± 5.1 | 25.8 ± 4.59 | 25.3 ± 4.4 | 0.30 |
Current smoker | 26% | 16% | 10% | <0.001 |
Diabetes Mellitus | 24% | 29% | 21% | 0.24 |
Cardiovascular disease | 31% | 52% | 59% | <0.001 |
Kt/v urea | 1.40 ± 0.22 | 1.40 ± 0.21 | 1.38 ± 0.21 | 0.62 |
Hemoglobin (mmol/L1) | 7.3 ± 0.8 | 7.3 ± 0.8 | 7.4 ± 0.7 | 0.46 |
Albumin (g/L) | 41.0 ± 3.9 | 40.2 ± 3.8 | 39.4 ± 3.5 | <0.001 |
Phosphate (mmol/L) | 1.74 ± 0.52 | 1.59 ± 0.47 | 1.51 ± 0.43 | <0.001 |
Health related QoL domains | ||||
Physical functioning | 60 ± 27 | 48 ± 28 | 40 ± 28 | < 0.001 |
Role physical | 47 ± 43 | 41 ± 44 | 39 ± 44 | 0.10 |
General health | 43 ± 21 | 44 ± 21 | 44 ± 19 | 0.26 |
Bodily pain | 73 ± 26 | 69 ± 28 | 70 ± 28 | 0.44 |
Emotional health | 71 ± 20 | 73 ± 21 | 77 ± 18 | 0.02 |
Role emotional | 68 ± 43 | 65 ± 44 | 68 ± 43 | 0.63 |
Social functioning | 68 ± 27 | 69 ± 29 | 67 ± 28 | 0.78 |
Vitality | 54 ± 21 | 53 ± 23 | 53 ± 21 | 0.99 |