Table 5.
Subanalysis of the very elderly group, ≥85 years
| Variable | DRT >12 h | Total Fatigue Score ≥4 | ||||
|---|---|---|---|---|---|---|
| OR | 95% CI | P Value | OR | 95% CI | P Value | |
| Sex. ref. male | 0.42 | 0.12 to 1.41 | 0.160 | 1.31 | 0.45 to 3.84 | 0.620 |
| Dialysis vintage | 0.99 | 0.99 to 1.01 | 0.775 | 0.99 | 0.98 to 1.01 | 0.696 |
| Catheter use | 1.14 | 0.25 to 5.23 | 0.863 | 0.61 | 0.15 to 2.59 | 0.508 |
| Hemodiafiltration ref. conventional hemodialysis | 4.2 | 1.04 to 17.03 | 0.045 | 1.57 | 0.53 to 4.69 | 0.419 |
| Intradialytic change in serum sodium | 0.96 | 0.79 to 1.17 | 0.676 | 1.17 | 0.96 to 1.43 | 0.125 |
| Dialysate sodium | 0.91 | 0.72 to 1.16 | 0.464 | 0.98 | 0.78 to 1.22 | 0.835 |
| Duration of session | 1.01 | 0.99 to 1.04 | 0.287 | 0.99 | 0.97 to 1.02 | 0.715 |
| Intradialytic body weight loss | 1.05 | 0.58 to 1.91 | 0.866 | 0.92 | 0.52 to 1.59 | 0.753 |
| Hemoglobin level | 0.97 | 0.55 to 1.72 | 0.926 | 0.51 | 0.28 to 0.93 | 0.029 |
Univariate logistic regression analysis of factors was performed for both dependent variables. In a model 1 adjusting for intradialytic body weight loss, hemodiafiltration was associated with dialysis recovery time (odds ratio=4.1; 95% confidence interval, 0.99 to 17.13; P = 0.05). In a model 2 adjusting for body mass index, hemodiafiltration was less associated with dialysis recovery time (odds ratio=3.9; 95% confidence interval, 0.96 to 15.9; P = 0.058). 95% CI, 95% confidence interval; DRT, dialysis recovery time; OR, odds ratio.
Fifty-five patients were age 85 years and above.