Table 3.
Overview of different models for estimation of reference overhydration (OHREF)
| Model | Adj. R² | AIC | Variables | Predictor importance |
|---|---|---|---|---|
| 1. OHBIA | 0.03 | 16.5 | OHBIA | 1.0 |
| 2. ECW/BSA | 0.22 | 8.0 | ECW/BSA | 1.0 |
| 3. OHCLI | 0.35 | 2.7 | OHCLI | 1.0 |
| 4. Parameters | 0.51 | 1.0 | Age | 0.11 |
| Pre-HD weight | 0.21 | |||
| Pre-HD MAP | 0.09 | |||
| Pre-HD DBP | 0.19 | |||
| VCCI | 0.39 | |||
| 5. Parameters + ECW/BSA | 0.49 | 4.3 | Age | 0.13 |
| Pre-HD weight | 0.13 | |||
| Pre-HD MAP | 0.11 | |||
| Pre-HD DBP | 0.22 | |||
| VCCI | 0.40 | |||
| ECW/BSA | 0.01 | |||
| 6. Parameters + ICW/BSA | 0.55 | −0.6 | Age | 0.09 |
| Pre-HD weight | 0.23 | |||
| Pre-HD MAP | 0.11 | |||
| Pre-HD DBP | 0.21 | |||
| VCCI | 0.25 | |||
| ICW/BSA | 0.11 | |||
| 7. Parameters + OHCLI | 0.64 | −5.9 | Age | 0.19 |
| Pre-HD weight | 0.01 | |||
| Pre-HD MAP | 0.07 | |||
| Pre-HD DBP | 0.13 | |||
| VCCI | 0.24 | |||
| OHCLI | 0.36 | |||
| 8. Parameters + OHCLI + ECW/BSA | 0.62 | −2.5 | Age | 0.20 |
| Pre-HD weight | 0.00 | |||
| Pre-HD MAP | 0.08 | |||
| Pre-HD DBP | 0.12 | |||
| VCCI | 0.20 | |||
| OHCLI | 0.39 | |||
| ECW/BSA | 0.01 | |||
| 9. Parameters + OHCLI + ICW/BSA | 0.70 | −8.7 | Age | 0.15 |
| Pre-HD weight | 0.07 | |||
| Pre-HD MAP | 0.10 | |||
| Pre-HD DBP | 0.17 | |||
| VCCI | 0.18 | |||
| OHCLI | 0.22 | |||
| ICW/BSA | 0.11 |
AIC Akaike’s information criterion, other abbreviations as in Table 2