Table 2.
Factors associated with the overhydration in patients on hemodialysis.
| Variables | Simple linear regression analysis correlation coefficient (r) | P-value | Stepwise multiple linear regression analysis standardized coefficient (ß)a | P-value |
|---|---|---|---|---|
| NT-pro BNP (Lg-transformed) | 0.467 | <0.001 | 0.217 | 0.032 |
| Sex | −0.221 | 0.012 | ||
| Age (years) | 0.145 | 0.100 | 0.249 | 0.012 |
| Height (cm) | 0.294 | 0.001 | 0.309 | 0.008 |
| Weight (kg) | 0.206 | 0.019 | ||
| MAP (mmHg) | 0.338 | <0.001 | 0.196 | 0.031 |
| Hb (g/L) | −0.327 | <0.001 | −0.243 | 0.007 |
| Alb (g/L) | −0.186 | 0.047 | ||
| SCr (μmol/L) | −0.190 | 0.042 | ||
| LVMI (g/m2) | 0.219 | 0.016 | 0.232 | 0.017 |
| LVEF (%) | −0.242 | 0.008 |
NT-pro BNP, N-terminal pro B-type natriuretic peptide; SBP, systolic blood pressure; DBP, diastolic blood pressure; MAP, mean arterial pressure; Hb, hemoglobin; Alb, albumin; Scr, serum creatinine; LVMI, left ventricular mass index; LVEF, left ventricular ejection fraction.
a
In the stepwise multiple regression model, the overhydration value is the dependent variable. Adjusted R2 = 0.505. Sex, weight, albumin, Scr, and LVEF were removed by stepwise elimination.