Table 4 Multiple (a) and logistic (b) regression analysis of effects on Hb g/dL and the recommended Hb target of 10–12 g/dL
All | Portugal | Poland | |
|---|---|---|---|
(a) Multiple regression analysis of effect of the respective variable on Hb in all patients and in Portugal and Poland, respectively | |||
Beta value (p) | Beta value (p) | Beta value (p) | |
Age | 0.002 (NS) | 0.002 (NS) | 0.006 (NS) |
Gender | −0.166 (0.024) | −0.196 (0.035) | − 0.068 (NS) |
BMI | 0.006 (NS) | −0.007 (NS) | 0.009 (0.029) |
TSAT | 0.008 (0.002) | 0.011 (0.005) | 0.006 (NS) |
Ferritin | −0.0004 (< 0.001) | −0.001 (< 0.001) | 0.0002 (< 0.001) |
Albumin | 0.005 (0.018) | 0.070 (< 0.001) | 0.004 (< 0.001) |
PTH | 0.0003 (< 0.001) | 0.0002 (0.026) | 0.0003 (< 0.001) |
(b) Logistic regression analysis with Hb 10–12 g/dL as effect measure | |||
Odds ratio (p) | Odds ratio (p) | Odds ratio (p) | |
Age (years) | 1.005 (N.S.) | 0.991 (N.S.) | 1.027 (< 0.001) |
Gender (M/F) | 1.267 (N.S.) | 1.337 (N.S.) | 1.098 (N.S.) |
BMI (kg/m2) | 0.995 (N.S.) | 0.987 (N.S.) | 0.988 (N.S.) |
Albumin (> 35 g/dL) | 1.444 (N.S.) | 1.314 (0.042) | 1.498 (N.S.) |
TSAT (20%–50%) | 1.438 (0.008) | 1.314 (N.S.) | 1.498 (N.S.) |
Ferritin (200–800 μg/L) | 1.521 (0.001) | 1.865 (< 0.001) | 1.341 (N.S.) |
PTH (150–600 pg/mL) | 0.921 (N.S.) | 0.967 (N.S.) | 0.806 (N.S.) |