Table 2 Laboratory findings by quartiles of RDW
Group I | Group II | Group III | Group IV | P value | |
|---|---|---|---|---|---|
N = 607 | N = 574 | N = 663 | N = 706 | ||
<13.1% | 13.1 ≥ and <13.6% | 13.6% ≥ and <14.1% | ≥14.1 % | ||
RBC (mln/mm3) | 4.5 ± 0.4 | 4.5 ± 0.5 | 4.5 ± 0.5 | 4.5 ± 0.5 | 0.02 |
HGB (mmol/l) | 8.7 ± 0.8 | 8.6 ± 0.9 | 8.6 ± 0.8 | 8.3 ± 1.0 | <0.0001 |
HCT (%) | 40.4 ± 3.4 | 40.6 ± 4.3 | 40.8 ± 3.8 | 39.8 ± 4.4 | <0.0001 |
MCV (mm3) | 90.6 ± 3.9 | 89.0 ± 3.8 | 90.5 ± 4.3 | 89.9 ± 5.6 | 0.01 |
RDW (%) | 12.6 ± 0.4 | 13.3 ± 0.1 | 13.8 ± 0.2 | 15.0 ± 1.2 | <0.0001 |
WBC (tys/mm3) | 7.1 ± 1.9 | 7.3 ± 2.0 | 7.4 ± 2.6 | 7.4 ± 2.2 | 0.17 |
PLT (tys/mm3) | 211.3 ± 51.3 | 210.0 ± 59.4 | 207.4 ± 60.6 | 213.3 ± 73.7 | 0.19 |
Creatinine (μmol/l) | 79.8 ± 32.6 | 80,3 ± 22.8 | 83,2 ± 24.7 | 89,8 ± 48.1 | <0.0001 |
GFR (ml/min/1.73 m2) | 90.0 ± 21.9 | 89.4 ± 25.5 | 85.5 ± 24.2 | 82,4 ± 26.5 | <0.0001 |
Sodium (mmol/l) | 138.5 ± 2.6 | 138.3 ± 2.8 | 138.7 ± 2.64 | 138.5 ± 2.8 | 0.09 |
Glucose (mmol/l) | 6.2 ± 2.0 | 6.1 ± 2.0 | 6.0 ± 1.6 | 5.9 ± 1.7 | 0.18 |
Cholesterol (mmol/l) | 4.3 ± 1.1 | 4.5 ± 1.2 | 4.4 ± 1.1 | 4.5 ± 1.3 | 0.08 |