Table 2. Spearman's correlation between RDW and echocardiographic and laboratory parameters.
| Laboratory and echocardiographic variables | RDW | |
|---|---|---|
| ρ (correlation coefficient) | p Value | |
| Hemoglobin | 0.218 | 0.23 |
| Hematocrit | 0.201 | 0.27 |
| BNP | 0.295 | 0.15 |
| TAPSE | -0.390 | 0.02 |
| TRV | 0.162 | 0.36 |
| PASP | 0.160 | 0.37 |
| FAC | -0.032 | 0.86 |
| S′ | -0.091 | 0.61 |
| TAPSE/PASP | -0.393 | 0.021 |
| RA area | -0.054 | 0.78 |
| RA pressure | 0.167 | 0.35 |
| RA strain | -0.025 | 0.89 |
| RV diameter | 0.001 | 0.99 |
| RV strain | -0.290 | 0.09 |
RDW: red cell distribution width; BNP: brain natriuretic peptide; TAPSE: tricuspid annular plane systolic excursion; TRV: tricuspid regurgitation velocity; PASP: pulmonary artery systolic pressure; FAC: fractional area change; S′: tricuspid annular peak systolic velocity; RA: right atrium; RV: right ventricle.