TABLE 1.
Baseline characteristics of the different red blood cell distribution width (RDW) groups of hypertensive inpatients
| Lowest (n=30) | Low (n=41) | High (n=36) | Highest (n=49) | P | |
|---|---|---|---|---|---|
| RDW, % | 11.02±0.48 | 12.04±0.15 | 13.06±0.16 | 15.00±1.14 | |
|
Demographic characteristics and comorbidity | |||||
| Age, years | 77±9.59 | 74±10.24 | 72±11.54 | 74±9.84 | 0.282 |
| Women, n | 4 | 4 | 6 | 6 | 0.000 |
| History of hypertension, years | 12.2±12.4 | 19.1±18.1 | 11.4±10.3 | 13.7±13.0 | 0.210 |
| Coronary artery disease, n | 7 | 17 | 11 | 11 | 0.000 |
| IMT/ID, × 10−2 | 6.70±4.17 | 7.76±3.12 | 8.56±2.83 | 10.96±1.83 | 0.000 |
| Carotid plaque, n | 13 | 19 | 17 | 27 | 0.000 |
|
Medication use, n | |||||
| Simvastatin | 9 | 14 | 15 | 21 | 0.000 |
| Beta-adrenergic blocker | 5 | 10 | 8 | 10 | 0.000 |
| Angiotensin-converting enzyme inhibitor | 12 | 21 | 19 | 25 | 0.000 |
| Calcium channel blocker | 25 | 34 | 33 | 41 | 0.000 |
| Thiazide diuretic | 18 | 28 | 24 | 38 | 0.000 |
|
Lipid status, mmol/L | |||||
| Total cholesterol | 4.24±1.06 | 4.50±0.83 | 4.32±1.01 | 4.43±0.88 | 0.658 |
| LDL cholesterol | 3.21±0.63 | 3.47±0.87 | 3.37±1.11 | 3.51±0.93 | 0.714 |
| HDL cholesterol | 1.12±0.36 | 1.10±0.23 | 1.11±0.33 | 1.11±0.27 | 0.999 |
| Triglycerides | 1.51±1.01 | 1.37±0.72 | 1.41±1.03 | 1.44±1.09 | 0.938 |
|
Blood pressure, mmHg | |||||
| Systolic | 133±15.66 | 133±18.04 | 131±17.90 | 140±18.60 | 0.071 |
| Diastolic | 72±10.06 | 72±8.80 | 75±17.53 | 78±10.59 | 0.087 |
|
Laboratory parameters | |||||
| Hemoglobin, g/L | 13.25±0.34 | 13.00±0.22 | 12.86±0.47 | 12.81±1.19 | 0.056 |
| White blood cell count, × 109/L | 5.90±1.41 | 6.16±1.69 | 6.23±0.97 | 7.56±1.20 | 0.000 |
Data are presented as mean ± SD unless otherwise indicated. HDL High-density lipoprotein; IMT/ID Ratio of intimal-medial thickness to inner diameter; LDL Low-density lipoprotein