Table 1.
Baseline demographic, clinical and laboratory characteristics of study groups.
| Non-dipper (n=289) | Dipper (n=255) | Normotensive (n=306) | p value | |
|---|---|---|---|---|
| Gender (male) n, (%) | 125 (50.8) | 117 (46.8) | 187 (45.5) | 0.411 |
| Age, years | 54±12 | 53±12 | 52±13 | 0.690 |
| BMI, kg/m2 | 31±4 | 30±5 | 27±8 | 0.330 |
| Glucose, mg/dl | 103±14 | 101±11 | 98±15 | 0.210 |
| Creatinine, mg/dl | 0.8±0.2 | 0.8±0.2 | 0.8±02 | 0.109 |
| Total-cholesterol, mg/dl | 206±45 | 205±43 | 203±41 | 0.789 |
| LDL, mg/dl | 135±33 | 132±35 | 132±35 | 0.710 |
| HDL-cholesterol, mg/dl | 46±12 | 47±12 | 49±14 | 0.067 |
| Triglycerides, mg/dl | 153±61 | 154±73 | 152±79 | 0.930 |
| ACE inh.use, (%) | 20.5 | 23.4 | 0.74 | |
| ARB use, (%) | 14.7 | 16 | 0.540 | |
| Beta-blocker use, (%) | 11.7 | 9 | 0.350 | |
| CCB use, (%) | 17.6 | 11.8 | 0.103 | |
| Diuretic use, (%) | 18.6 | 21.4 | 0.820 | |
| MPV, fl | 8.4±1 | 8.3±1 | 8.1±0.6 | <0.001* |
| Platelet count, 103/μl | 254±65 | 266±72 | 275±65 | <0.001** |
| LVMI, g/m2 | 94±25 | 92±25 | 86±27 | 0.009** |
ACE – angiotensin-converting enzyme; ARB – angiotensin receptor blocker; BMI – body mass index; CCB – Ca-channel blocker; DBP – diastolic blood pressure; HDL – high-density lipoprotein; LDL – low-density lipoprotein; LVMI – left ventricular mass index; MPV – mean platelet volume; SBP – systolic blood pressure.
*
p<0.01 both non-dippers and dippers vs. nornotensive;
**
p<0.01 non-dippers vs. normotensive.