Table 1 Demographic characteristics of the study population
Factor | All | Patients with postdialytic SBP rise > 5 mmHg | Patients with postdialytic SBP change between -5 to 5 mmHg | Patients with postdialytic SBP drop > 5 mmHg | p Value |
|---|---|---|---|---|---|
Patient number | 115 | 39 | 27 | 49 | Â |
Age (year) | 64.0 ± 13.6 | 68.6 ± 11.5 | 65.1 ± 16.0 | 59.6 ± 12.6 | 0.007* |
Male gender (%) | 45.2 | 41.0 | 33.3 | 55.1 | 0.153 |
Dialysis duration (year) | 5.8 ± 5.3 | 4.5 ± 5.3 | 6.8 ± 6.1 | 6.2 ± 4.7 | 0.180 |
Body mass index (Kg/m2) | 22.0 ± 3.5 | 21.7 ± 3.4 | 21.9 ± 3.6 | 22.2 ± 3.5 | 0.840 |
Smoking index | 0.46 ± 0.74 | 0.46 ± 0.79 | 0.41 ± 0.69 | 0.49 ± 0.74 | 0.900 |
Kt/V | 1.60 ± 0.26 | 1.61 ± 0.22 | 1.62 ± 0.22 | 1.59 ± 0.31 | 0.873 |
Comorbidities (%) | Â | Â | Â | Â | Â |
   Diabetes mellitus (%) | 40.0 | 43.6 | 37.0 | 38.8 | 0.844 |
   Hypertension (%) | 91.3 | 89.7 | 92.6 | 91.8 | 1.000 |
   Cardiovascular disease (%) | 26.1 | 30.8 | 29.6 | 20.4 | 0.487 |
   Prior stroke (%) | 4.3 | 7.7 | 0.0 | 4.1 | 0.365 |
   Malignancy (%) | 7.8 | 15.4 | 3.7 | 4.1 | 0.136 |
Medications | Â | Â | Â | Â | Â |
   ACE inhibitor/ARB (%) | 47.0 | 53.8 | 44.4 | 42.9 | 0.565 |
   Antihypertensive agents (%) | 79.1 | 89.7 | 85.2 | 67.3 | 0.025* |
   Antiplatelet agents (%) | 33.0 | 41.0 | 33.3 | 26.5 | 0.356 |
   Statins (%) | 35.7 | 33.3 | 37.0 | 36.7 | 0.933 |
   Fibrates (%) | 7.0 | 10.3 | 3.7 | 6.1 | 0.719 |
   Vitamin D3 (%) | 19.1 | 15.4 | 18.5 | 22.4 | 0.702 |
Hepatitis B infection (%) | 7.8 | 7.7 | 0.0 | 12.2 | 0.172 |
Hepatitis C infection (%) | 18.3 | 12.8 | 25.9 | 18.4 | 0.409 |
Laboratory data | Â | Â | Â | Â | Â |
   Albumin (g/dL) | 4.1 ± 0.3 | 4.1 ± 0.3 | 4.2 ± 0.3 | 4.2 ± 0.3 | 0.224 |
   Total cholesterol (mg/dL) | 173.5 ± 36.1 | 175.4 ± 35.0 | 171.1 ± 31.4 | 173.4 ± 39.9 | 0.895 |
   Triglycerides (mg/dL) | 182.9 ± 125.2 | 166.6 ± 113.1 | 190.8 ± 145.1 | 191.4 ± 123.9 | 0.614 |
   Sodium (mmol/L) | 139.8 ± 2.9 | 139.4 ± 2.9 | 139.9 ± 3.5 | 140.0 ± 3.1 | 0.693 |
   Chloride (mmol/L) | 99.7 ± 2.5 | 100.1 ± 2.3 | 100.0 ± 2.6 | 99.1 ± 2.6 | 0.148 |
   Bicarbonate (mmol/L) | 24.0 ± 2.5 | 24.1 ± 2.5 | 23.7 ± 2.3 | 24.1 ± 2.6 | 0.770 |
   ALT (U/L) | 20.4 ± 12.5 | 20.5 ± 12.1 | 23.0 ± 18.4 | 18.8 ± 8.0 | 0.460 |
   Alk-P (mg/dL) | 113.9 ± 61.5 | 117.3 ± 79.3 | 103.0 ± 42.4 | 117.1 ± 54.2 | 0.578 |
   Fasting glucose (mg/dL) | 139.7 ± 66.6 | 143.3 ± 57.0 | 140.2 ± 75.8 | 136.4 ± 69.6 | 0.890 |
   HbA1c (%) | 6.2 ± 1.5 | 6.0 ± 1.1 | 6.0 ± 1.6 | 6.3 ± 1.8 | 0.573 |
   WBC count (1000 per cumm) | 6.3 ± 1.8 | 6.2 ± 1.6 | 6.4 ± 1.6 | 6.5 ± 2.0 | 0.741 |
   Hemoglobin (g/dL) | 10.1 ± 1.3 | 9.7 ± 1.0 | 10.2 ± 1.6 | 10.3 ± 1.4 | 0.077 |
   High-sensitive CRP (mg/dL) | 0.514 ± 0.706 | 0.573 ± 0.662 | 0.343 ± 0.305 | 0.562 ± 0.875 | 0.357 |
   Ferritin (ng/mL) | 510.3 ± 570.7 | 508.5 ± 541.1 | 595.1 ± 944.2 | 464.9 ± 229.4 | 0.723 |
   Transferrin saturation (%) | 26.3 ± 11.7 | 24.8 ± 10.8 | 29.9 ± 15.7 | 25.4 ± 9.5 | 0.178 |
Peridialytic blood pressure | Â | Â | Â | Â | Â |
   predialytic SBP (mmHg) | 143.1 ± 15.5 | 138.1 ± 16.6 | 141.5 ± 13.8 | 147.9 ± 14.3 | 0.009* |
   postdialytic SBP (mmHg) | 143.1 ± 17.1 | 152.6 ± 19.2 | 142.7 ± 14.5 | 135.7 ± 12.6 | < 0.001* |
   predialytic DBP (mmHg) | 78.2 ± 6.8 | 74.9 ± 6.9 | 77.9 ± 5.8 | 81..0 ± 6.1 | < 0.001* |
   postdialytic DBP (mmHg) | 79.1 ± 6.2 | 80.0 ± 6.8 | 79.6 ± 6.6 | 78.2 ± 5.4 | 0.345 |
   predialytic MAP (mmHg) | 99.8 ± 9.1 | 96.0 ± 9.6 | 99.1 ± 7.7 | 103.3 ± 8.1 | 0.001* |
   postdialytic MAP (mmHg) | 100.5 ± 9.0 | 104.2 ± 10.1 | 100.6 ± 8.4 | 97.3 ± 7.2 | 0.001* |
   predialytic PP (mmHg) | 64.9 ± 11.4 | 63.2 ± 11.8 | 63.6 ± 11.1 | 67.0 ± 11.1 | 0.238 |
   Postdialytic PP (mmHg) | 64.0 ± 13.8 | 72.6 ± 15.2 | 63.2 ± 11.4 | 57.5 ± 9.8 | < 0.001* |
Ultrafiltration volume (Kg) | 2.4 ± 0.8 | 2.1 ± 0.5 | 2.3 ± 0.9 | 2.6 ± 0.8 | 0.006* |
CT ratio > 50% (%) | 68.7 | 89.7 | 63.0 | 55.1 | 0.002* |