Table 1.
Descriptive characteristics based on the presence of pruritus
| Characteristic | Pruritus present | Pruritus not present | P value |
|---|---|---|---|
| Subjects | 133 (53.4) | 116 (46.6) | |
| Age (yr) | 62.54 ± 12.77 | 62.46 ± 14.31 | 0.718 |
| Gender | 0.764 | ||
| Male | 72 (54.1) | 65 (56.0) | |
| Female | 61 (45.9) | 51 (44.0) | |
| Duration of dialysis (mo) | 61.35 ± 43.30 | 66.28 ± 52.81 | 0.712 |
| IDWG (kg)* | 2.35 ± 0.83 | 2.22 ± 0.90 | 0.219 |
| Chronic renal failure cause | 0.732 | ||
| Diabetes | 34 (25.6) | 30 (25.9) | |
| Hypertension | 36 (27.1) | 31 (26.7) | |
| Glomerulonephritis | 12 (9.0) | 7 (6.0) | |
| Unknown | 37 (27.8) | 30 (25.9) | |
| Other† | 14 (10.5) | 18 (15.5) | |
| Diabetes | 0.430 | ||
| Yes | 57 (42.9) | 44 (37.9) | |
| No | 76 (57.1) | 72 (62.1) | |
| Hypertension | 0.401 | ||
| Yes | 56 (42.1) | 55 (47.4) | |
| No | 77 (57.9) | 61 (52.6) | |
| Treatment with erythropoietin | 0.251 | ||
| Yes | 42 (31.6) | 29 (25.0) | |
| No | 91 (68.4) | 87 (75.0) | |
| Cardiovascular disease | 0.031 | ||
| Yes‡ | 27 (20.3) | 12 (10.3) | |
| No | 106 (79.7) | 104 (89.7) | |
| Lung disease | 0.510 | ||
| Yes§ | 4 (3.0) | 2 (1.7) | |
| No | 129 (97.0) | 114 (98.3) | |
| Use of high-flux dialyzer | |||
| Yes (synthetic) | 30 (22.6) | 36 (31.0) | 0.131 |
| No (polysulfone) | 103 (77.4) | 80 (69.0) | |
| Hospital Anxiety Score | 0.043 | ||
| Low (0–10) | 104 (78.2) | 102 (87.9) | |
| High (11–21) | 29 (21.8) | 14 (12.1) | |
| Hospital Depression Score | 0.160 | ||
| Low (0–7) | 30 (22.6) | 18 (15.5) | |
| High (8–21) | 103 (77.4) | 98 (84.5) | |
| Skin type | 0.239 | ||
| Normal | 73 (54.9) | 55 (47.4) | |
| Dry | 60 (45.1) | 61 (52.6) |
Data are represented as means ± standard deviation or number (%).
IDWG, interdialytic weight gain.
*
IDWG was calculated as the difference between the predialytic weight and the weight at the end of the previous dialysis session.
†
Drug intoxication, polycystic kidney, pyelonephritis, renal artery stenosis, post-surgery, urinary tract infection.
‡
Ischemic heart disease, hearth failure, atrial fibrillation, coronary artery disease, valve disease, atherosclerosis.
§
Chronic obstructive pulmonary disease, asthma.
P values were calculated using the Pearson chi-square test for categorical data and Mann–Whitney U test for continuous data.