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Table 1 Comparison of sample characteristics according to the distance between the patients’ residence and the dialysis unit

From: Distance between residence and the dialysis unit does not impact self-perceived outcomes in hemodialysis patients

Variables All sample Living in Sobral Distance ≤ 100 km Distance > 100 km P
Gender
Male 98 (60.9) 24 (51.1) 28 (60.9) 46 (67.6)  
Female 63 (39.1) 23 (48.9) 18 (39.1) 22 (32.4) 0.211
Age 44.5 46.1 44.5 43.4 0.794
Economic class a
B 7 (4.3) 2 (4.3) 3 (6.5) 2 (2.9) 0.156
C 38 (23.6) 15 (31.9) 11 (23.9) 12 (17.6)  
D 94 (58.4) 28 (59.6) 26 (56.5) 40 (58.8)  
E 22 (13.7) 2 (4.3) 6 (13.0) 14 (20.6)  
Etiology
Glomerulonephritis 69 (42.9) 19 (40.4) 20 (43.5) 30 (44.1) 0.919
Hypertension 38 (23.6) 9 (19.1) 11 (23.9) 18 (26.5) 0.670
Diabetes 16 (9.9) 9 (19.1) 3 (6.5) 4 (5.9) 0.056
Policystic kidney 11 (6.8) 1 (2.1) 5 (10.0) 5 (7.4) 0.233
Obstructive 7 (4.3) 3 (6.4) 1 (2.2) 3 (4.4) 0.642
Lupus 4 (2.5) 1 (2.1) 1 (2.2) 2 (2.9) 1.000
Indeterminate 16 (10) 5 (10.6) 5 (10.9) 6 (8.8) 1.000
Time on dialysis (months) 53.8 56.8 63.6 47.1 0.080
Co morbidity b
Low 126 (78.3) 34 (72.3) 35 (76.1) 57 (83.8) 0.549
Medium 28 (17.4) 11 (23.4) 8 (17.4) 9 (13.2)  
High 7 (4.3) 2 (4.3) 3 (6.5) 2 (2.9)  
Depression
Yes 13 (8.1) 6 (12.8) 2 (4.3) 5 (7.4) 0.330
No 148 (91.9) 41 (87.2) 44 (95.7) 63 (92.6)  
Laboratory
Creatinine (mg/dl) 12.6 12.9 12.9 12.2 0.599
Hemoglobin (g/dl) 8.5 8.6 8.5 8.4 0.791
Albumin (g/dl) 4.3 4.3 4.3 4.3 0.807
Calcium-phosphorus
product (mg2/dl2) 46.6 47.4 49.2 46.6 0.101
Kt/V 1.5 1.5 1.5 1.6 0.749
  1. Data are means for continuous variables and percentages in parentheses.
  2. aBrazilian Association of Research Institutes, B (best) and E (worst).
  3. bKhan index.