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Table 1 Baseline characteristics according to the number of reviewer confirmed arrythmias during follow-up

From: Relationship between dialytic parameters and reviewer confirmed arrhythmias in hemodialysis patients in the monitoring in dialysis study

Characteristics All Subjects (N = 66) Number of RCA During Follow-up P Value
≤10 (N = 16) 11–49 (N = 16) 50–239 (N = 17) ≥240 (N = 17)
Age (years) 56.3 ± 12.2 61.1 ± 9.1 56.3 ± 12.0 54.1 ± 13.0 54.1 ± 13.7 0.31
Female 20/66 (30.3%) 5/16 (31.3%) 5/16 (31.3%) 5/17 (29.4%) 5/17 (29.4%) > 0.99
Race       0.15
Asian 23/66 (34.8%) 9/16 (56.3%) 7/16 (43.8%) 4/17 (23.5%) 3/17 (17.6%)  
Black 35/66 (53.0%) 7/16 (43.8%) 8/16 (50.0%) 11/17 (64.7%) 9/17 (52.9%)  
Other 1/66 (1.5%) 0/16 (0.0%) 0/16 (0.0%) 0/17 (0.0%) 1/17 (5.9%)  
White 7/66 (10.6%) 0/16 (0.0%) 1/16 (6.3%) 2/17 (11.8%) 4/17 (23.5%)  
Systolic blood pressure 140.8 ± 23.4 140.9 ± 19.9 145.9 ± 23.9 135.8 ± 23.0 140.9 ± 27.0 0.68
Diastolic blood pressure 80 (70, 84) 76 (59, 80) 80 (71, 81) 80 (64, 85) 84 (74, 90) 0.14
Weight (kg) 81.7 (68.2, 95.2) 78.1 (68.8, 91.0) 84.8 (61.7, 89.5) 80.4 (68.9, 119.0) 83.7 (75.8, 108.2) 0.59
BMI ≥ 40 6/66 (9.1%) 1/16 (6.3%) 1/16 (6.3%) 2/17 (11.8%) 2/17 (11.8%) > 0.99
Cause of ESRD
 Diabetes 28/66 (42.4%) 11/16 (68.8%) 6/16 (37.5%) 4/17 (23.5%) 7/17 (41.2%) 0.14
 Glomerulonephritis 6/66 (9.1%) 0/16 (0.0%) 1/16 (6.3%) 4/17 (23.5%) 1/17 (5.9%)  
 Hypertension 25/66 (37.9%) 5/16 (31.3%) 6/16 (37.5%) 8/17 (47.1%) 6/17 (35.3%)  
 Other 10.6% (7/66) 0/16 (0.0%) 3/16 (18.8%) 1/17 (5.9%) 3/17 (17.6%)  
ESRD Vintage (years) 2.4 (1.2, 5.3)
(N = 65)
2.2 (1.2, 4.3)
(N = 16)
2.9 (1.5, 5.5)
(N = 15)
2.5 (1.2, 5.7)
(N = 17)
2.5 (0.7, 5.3)
(N = 17)
0.78
Prior kidney transplant 9/66 (13.6%) 2/16 (12.5%) 4/17 (23.5%) 3/17 (17.6%) 2/16 (12.5%) 0.25
Previous peritoneal dialysis 7/66 (10.6%) 1/16 (6.3%) 2/16 (12.5%) 2/17 (11.8%) 2/17 (11.8%) > 0.99
Vascular Access
 AV Fistula 45/65 (69.2%) 12/16 (75.0%) 12/16 (75.0%) 11/17 (64.7%) 10/16 (62.5%) 0.87
 AV Graft 17/65 (26.2%) 3/16 (18.8%) 3/16 (18.8%) 5/17 (29.4%) 6/16 (37.5%)  
 Catheter 3/65 (4.6%) 1/16 (6.3%) 1/16 (6.3%) 1/17 (5.9%) 0/16 (0.0%)  
Diabetes 42/66 (63.6%) 13/16 (81.3%) 10/16 (62.5%) 8/17 (47.1%) 11/17 (64.7%) 0.25
Hyperlipidemia 40/66 (60.6%) 9/16 (56.3%) 8/16 (50.0%) 11/17 (64.7%) 12/17 (70.6%) 0.66
Hypertension 56/66 (84.8%) 15/16 (93.8%) 13/16 (81.3%) 15/17 (88.2%) 13/17 (76.5%) 0.61
Ischemic heart disease 32/66 (48.5%) 10/16 (62.5%) 8/16 (50.0%) 8/17 (47.1%) 6/17 (35.3%) 0.51
History of MI 6/66 (9.1%) 1/16 (6.3%) 2/16 (12.5%) 1/17 (5.9%) 2/17 (11.8%) 0.95
Congestive heart failure 17/66 (25.8%) 3/16 (18.8%) 3/16 (18.8%) 4/17 (23.5%) 7/17 (41.2%) 0.46
Coronary artery bypass surgery 9/66 (13.6%) 4/16 (25.0%) 3/16 (18.8%) 1/17 (5.9%) 1/17 (5.9%) 0.32
Arrhythmia 21/66 (31.8%) 3/16 (18.8%) 4/16 (25.0%) 7/17 (41.2%) 7/17 (41.2%) 0.42
Smoking       0.45
 Current 5/66 (7.6%) 0/16 (0.0%) 1/16 (6.3%) 3/17 (17.6%) 1/17 (5.9%)  
 Never 46/66 (69.7%) 13/16 (81.3%) 9/16 (56.3%) 11/17 (64.7%) 13/17 (76.5%)  
 Past 15/66 (22.7%) 3/16 (18.8%) 6/16 (37.5%) 3/17 (17.6%) 3/17 (17.6%)  
LVEF 55.0 (55.0, 60.0) (N = 65) 55.0 (55.0, 60.0) (N = 15) 57.8 (55.0, 63.5) (N = 16) 60.0 (55.0, 63.0) (N = 17) 55.0 (55.0, 60.0) (N = 17) 0.65
  1. Basline characteristics in individuals with and without reviewer confirmed arrhythmia (RCA) during follow-up. BMI body mass index, ESRD end stage renal disease, AV arterio-venous, LVEF Left ventricular ejection fraction. Data are mean ± SD, median (IQR), or n/N (%)