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Table 1 Baseline characteristics of the cohort

From: Comorbidity burden at dialysis initiation and mortality: A cohort study

Demographics
  Age (mean years ± SD) 62.6 ± 15.1
  Male, n (%) 479 (62.1)
  Caucasian, n (%) 702 (91.1)
Cause of ESRD, n (%)
  Diabetes 235 (30.5)
  Other 158 (20.5)
  Ischemic/Hypertension 138 (17.9)
  Unknown 94 (12.2)
  Glomerulonephritis 86 (11.2)
  Polycystic kidney disease 60 (7.8)
aSelect Comorbidities, n (%)
  Diabetes with complications 286 (37.1)
  Myocardial infarction 236 (30.6)
  Congestive heart failure 172 (22.3)
  Peripheral vascular disease 154 (20.0)
  Chronic lung disease 129 (16.7)
  Cerebrovascular disease 93 (12.1)
  Diabetes without complications 81 (10.5)
  Neoplasia 50 (6.5)
  Peptic ulcer disease 49 (6.4)
Laboratory
  MDRD GFR [median mL/min/1.73 m2 (Q1-Q3)] 8 (6–10)
  Albumin (mean g/dL ± SD) 3.14 ± 0.65
  Phosphate, n = 768 [median mg/dL (Q1-Q3)] 5.9 (5.0-7.4)
  Hemoglobin, n = 770 [median g/dL (Q1-Q3)] 9.7 (8.6-10.9)
Dialysis Access, n (%)
  Hemodialysis with central venous catheter 410 (53.2)
  Hemodialysis with arteriovenous fistula 194 (25.2)
  Peritoneal dialysis 167 (21.7)
End Stage Renal Disease Comorbidity Index, n (%)
  Index score of ≤1 253 (32.8)
  Index score of 2 161 (20.9)
  Index score of 3 62 (8.0)
  Index score of 4 92 (11.9)
  Index score of 5 59 (7.7)
  Index score of ≥6 144 (18.7)
Charlson Comorbidity Index, n (%)
  Index score of ≤1 0 (0)
  Index score of 2 189 (24.6)
  Index score of 3 100 (13.0)
  Index score of 4 152 (19.7)
  Index score of 5 120 (15.6)
  Index score of ≥6 210 (27.2)
  1. aRemaining comorbid conditions comprising the CCI and ESRD-CI (rheumatological, dementia, mild liver disease, moderate/severe liver disease, metastatic disease, leukemia, lymphoma, human immunodeficiency virus) were present in less than 5 % of the dialysis population at dialysis initiation)