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Table 1 Index admission and patient characteristics of a cohort of prevalent hemodialysis patients admitted at least once while on hemodialysis treatment at Emory or Wake Forest between January 2010 and July 2015, by no, pulmonary edema-related, and other 30-day readmission status

From: Post-hospitalization dialysis facility processes of care and hospital readmissions among hemodialysis patients: a retrospective cohort study

Characteristic Overall 30-day readmission status P*
None Pulmonary edema-related readmission Any other readmission
N 1056 869 (82.3%) 84 (8.0%) 103 (9.8%)
Index admission** characteristic
 Median length of stay (IQR), days 4 (2–7) 4 (2–7) 4 (2–7) 5 (2–8) 0.48
 Pulmonary edema-related (%) 38.8% 37.7% 76.2 17.5% < 0.001
 Intensive care utilization (%) 23.9% 24.3% 20.2% 23.3% 0.74
Patient demographics
 Mean (SD) age, years 60.5 (15.0) 60.4 (14.9) 62.4 (15.4) 58.5 (15.3) 0.20
 Female (%) 47.8% 47.2% 50.0% 51.5% 0.65
 Race/ethnicity (%)      0.14
  Non-Hispanic white 33.9% 33.0% 45.2% 32.4%  
  Non-Hispanic black 63.5% 64.2% 54.8% 64.7%  
  Hispanic or other 2.6% 2.8% 0.0% 2.9%  
Patient clinical factors
 Median (IQR) dialysis vintage, years 1.0 (0.3–3.9) 1.1 (0.3–3.8) 1.0 (0.3–4.0) 0.7 (0.2–4.5) 0.30
 History of dialysis non-adherence 3.4% 2.6% 7.1% 5.8% 0.02
 Primary assigned cause of ESRD (%)      > 0.9
  Diabetes 40.9% 41.2% 38.1% 39.8%  
  Hypertension 27.6% 27.3% 29.8% 28.2%  
  Glomerulonephritis 11.4% 11.3% 13.1% 10.7%  
  Other 20.2% 20.2% 19.1% 21.4%  
 Comorbid conditions (%):
  Diabetes 59.8% 60.3% 54.8% 60.2% 0.62
  Ischemic heart disease 27.3% 27.1% 34.5% 23.3% 0.22
  Hypertension 98.9% 98.8% 98.8% 100% 0.71
  Congestive heart failure 42.4% 40.8% 73.8% 28.2% < 0.001
  1. BMI body mass index, COPD chronic obstructive pulmonary disease, ESRD end-stage renal disease, IQR interquartile range. N = 1056 overall, except for race/ethnicity (N = 1050), assigned cause of ESRD (N = 1055)
  2. *By ANOVA, equality-of-medians, or Fisher’s exact test, as appropriate