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Table 1 Cohort creation and distribution of follow-up time

From: Comparative effectiveness of home dialysis therapies: a matched cohort study

Criterion or variable Daily home HD Home PD
Patients age ≥18 years, n 4509 208,086
Exclusions, n (%)
 Not in the time windowa 1067 (23.7) 119,974 (57.7)
 Nonindependent living 166 (3.7) 4355 (2.1)
 Missing race 0 (0) 47 (0)
 Missing comorbidity 0 (0) 8 (0)
 Missing weight 55 (1.2) 6910 (3.3)
 Albumin <1.0 or Hgb <5 25 (0.6) 754 (0.4)
 Prior transplants >2 3 (0.1) 49 (0)
 Follow-up <30 days 51 (1.1) 1067 (0.5)
 Total excluded 1367 (30.3) 133,164 (64.0)
Eligible, n (%) 3142 (69.7) 74,922 (36.0)
Matched,b n (%) 2668 (80.0) 2668 (3.6)
Follow-up time (years)
 Mean (SD) 1.9 (1.3) 2.0 (1.4)
 Median (IQR) 1.7 (0.8–2.8) 1.7 (0.9–2.9)
 Range 0.1–6.5 0.1–7.2
  1. aThe time window was defined as having started renal replacement therapy after 1995 and having started PD or daily HD between 2004 and 2011. Patients missing one or more of the following comorbidities were excluded: cancer, hypertension, congestive heart failure, cerebrovascular disease, peripheral vascular disease, chronic obstructive pulmonary disease, and diabetes
  2. bThe percentage matched was calculated as the proportion of eligible patients that were matched