Table 1.
Descriptive characteristics of ESRD facility and patient composition in hospital referral regions, in 2006 and 2013
| N=306 hospital referral regions | 2006 Mean (SD) |
2013 Mean (SD) |
|---|---|---|
| Facilities offering PD, % | 40.2 (20.4) | 43.4 (18.4) |
| Dialysis facility composition | ||
| % For profit-owned | 74.9 (28.5) | 81.9 (23.6) |
| % Freestanding | 83.8 (23.7) | 89.3 (19.5) |
| % Chain affiliation | 80.4 (21.3) | 86.0 (20.4) |
| % in urban zip codes | 67.6 (28.4) | 67.9 (28.4) |
| Dialysis market competition, HHI | 20.5 (18.3) | 15.7 (14.0) |
| ESRD-patient composition | ||
| ESRD incidencea | 3.5 (1.4) | 3.4 (1.4) |
| PD prevalenceb | 83.6 (37.3) | 91.1 (35.6) |
| % White and non-Hispanic | 61.2 (22.8) | 59.3 (22.7) |
| % Age <65 years | 58.0 (5.6) | 57.1 (5.0) |
| % Employed | 16.4 (4.3) | 18.5 (4.6) |
| General market composition | ||
| Hospital densityc | 316.9 (123.1) | 293.6 (106.1) |
| Per capita income, $ | 33,886 (7,836) | 42,277 (8,647) |
SD: standard deviation; ESRD: end-stage renal disease; PD: peritoneal dialysis; HHI: Herfindahl-Hirschman Index of dialysis market competition.
a
ESRD incidence is defined as the number of ESRD patients, per 10,000 general population in HRR, per year.
b
PD prevalence is defined as the number of PD patients, per 1000 ESRD population in HRR, per year.
c
Hospital density is defined as the number of community hospital beds per 100,000 HRR general population