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. Author manuscript; available in PMC: 2012 Jan 1.
Published in final edited form as: Am J Kidney Dis. 2010 Nov 30;57(1):78–89. doi: 10.1053/j.ajkd.2010.08.028

Table 1.

Facility Casemix and Other Characteristics by Network

Network 1 n=144 Network 2 n=187 Network 3 n=125 Network 4 n=206 Network 5 n=240 Network 6 n=445 Network 7 n=223 Network 8 n=273 Network 9 n=305
CASEMIX*
Gender (% Female) 42.6 (37.2, 46.8) 43.4 (37.9, 47.6) 41.6 (37.9, 46.4) 44.9 (39.3, 49.2) 44.6 (39.7, 48.6) 46.8 (42.1, 51.6) 42.4 (37.3, 46.9) 47.1 (41.9, 52.0) 44.9 (39.4, 50.0)
Age (y) a 65.4 (63.5, 68.7) 64.1 (61.0, 66.5) 63.9 (60.9, 65.9) 64.1 (61.2, 67.1) 61.7 (59.1, 63.8) 59.9 (57.8, 61.7) 62.6 (59.8, 66.9) 60.3 (58.0, 62.4) 63.3 (60.8, 65.2)
Race
Caucasian 85.0 (71.0, 93.8) 53.3 (31.8, 77.4) 57.6 (42.9, 75.5) 78.8 (43.7, 94.4) 35.8 (16.8, 59.9) 25.5 (12.8, 40.5) 60.3 (40.2, 75.0) 31.1 (14.7, 60.8) 77.4 (51.9, 92.6)
Black 9.3 (3.8, 21.4) 35.6 (17.0, 58.3) 27.4 (9.4, 48.1) 19.2 (4.8, 52.3) 57.1 (31.6, 79.9) 72.3 (54.5, 84.8) 36.5 (20.5, 55.1) 66.7 (35.1, 83.8) 20.9 (5.6, 46.3)
Asian 1.4 (0.0, 3.1) 2.1 (0.5, 5.3) 1.5 (0.0, 5.1) 0.0 (0.0, 1.7) 0.7 (0.0, 2.9) 0.0 (0.0, 1.2) 0.9 (0.0, 2.2) 0.0 (0.0, 0.0) 0.0 (0.0, 0.0)
Hispanic Ethnicity 5.5 (0.0, 12.9) 9.9 (3.8, 20.0) 12.0 (6.1, 47.3) 1.5 (0.0, 4.2) 1.2 (0.0, 4.1) 1.5 (0.0, 4.2) 8.7 (3.4, 19.5) 0.0 (0.0, 1.7) 0.9 (0.0, 2.9)
Primary Cause of ESRD
DM 39.1 (33.8, 46.4) 41.3 (34.5, 46.3) 44.0 (38.1, 54.3) 42.5 (35.4, 49.1) 38.2 (33.3, 44.5) 42.0 (35.1, 48.1) 39.3 (34.4, 45.0) 42.1 (35.7, 48.6) 44.0 (37.2, 50.0)
HTN 22.3 (17.0, 27.1) 24.5 (19.3, 29.6) 25.3 (17.8, 32.0) 25.0 (18.8, 31.3) 32.0 (25.0, 39.5) 31.9 (25.3, 40.5) 31.7 (26.6, 37.1) 32.0 (25.9, 41.3) 24.0 (18.1, 30.6)
GN 11.3 (8.5, 13.7) 9.4 (6.5, 12.4) 9.0 (5.6, 11.8) 8.8 (6.3, 12.5) 7.6 (5.1, 10.9) 7.7 (4.6, 11.4) 7.9(5.4, 10.8) 7.1 (4.0, 10.3) 7.9 (5.0, 10.6)
Cystic Kidney Disease 3.0 (1.6, 5.0) 2.5 (1.2, 3.9) 2.5 (1.2, 3.7) 2.6 (0.0, 4.3) 1.7 (0.0, 3.3) 1.7 (0.0, 3.1) 2.6 (1.4, 4.3) 1.9 (0.0, 3.4) 1.9 (0.0, 3.5)
Co-morbidities c
PVD 11.9 (8.5, 17.3) 7.6 (4.6, 12.0) 10.9 (6.1, 19.6) 8.0 (4.3, 12.8) 5.0 (2.6, 8.7) 6.4 (3.4, 9.4) 7.1 (4.1, 10.6) 7.0 (3.5, 11.8) 9.1 (5.2, 14.0)
ASHD/CAD 22.1 (14.7, 28.2) 18.2 (10.2, 27.2) 20.4 (11.8, 28.1) 14.7 (6.5, 24.0) 7.9 (3.2, 15.5) 8.0 (3.5, 13.2) 9.3 (4.9, 15.5) 11.5 (4.7, 19.2) 14.5 (8.1, 23.5)
History of HTN 63.9 (56.9, 68.2) 60.0 (54.5, 65.4) 63.6 (58.5, 69.0) 60.0 (52.8, 67.4) 57.7 (51.0, 64.5) 60.3 (53.7, 65.7) 57.8 (50.5, 65.0) 61.5 (55.7, 67.3) 63.0 (56.5, 69.0)
DM 36.5 (31.4, 42.8) 35.4 (29.0, 40.0) 39.1 (34.7, 46.0) 37.5 (30.0, 44.0) 34.0 (28.3, 42.6) 37.5 (32.0, 42.9) 34.2 (28.4, 40.6) 38.5 (32.4, 43.1) 41.9 (34.5, 48.0)
VASCULAR ACCESS AT START OF MAINTENANCE HD*
AVF Used 18.2 (13.3, 23.3) 12.6 (9.4, 17.6) 12.1 (7.5, 15.7) 12.5 (8.1, 16.2) 10.5 (7.2, 14.3) 11.1 (7.2, 15.0) 8.2 (5.6, 12.7) 10.9 (6.9, 15.3) 11.4 (6.9, 16.2)
AVF Placed/Not Used 14.1 (10.6, 19.1) 15.4 (11.1, 20.0) 17.2 (9.3, 26.1) 10.7 (7.1, 14.5) 10.3 (6.6, 14.4) 10.8 (6.7, 15.6) 12.3 (8.1, 18.2) 12.8 (8.1, 17.6) 11.8 (7.9, 17.5)
CVC Usedb 48.4 (42.2, 55.2) 50.0 (43.4, 57.1) 56.3 (50.7, 60.2) 55.3 (48.1, 61.8) 52.2 (45.9, 58.1) 49.2 (42.7, 55.6) 53.1(46.1, 59.8) 51.9 (44.0, 58.1) 52.5 (45.8, 60.3)
OTHER**
LDO 69.4 36.9 52.0 76.7 75.0 77.8 81.6 85.0 70.6
Network 10 n=149 Network 11 n=312 Network 12 n=196 Network 13 n=234 Network 14 n=341 Network 15 n=206 Network 16 n=124 Network 17 n=141 Network 18 n=206
CASEMIX*
Gender (% Female) 42.3 (37.5, 47.3) 43.4 (38.5, 48.8) 44.4 (38.5, 50.0) 47.2 (41.0, 53.0) 46.7 (42.9, 51.1) 44.1 (38.6, 48.6) 41.8 (38.0, 45.3) 44.9 (41.4, 50.0) 42.7 (38.7, 46.6)
Age a 63.0 (60.1, 65.5) 64.9 (61.1, 68.0) 63.6 (60.8, 66.1) 60.0 (58.3, 61.9) 60.2 (58.4, 62.4) 61.3 (58.6, 63.5) 62.2 (60.4, 64.4) 62.5 (60.3, 64.5) 61.9 (59.7, 64.4)
Race
Caucasian 69.0 (33.3, 85.7) 81.3 (52.8, 93.3) 86.7 (65.3, 94.4) 38.1 (21.3, 63.6) 70.6 (47.0, 90.5) 80.8 (62.8, 87.9) 86.8 (68.5, 93.8) 64.0 (35.5, 78.9) 74.7 (61.2, 83.7)
Black 23.4 (8.8, 61.1) 5.8 (0.0, 34.2) 10.7 (3.0, 31.1) 56.4 (26.1, 76.9) 24.6 (7.5, 48.3) 5.6 (1.0, 13.3) 2.7 (0.0, 7.7) 8.3 (3.7, 20.2) 10.3 (4.4, 23.0)
Asian 0.7 (0.0, 3.4) 0.0 (0.0, 2.9) 0.0 (0.0, 1.7) 0.0 (0.0, 1.2) 0.0 (0.0, 2.0) 1.1 (0.0, 2.7) 2.2 (0.0, 8.8) 13.4 (6.8, 22.2) 6.5 (3.1, 13.3)
Hispanic Ethnicity 8.2 (2.3, 16.4) 1.9 (0.0, 5.5) 2.4 (0.0, 5.3) 1.6 (0.0, 4.3) 34.7 (18.3, 72.7) 26.7 (14.6, 46.2) 6.7 (3.2, 12.8) 20.5 (11.6, 32.8) 46.6 (30.8, 58.2)
Primary Cause of ESRD
DM 39.4 (34.3, 45.5) 42.9 (36.5, 48.6) 43.5 (38.5, 50.0) 43.4 (35.7, 50.0) 51.4 (44.4, 62.9) 50.7 (43.8, 58.9) 42.2 (35.9, 50.0) 48.6 (43.0, 56.9) 49.1 (41.3, 55.1)
HTN 30.8 (24.2, 39.4) 23.9 (16.7, 31.4) 25.0 (19.1, 34.5) 33.3 (24.3, 43.8) 24.4 (17.1, 32.4) 18.5 (13.5, 24.0) 18.9 (14.6, 22.8) 21.7 (17.6, 27.7) 27.6 (21.4, 35.0)
GN 7.4 (4.7, 11.3) 9.7 (6.1, 13.5 ) 9.3 (5.6, 13.3) 6.1 (3.3, 9.4) 5.8 (3.8, 9.0) 9.7 (5.8, 12.1) 12.2 (8.4, 15.2) 9.9 (7.1, 13.0) 6.7 (4.4, 9.6)
Cystic Kidney Disease 1.8 (0.0, 3.3) 2.3 (0.0, 4.6) 2.2 (0.0, 4.5) 1.6 (0.0, 3.3) 1.7 (0.0, 2.8) 1.9 (0.0, 3.7) 3.5 (2.0, 5.3) 2.1 (1.0, 3.4) 1.7 (0.9, 2.7)
Co-morbidities c
PVD 6.5 (3.2, 10.2) 9.2 (5.5, 15.6) 7.4 (3.4, 12.1) 8.1 (4.3, 13.3) 7.4 (3.9, 11.7) 5.4 (2.4, 9.1) 9.5 (7.1, 13.4) 5.3 (3.2, 7.3) 4.7 (2.2, 8.3)
ASHD/CAD 8.7 (3.3, 17.6) 18.7 (10.0, 26.6) 13.2 (6.3, 21.7) 10.7 (5.0, 18.4) 10.5 (4.4, 18.2) 8.4 (3.9, 14.4) 15.8 (10.9, 22.5) 8.0 (3.8, 14.3) 5.7 (2.6, 11.7)
History of HTN 62.1 (55.1, 68.5) 64.9 (58.4, 71.4) 61.2 (54.9, 67.7) 63.3 (55.8, 69.2) 62.1 (55.7, 67.1) 61.5 (56.8, 67.2) 63.3 (57.9, 68.4) 57.9 (51.3, 63.4) 58.5 (53.1, 63.6)
DM 38.5 (31.2, 43.9) 40.6 (33.8, 47.2) 38.6 (31.3, 44.0) 39.8 (33.3, 45.7) 42.3 (36.6, 48.9) 41.1 (35.4, 47.4) 41.2 (35.1, 45.8) 36.6 (32.1, 43.2) 38.3 (32.1, 44.0)
VASCULAR ACCESS AT START OF MAINTENANCE HD*
AVF Used 9.4 (5.6, 14.0) 13.0 (8.1, 18.2) 11.1 (7.7, 17.1) 9.8 (5.7, 14.0) 8.6 (5.4, 12.8) 12.4 (7.7, 16.7) 18.4 (14.3, 21.7) 13.4 (9.8, 17.2) 8.0 (5.2, 12.7)
AVF Placed/Not Used 9.3 (6.0, 14.3) 11.1 (7.5, 17.3) 13.2 (9.2, 20.0) 9.6 (5.9, 14.3) 12.9 (9.2, 17.1) 12.7 (8.3, 17.7) 12.8 (8.7, 19.1) 12.1 (8.3, 16.7) 8.5 (4.9, 13.4)
CVC Usedb 53.7 (48.6, 59.3) 55.3 (48.5, 60.7) 54.5 (46.5, 60.7) 54.4 (46.9, 62.3) 55.1 (48.1, 61.8) 55.8 (47.9, 62.5) 49.0 (42.1, 55.6) 49.4 (44.0. 55.5) 54.1 (47.4, 59.8)
OTHER**
LDO 68.5 50.3 69.4 73.1 71.6 74.3 54.8 56.0 62.1

Note: Values shown are median (15th, 75th percentile). Categorical variables are given as percentage.

*

Source: Centers for Medicare & Medicaid Services, Standard Information Medical System, End Stage Renal Disease Medical Evidence Report Medicare Entitlement and/or Patient Registration, Form CMS-2728, January 2007 – April 2010.

**

Source: Centers for Medicare & Medicaid Services, Vascular Access Data Set as delivered by the Network Information Technology Support contractor to FFBI contractor, January 2007 – April 2010.

a

on June 1, 2010

b

with or without other access present

c

at start of maintenance hemodialysis

Abbreviations: Arteriosclerotic Heart Disease (ASHD); Arterio-venous Fistula (AVF); Coronary Artery Disease (CAD); Central Venous Catheter (CVC); GN, Glomerulonephritis; HD, hemodialysis; LDO, large dialysis organization; DM, diabetes mellitus; HTN, hypertension; Peripheral Vascular Disease (PVD)