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Table 1 Baseline demographics, utilization, and outcomes for low primary care, mixed care and high primary care groups

From: Care of the dialysis patient: Primary provider involvement and resource utilization patterns - a cohort study

Demographics and comorbidities

Overall (N = 2985)

Groupa

  

Low Primary Care <25th percentile (N = 737)

Mixed Care 25th–75th percentile (N = 1501)

High Primary Care >75th percentile (N = 747)

Age at ESRD onset, Median (IQR)

66.0 (53.0, 75.0)

60.0 (48.0, 70.0)

68.0 (57.0, 76.0)

64.0 (52.0, 74.0)

Age group, n (%)

 18- < 45

412 (13.8)

141 (19.1)

165 (11.0)

106 (14.2)

 45- < 65

987 (33.1)

307 (41.7)

406 (27.1)

274 (36.7)

 65- < 75

830 (27.8)

170 (23.1)

473 (31.5)

187 (25.0)

 75+

756 (25.3)

119 (16.2)

457 (30.5)

180 (24.1)

Males, n (%)

1777 (59.5)

477 (64.7)

877 (58.4)

423 (56.6)

Race, n (%)

 White

2689 (90.1)

667 (90.5)

1360 (90.6)

662 (88.6)

 Black

163 (5.5)

39 (5.3)

76 (5.1)

48 (6.4)

 Other

133 (4.5)

31 (4.2)

65 (4.3)

37 (5.0)

Charlson score, median (IQR)

7.0 (5.0, 9.0)

6.0 (4.0, 8.0)

7.0 (5.0, 9.0)

7.0 (5.0, 9.0)

Charlson score 8 or more, n (%)

1210 (40.5)

221 (30.0)

684 (45.6)

305 (40.8)

Primary cause of ESRD, n (%)

 Diabetes

1073 (36.0)

231 (31.3)

552 (36.8)

290 (38.8)

 Hypertension

621 (20.8)

148 (20.1)

323 (21.5)

150 (20.1)

 Glomerulonephritis

451 (15.1)

127 (17.2)

214 (14.3)

110 (14.7)

 Infiltrative diseases

180 (6.0)

41 (5.6)

92 (6.1)

47 (6.3)

 Cystic kidney

87 (2.9)

35 (4.8)

35 (3.8)

17 (2.3)

Health care utilization

 Total Follow-up (person years)

8440.7

1806.2

4394.1

2240.4

 Primary Care Visits (ppy)

4.5

.6

4.9

6.9

 Other Specialty Visits (ppy)

9.1

8.0

10.0

8.1

 Mid-level/Nephrology Visits (ppy)

2.8

4.0

3.4

0.6

 Hospital Admissions (ppy)

2.2

1.8

2.3

2.2

 ED visits (ppy)

1.5

1.2

1.6

1.6

Outcomes

 Transplant, n (% at 4 years)

605 (20.3%)

232 (31.5%)

251 (16.7%)

122 (16.3%)

 Died, n (% at 4 years)

1444 (48.4%)

272 (36.9%)

775 (51.6%)

397 (51.3%)

 Median Survival years (IQR)

4.1 (2.6, 6.7)

4.3 (2.3, 7.0)

4.1 (2.0, 6.4)

3.9 (2.0, 7.0)

  1. ESRD end-stage renal disease, ppy per person-year
  2. aGroups based on proportion of primary care Evaluation and Management (EM) visits out of total EM visits to primary care, mid-level/nephrology providers
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BMC Nephrology

ISSN: 1471-2369

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