N |
31,493 |
10,492 |
96,260 |
138,245 |
|
Average Age at dialysis initiation (years, SD) |
68.9 (12.5) |
70.2 (12.0) |
63.2 (15.4) |
65.1 (14.8) |
<.001 |
Age distribution |
|
|
|
|
|
Under 65 years |
8,933 (28.4%) |
2,629 (25.1%) |
49,040 (51.0%) |
60,602 (43.8%) |
<.001 |
65–79 years |
16,213 (51.5%) |
5,427 (51.7%) |
32,083 (33.3%) |
53,723 (38.9%) |
|
80+ years |
6,347 (20.1%) |
2,436 (23.2%) |
15,137 (15.7%) |
23,920 (17.3%) |
|
Caucasian race |
69.9% |
58.7% |
63.0% |
64.2% |
<.001 |
Male gender |
58.3% |
42.6% |
53.3% |
53.7% |
<.001 |
Hispanic ethnicity |
11.8% |
11.8% |
13.8% |
13.2% |
<.001 |
Body mass index (mean kg/m2) |
28.58 |
28.91 |
28.61 |
28.62 |
.001 |
Cause of ESRD |
|
|
|
|
|
Diabetes |
45.9% |
47.5% |
41.8% |
43.2% |
<.001 |
Hypertension |
28.2% |
29.9% |
27.4% |
27.8% |
<.001 |
Medical Comorbididites |
|
|
|
|
|
Amputation |
3.8% |
3.9% |
3.7% |
3.7% |
.578 |
Cancer |
8.3% |
8.3% |
7.5% |
7.7% |
<.001 |
Cardiovascular disease |
|
|
|
|
|
Atherosclerotic heart disease |
27.9% |
27.5% |
21.7% |
23.6% |
<.001 |
Congestive heart failure |
41.2% |
42.1% |
37.1% |
38.4% |
<.001 |
Peripheral vascular disease |
18.6% |
18.8% |
15.1% |
16.1% |
<.001 |
Other cardiac diseases |
19.3% |
18.3% |
17.1% |
17.7% |
<.001 |
Chronic obstructive pulmonary disease |
11.9% |
11.3% |
10.0% |
10.5% |
<.001 |
Diabetes, Insulin dependent |
36.8% |
39.1% |
36.4% |
36.7% |
<.001 |
Hypertension |
85.9% |
86.4% |
83.7% |
84.4% |
<.001 |
TIA/Stroke |
11.7% |
13.1% |
10.6% |
11.0% |
<.001 |
Tobacco smoker, current |
6.1% |
5.1% |
6.6% |
6.4% |
<.001 |
Other demographics |
|
|
|
|
|
Entitled to Federal Medicare benefits |
89.4% |
91.1% |
54.6% |
65.3% |
<.001 |
Inability to ambulate |
6.4% |
9.0% |
8.9% |
8.3% |
<.001 |
Inability to transfer |
2.6% |
3.8% |
4.6% |
4.1% |
<.001 |
Living in an assisted care home or other institution |
7.3% |
9.8% |
10.2% |
9.5% |
<.001 |
Medically unfit for transplant surgery |
10.2% |
12.1% |
10.9% |
10.9% |
<.001 |
Nephrologist care prior to HD initiation |
62.4% |
62.9% |
51.5% |
54.9% |
<.001 |
Dietitian care prior to HD initiation |
8.2% |
8.4% |
7.5% |
7.7% |
<.001 |
Serum Albumin level (mean g/dL) |
3.08 |
3.06 |
2.97 |
3.00 |
<.001 |
Hemoglobin A1c (mean) |
6.63 |
6.56 |
6.64 |
6.63 |
.229 |
Use of erythropoietin pre-dialysis |
33.2% |
35.7% |
25.7% |
28.2% |
<.001 |