Table 1.
Characteristics of study population (N = 397,362) group by year of first treatment for ESRD
| Characteristic | 1995 to 1998 | 1999 to 2002 | 2003 to 2006 | P |
|---|---|---|---|---|
| n | 112,495 | 137,624 | 147,243 | |
| Age (years) | <0.0001 | |||
| 60.0 to 64.9 | 32,850 (29.2) | 40,926 (29.7) | 47,344 (32.1) | |
| 65.0 to 69.9 | 38,973 (34.6) | 46,507 (33.8) | 49,452 (33.6) | |
| 70.0 to 74.9 | 40,672 (36.2) | 50,191 (36.5) | 50,447 (34.3) | |
| Female | 55,740 (49.6) | 66,640 (48.4) | 68,511 (46.5) | <0.0001 |
| Race | 0.03 | |||
| black | 29,965 (26.6) | 36,143 (26.3) | 38,772 (26.3) | |
| white | 75,957 (67.5) | 93,087 (67.6) | 99,641 (67.7) | |
| other | 6573 (5.8) | 8394 (6.1) | 8830 (6.0) | |
| Cause of ESRD | <0.0001 | |||
| diabetes | 57,844 (51.4) | 73,731 (53.6) | 78,065 (53.0) | |
| GN | 8441 (7.5) | 8500 (6.2) | 7827 (5.3) | |
| other | 46,210 (41.1) | 55,393 (40.2) | 61,351 (41.7) | |
| BMI ≥30 | 19,800 (19.8) | 36,986 (28.1) | 48,671 (34.2) | <0.0001 |
| Comorbid disease | ||||
| IHD | 36,640 (32.6) | 45,988 (33.4) | 44,375 (30.1) | <0.0001 |
| cerebrovascular disease | 12,281 (10.9) | 15,364 (11.2) | 16,483 (11.2) | 0.06 |
| PVD | 20,361 (18.1) | 24,115 (17.5) | 25,391 (17.2) | <0.0001 |
| CHF | 42,752 (38.0) | 49,988 (36.3) | 53,607 (36.4) | <0.0001 |
| COPD | 10,126 (9.0) | 13,049 (9.5) | 15,504 (10.5) | <0.0001 |
| Inability to ambulate or transfer | 5618 (5.0) | 6165 (4.5) | 9005 (6.1) | <0.0001 |
| History of smoking | 5605 (5.0) | 6088 (4.4) | 7564 (5.1) | <0.0001 |
| Substance abuse | 1559 (1.4) | 1596 (1.2) | 1987 (1.3) | <0.0001 |
| State of residence grouped by deceased donation ratea | 0.0002 | |||
| Q1 | 13,890 (12.6) | 16,365 (12.2) | 17,501 (12.2) | |
| Q2 | 10,872 (9.9) | 13,416 (10.0) | 14,373 (10.0) | |
| Q3 | 33,922 (30.8) | 41,626 (30.9) | 44,440 (30.9) | |
| Q4 | 32,964 (29.9) | 40,839 (30.3) | 43,860 (30.5) | |
| Q5 | 18,589 (16.9) | 22,422 (16.7) | 23,549 (16.4) | |
| Median household incomeb | <0.0001 | |||
| $0 to $30,177 | 28,025 (25.7) | 33,315 (25.0) | 34,562 (24.4) | |
| $30,178 to $37,370 | 27,377 (25.1) | 33,260 (25.0) | 35,399 (25.0) | |
| $37,371 to $47,814 | 27,036 (24.8) | 33,184 (24.9) | 35,824 (25.3) | |
| >$47,814 | 26,729 (24.5) | 33,433 (25.1) | 35,984 (25.4) | |
| Insurer | <0.0001 | |||
| Medicare only | 41,193 (36.6) | 54,744 (39.8) | 63,543 (43.2) | |
| private only | 21,945 (19.5) | 24,810 (18.0) | 24,809 (16.9) | |
| both | 39,844 (35.4) | 49,450 (35.9) | 50,360 (34.2) | |
| neither | 9513 (8.5) | 8620 (6.3) | 8531 (5.8) |
Data are n (%). CHF, congestive heart failure; COPD, chronic obstructive pulmonary disease; GN, glomerulonephritis; IHD, ischemic heart disease; PVD, peripheral vascular disease; Q, quintile.
a
Based on deceased organ donation rate per million population (6).
b
Determined using zip code of residence (7).