Table 1. Characteristics of the Sample, US Dialysis, and US Adult Populations, January 2021a.
| Patient characteristics | No. of individuals (%) | ||
|---|---|---|---|
| Sample population | US adult dialysis population | US adult population | |
| No. of individuals | 21 464 | 499 150 | 253 815 197 |
| Age, y | |||
| 18-44 | 2314 (11) | 60 540 (12) | 117 499 477 (46) |
| 45-64 | 8635 (40) | 207 022 (41) | 83 892 606 (33) |
| 65-79 | 7847 (37) | 174 341 (35) | 39 949 825 (16) |
| ≥80 | 2668 (12) | 57 247 (11) | 12 473 289 (5) |
| Sex | |||
| Male | 12 265 (57) | 285 281 (57) | 123 578 869 (49) |
| Female | 9199 (43) | 213 869 (43) | 130 236 328 (51) |
| Race/ethnicityb | |||
| Hispanic | 2945 (18) | 87 611 (18) | 60 861 275 (19) |
| Non-Hispanic White | 6311 (37) | 203 421 (41) | 197 202 727 (60) |
| Non-Hispanic Black | 4875 (29) | 173 190 (35) | 39 717 152 (12) |
| Non-Hispanic otherc | 2834 (17) | 34 928 (7) | 28 493 202 (9) |
| ZCTA majority race/ethnicityd,e | |||
| Non-Hispanic White | 6481 (30) | 206 678 (41) | 189 968 192 (58) |
| Non-Hispanic Black | 1504 (7) | 54 999 (11) | 12 550 083 (4) |
| Hispanic | 4023 (19) | 52 953 (11) | 26 310 796 (8) |
| Hispanic and Black | 2321 (11) | 43 396 (9) | 17 238 911 (5) |
| Integrated | 7135 (33) | 140 781 (28) | 80 206 374 (25) |
| Geographic region | |||
| Northeast | 2113 (10) | 78 619 (16) | 44 519 465 (18) |
| South | 10 857 (50) | 214 974 (43) | 96 250 597 (38) |
| Midwest | 2055 (10) | 94 490 (19) | 52 876 708 (21) |
| West | 6439 (30) | 111 067 (22) | 60 168 427 (24) |
Abbreviation: ZCTA, zip code tabulation area.
US adult population in 2018, US adult patients on dialysis population as of January 1, 2017. Race/ethnicity and ZCTA majority race/ethnicity computed for total US 2018 population (N = 326 274 356).
Proportions are reported for persons with available data; 904 (7.7%) in the sample were missing race/ethnicity.
Other comprises Asian, Native American, Pacific Islander, or persons reporting “other” race/ethnicity.
343 People in the US Renal Data System had missing data on ZCTA majority race/ethnicity due to missing zip code.
The ZCTA majority is defined as population in ZCTA ≥60% Hispanic persons, non-Hispanic Black persons, or non-Hispanic White persons; if among the remaining ZCTAs the Hispanic and Black population exceeded 60%of the population, the ZCTA is defined as “majority Hispanic and Black” or else as “integrated.”