TABLE 1.
Distribution of race and Hispanic ethnicity among survey respondents, by Medicare EDB race code and RTI race code versus beneficiary self‐report.
| EDB race code (N = 1,020,515) | RTI race code (N = 1,020,515) | Self‐reported a | ||
|---|---|---|---|---|
| Multiracial (N = 1,020,515) | Single race only (N = 990,271) | |||
| White | 812,503 (79.6%) | 740,812 (72.6%) | 747,925 (73.3%) | 726,423 (73.4%) |
| Black | 113,106 (11.1%) | 109,413 (10.7%) | 108,858 (10.7%) | 100,327 (10.1%) |
| Hispanic | 36,623 (3.6%) | 117,847 (11.6%) | 124,374 (12.2%) | 120,702 (12.2%) |
| AANHPI | 23,050 (2.3%) | 30,558 (3.0%) | 37,896 (3.7%) | 34,099 (3.4%) |
| AIAN | 2943 (0.3%) | 2894 (0.3%) | 25,086 (2.5%) | 3683 (0.4%) |
| Other | 19,134 (1.9%) | 7824 (0.8%) | 5037 (0.5%) | 5037 (0.5%) |
| Unknown b | 13,156 (1.3%) | 11,167 (1.1%) | — | — |
Note: Data Sources: Data linked between Medicare Master Beneficiary Summary File (MBSF), Medicare Advantage Health Outcomes Survey (HOS), and the Medicare Advantage Consumer Assessment of Healthcare Providers and Systems (CAHPS) from 2015 to 2017.
Abbreviations: AANHPI, non‐Hispanic Asian American or Native Hawaiian Pacific Islander; AIAN, Non‐Hispanic American Indian Alaska Native; EDB, Enrollment Database; RTI, Research Triangle Institute; White, non‐Hispanic White; Black, non‐Hispanic Black; Hispanic, Hispanic any race; Other, Non‐Hispanic Other race.
In the HOS and CAHPS, survey respondents are allowed to self‐report more than one race category, which is represented in the column for “Self‐reported, Multiracial” with row numbers that will sum to be greater than the total number of respondents. To compare with the Medicare race and ethnicity codes, which do not allow for multiracial identity, we include the subset of survey respondents self‐reporting only one race category in the column for “Single race only”.
In the EDB and RTI race codes, any missing values are coded with the value of “Unknown”. In the CAHPS and HOS surveys, any surveys with a missing response to the questions for self‐reported race and Hispanic ethnicity are considered incomplete and dropped from the validation analysis.