Table 1.
Characteristics of community-dwelling Medicare beneficiaries 66 years and older with 2 documented mRNA vaccine doses as of August 1, 2021.a
| Characteristics | Overalla | White race | Black race | Asian race | Hispanic ethnicity |
|---|---|---|---|---|---|
| Unique beneficiaries, n (%) | 11,339,103 (100.0%) | 8,863,202 (100.0%) | 855,319 (100.0%) | 461,650 (100.0%) | 773,790 (100.0%) |
| Age in years, mean (SD) | 76.20 (7.36) | 76.51 (7.47) | 75.04 (6.85) | 75.97 (7.31) | 75.71 (6.94) |
| Age in years, n (%) | |||||
| 66–69 | 2,643,312 (23.31%) | 1,987,430 (22.42%) | 237,473 (27.76%) | 111,807 (24.22%) | 188,880 (24.41%) |
| 70–74 | 3,288,099 (29.00%) | 2,481,305 (28.00%) | 263,453 (30.80%) | 136,167 (29.50%) | 229,065 (29.60%) |
| 75–79 | 2,292,169 (20.21%) | 1,827,399 (20.62%) | 163,665 (19.13%) | 91,065 (19.73%) | 160,065 (20.69%) |
| 80–84 | 1,532,112 (13.51%) | 1,236,918 (13.96%) | 104,921 (12.27%) | 61,677 (13.36%) | 105,951 (13.69%) |
| 85–89 | 933,860 (8.24%) | 772,809 (8.72%) | 55,443 (6.48%) | 35,843 (7.76%) | 58,061 (7.50%) |
| 90+ | 649,551 (5.73%) | 557,341 (6.29%) | 30,364 (3.55%) | 25,091 (5.44%) | 31,768 (4.11%) |
| Female sex, n(%) | 6,746,330 (59.50%) | 5,280,685 (59.58%) | 554,109 (64.78%) | 270,119 (58.51%) | 468,629 (60.56%) |
| Geographic region (23), n(%) | |||||
| Boston | 785,317 (6.93%) | 678,063 (7.65%) | 24,735 (2.89%) | 20,879 (4.52%) | 27,635 (3.57%) |
| New York | 1,281,419 (11.30%) | 873,281 (9.85%) | 81,177 (9.49%) | 66,442 (14.39%) | 209,633 (27.09%) |
| Philadelphia | 1,045,382 (9.22%) | 856,749 (9.67%) | 110,113 (12.87%) | 27,883 (6.04%) | 17,970 (2.32%) |
| Atlanta | 2,226,798 (19.64%) | 1,737,900 (19.61%) | 290,320 (33.94%) | 32,485 (7.04%) | 110,504 (14.28%) |
| Chicago | 2,419,196 (21.33%) | 2,095,549 (23.64%) | 143,936 (16.83%) | 46,195 (10.01%) | 53,306 (6.89%) |
| Dallas | 927,542 (8.18%) | 648,520 (7.32%) | 106,915 (12.50%) | 27,819 (6.03%) | 118,475 (15.31%) |
| Kansas City | 429,773 (3.79%) | 387,007 (4.37%) | 22,583 (2.64%) | 4,647 (1.01%) | 5,561 (0.72%) |
| Denver | 200,250 (1.77%) | 179,310 (2.02%) | 2,315 (0.27%) | 2,936 (0.64%) | 8,746 (1.13%) |
| San Francisco | 1,639,651 (14.46%) | 1,067,698 (12.05%) | 61,024 (7.13%) | 220,747 (47.82%) | 213,640 (27.61%) |
| Seattle | 303,383 (2.68%) | 270,147 (3.05%) | 3,730 (0.44%) | 10,966 (2.38%) | 7,358 (0.95%) |
| Missing | 80,392 (0.71%) | 68,978 (0.78%) | 8,471 (0.99%) | 651 (0.14%) | 962 (0.12%) |
| Social deprivation index (24), n (%) | |||||
| Quintile 1 (low deprivation) | 2,213,826 (19.52%) | 1,959,358 (22.11%) | 46,729 (5.46%) | 74,134 (16.06%) | 43,199 (5.58%) |
| Quintile 2 | 2,230,557 (19.67%) | 1,937,061 (21.86%) | 70,958 (8.30%) | 77,678 (16.83%) | 64,135 (8.29%) |
| Quintile 3 | 2,178,134 (19.21%) | 1,819,937 (20.53%) | 101,818 (11.90%) | 94,930 (20.56%) | 86,036 (11.12%) |
| Quintile 4 | 2,208,971 (19.48%) | 1,758,184 (19.84%) | 169,682 (19.84%) | 86,494 (18.74%) | 125,931 (16.27%) |
| Quintile 5 (high deprivation) | 2,240,698 (19.76%) | 1,284,306 (14.49%) | 448,075 (52.39%) | 124,535 (26.98%) | 318,690 (41.19%) |
| Missing | 266,917 (2.35%) | 104,356 (1.18%) | 18,057 (2.11%) | 3,879 (0.84%) | 135,799 (17.55%) |
| Urbanicity, n (%) | |||||
| Large central metro | 3,084,935 (27.21%) | 2,056,587 (23.20%) | 352,136 (41.17%) | 228,372 (49.47%) | 330,496 (42.71%) |
| Large fringe metro | 3,240,539 (28.58%) | 2,655,316 (29.96%) | 209,295 (24.47%) | 123,226 (26.69%) | 136,585 (17.65%) |
| Medium metro | 2,605,362 (22.98%) | 2,134,496 (24.08%) | 166,955 (19.52%) | 87,958 (19.05%) | 127,535 (16.48%) |
| Small metro | 1,018,903 (8.99%) | 895,694 (10.11%) | 54,580 (6.38%) | 11,348 (2.46%) | 29,395 (3.80%) |
| Micropolitan | 802,856 (7.08%) | 709,225 (8.00%) | 41,954 (4.91%) | 9,291 (2.01%) | 18,515 (2.39%) |
| Non-core | 457,209 (4.03%) | 409,048 (4.62%) | 30,195 (3.53%) | 1,351 (0.29%) | 5,350 (0.69%) |
| Missing | 129,299 (1.14%) | 2,836 (0.03%) | 204 (0.02%) | 104 (0.02%) | 125,914 (16.27%) |
| Medicare and Medicaid enrollment (29) | |||||
| FFS with no Medicaid dual enrollment | 5,706,585 (50.33%) | 4,917,746 (55.48%) | 270,478 (31.62%) | 147,836 (32.02%) | 162,221 (20.96%) |
| FFS with Medicaid dual enrollment | 352,430 (3.11%) | 176,434 (1.99%) | 41,808 (4.89%) | 61,932 (13.42%) | 56,116 (7.25%) |
| MA with no Medicaid dual enrollment | 4,426,011 (39.03%) | 3,301,840 (37.25%) | 408,265 (47.73%) | 167,787 (36.35%) | 415,436 (53.69%) |
| MA with Medicaid dual enrollment | 403,358 (3.56%) | 151,294 (1.71%) | 75,391 (8.81%) | 61,617 (13.35%) | 102,746 (13.28%) |
| MIXED with no Medicaid dual enrollment | 381,712 (3.37%) | 286,171 (3.23%) | 45,447 (5.31%) | 13,522 (2.93%) | 23,945 (3.09%) |
| MIXED with Medicaid dual enrollment | 69,007 (0.61%) | 29,717 (0.34%) | 13,930 (1.63%) | 8,956 (1.94%) | 13,326 (1.72%) |
| History of comorbidities (25)b | |||||
| Cancer | 953,327 (15.73%) | 814,447 (15.99%) | 51,868 (16.61%) | 24,659 (11.76%) | 28,413 (13.01%) |
| Chronic Obstructive Pulmonary Disease | 640,770 (10.58%) | 560,042 (10.99%) | 34,117 (10.92%) | 12,991 (6.19%) | 19,232 (8.81%) |
| Congestive Heart Failure | 765,781 (12.64%) | 648,310 (12.73%) | 51,271 (16.42%) | 19,384 (9.24%) | 28,110 (12.87%) |
| Diabetes | 1,498,904 (24.74%) | 1,154,815 (22.67%) | 129,745 (41.55%) | 75,568 (36.02%) | 83,877 (38.42%) |
| Ischemic Stroke | 177,035 (2.92%) | 146,733 (2.88%) | 13,137 (4.21%) | 5,520 (2.63%) | 6,949 (3.18%) |
| Major Organ Transplant | 22,189 (0.37%) | 17,884 (0.35%) | 1,426 (0.46%) | 753 (0.36%) | 1,130 (0.52%) |
| Vascular disease | 1,174,801 (19.39%) | 1,000,709 (19.64%) | 68,260 (21.86%) | 31,134 (14.84%) | 42,846 (19.62%) |
| Renal Conditions | 350,354 (5.78%) | 288,327 (5.66%) | 28,990 (9.28%) | 10,145 (4.84%) | 14,101 (6.46%) |
| Claims-based frailty index (26)b | |||||
| Non-frail | 3,336,657 (55.07%) | 2,771,470 (54.40%) | 161,265 (51.64%) | 134,691 (64.21%) | 116,279 (53.26%) |
| Pre-Frail | 2,329,921 (38.45%) | 1,980,852 (38.88%) | 129,803 (41.57%) | 67,480 (32.17%) | 87,189 (39.93%) |
| Frail | 392,437 (6.48%) | 341,858 (6.71%) | 21,218 (6.79%) | 7,597 (3.62%) | 14,869 (6.81%) |
| Combined Comorbidity Index, mean (SD) (27, 28)b | 1.73 (2.65) | 1.73 (2.65) | 2.10 (2.98) | 1.41 (2.47) | 1.81 (2.75) |
FFS, Fee-for-Service; MA, Medicare Advantage; MIXED, Mixed FFS/MA enrollment in lookback period; SD, Standard Deviation.
a
Beneficiaries with Native American, Other Race/Ethnicity, or Missing race/ethnicity presented in the Supplement.
b
Measured for FFS Beneficiaries only (n = 6,059,015) due to incomplete claims data for MA beneficiaries to capture comorbidities. Prevalence may differ for MA beneficiaries.