Table 1 Demographic characteristics of the study cohorts
haracteristics | Medicare Part D (65+) | Commercial (65+) | Commercial (60–64) | |||
|---|---|---|---|---|---|---|
2011 (n = 175,524) | 2012 (n = 192,080) | 2011 (n = 179,334) | 2012 (n = 181,927) | 2011 (n = 197,653) | 2012 (n = 200,517) | |
Age in years, mean | 73.91 | 73.64 | 72.56 | 72.38 | 61.47 | 61.48 |
Median (Q1;Q3) | 72 (68;79) | 72 (67;78) | 70 (66;77) | 70 (66;77) | 61 (60;63) | 61 (60;63) |
Sex, n (%) | ||||||
Female | 98,629 (56.2) | 107,000 (55.7) | 91,193 (50.9) | 92,312 (50.7) | 101,613 (51.4) | 103,114 (51.4) |
Male | 76,895 (43.8) | 85,080 (44.3) | 88,141 (49.1) | 89,615 (49.3) | 96,040 (48.6) | 97,403 (48.6) |
Race/Ethnicity, n (%)a | ||||||
Non-Hispanic white | 95,558 (54.4) | 101,282 (52.7) | 90,141 (50.3) | 89,986 (49.5) | 88,971 (45.0) | 89,435 (44.6) |
Non-Hispanic black | 11,837 (6.7) | 12,830 (6.7) | 28,247 (15.8) | 28,513 (15.7) | 20,781 (10.5) | 21,243 (10.6) |
Hispanic | 46,324 (26.4) | 53,092 (27.6) | 33,975 (19.0) | 35,678 (19.6) | 48,384 (24.5) | 50,986 (25.4) |
Asian/Pacific Islanders | 14,814 (8.4) | 16,631 (8.7) | 17,256 (9.6) | 17,940 (9.9) | 21,825 (11.0) | 22,226 (11.1) |
Others/unknown | 6991 (4.0) | 8245 (4.3) | 9715 (5.4) | 9810 (5.4) | 17,692 (9.0) | 16,627 (8.3) |
Neighborhood education, mean (percentage with college and higher), % | 58.8 | 58.09 | 59.86 | 58.82 | 59.44 | 58.44 |
Median (Q1;Q3) | 60.86 (44.06;75.21) | 59.63 (43.54;73.49) | 61.80 (46.42;75.16) | 60.31 (45.76;73.20) | 61.53 (45.38;75.35) | 59.83 (44.88;73.26) |
Mean Neighborhood household income in $ | 64,482 | 64,057 | 65,540 | 65,275 | 66,720 | 66,274 |
Median (Q1, Q3) | 59,583 (43,710;80,371) | 59,447 (43,542;79,419) | 61,101 (45,170;81,636) | 61,143 (45,282;80,682) | 62,266 (45,926;82,639) | 62,114 (45,805;81,866) |