Table 1 Demographics, Health Plan Enrollment, and Illness Burden
From: Healthcare costs and utilization for Medicare beneficiaries with Alzheimer's
AD Cohort | Control Group | |
|---|---|---|
N = 25,109 | N = 75,327 | |
Characteristic | ||
Age, Mean (SD)* | 80.1 (6.5) | 80.1 (6.6) |
Age, n (%) | ||
65 – 69 | 1,529 (6.1) | 4,613 (6.1) |
70 – 74 | 3,482 (13.9) | 10,330 (13.7) |
75 – 79 | 6,345 (25.6) | 19,641 (26.1) |
80 – 84 | 7,326 (29.2) | 21,471 (28.5) |
85 – 89 | 4,654 (18.5) | 13,428 (17.8) |
90+ | 1,683 (6.7) | 5,844 (7.8) |
Female, N (%) | 15,473 (61.6) | 47,082 (62.5) |
Regional distribution, N (%) | ||
Northeast | 2,986 (11.9) | 10,783 (14.3) |
North Central | 8,710 (34.7) | 25,725 (34.2) |
South | 9,178 (36.6) | 24,028 (31.9) |
West | 4,185 (16.7) | 14,534 (19.3) |
Unknown | 50 (0.2) | 257 (0.3) |
Months of health plan enrollment in 2004, Mean (SD) | 11.1 (2.51) | 11.2 (2.34) |
Enrolled all 12 months of 2004, N (%) | 21,380 (85.2) | 65,949 (87.6) |
Number of Comorbidities, Mean (SD)†§ | 8.1 (5.5) | 6.5 (5.0) |
Illness burden score, Mean (SD)ठ| 1.23 (0.80) | 1.04 (0.77) |