Table 1.
Descriptive characteristics of the study population (N = 30,042a)
| n (%) | |
|---|---|
| Charlson Comorbidity Indexb | |
| 0 | 13,732 (45.7%) |
| 1 | 3167 (10.5%) |
| 2 | 7199 (24.0%) |
| 3 | 2254 (7.5%) |
| 4 | 1942 (6.5%) |
| 5 | 787 (2.6%) |
| 6 | 540 (1.8%) |
| 7 | 216 (0.7%) |
| 8 | 106 (0.4%) |
| 9 | 52 (0.2%) |
| ≥10 | 47 (0.2%) |
| Birth year (ages as of January 1, 2012) | |
| 1900–1914 (97–111) | 162 (0.5%) |
| 1915–1919 (92–96) | 862 (2.9%) |
| 1920–1924 (87–91) | 2769 (9.2%) |
| 1925–1929 (82–86) | 6201 (20.6%) |
| 1930–1934 (77–81) | 11,137 (37.1%) |
| 1935–1939 (72–76)c | 8911 (29.7%) |
| Sex | |
| Men | 12,561 (41.8%) |
| Women | 17,481 (58.2%) |
| Household income level (n = 29,915) | |
| Low-income group | 8823 (29.5%) |
| Middle-to-high income group | 21,092 (70.5%) |
| Level of long-term care required | |
| Not required | 22,657 (75.4%) |
| Support level 1 | 586 (2.0%) |
| Support level 2 | 787 (2.6%) |
| Care level 1 | 1574 (5.2%) |
| Care level 2 | 1558 (5.2%) |
| Care level 3 | 1143 (3.8%) |
| Care level 4 | 918 (3.1%) |
| Care level 5 | 819 (2.7%) |
aUnless otherwise specified
bThe 2011 updated and reweighted version
cWe included only those individuals who were enrolled in the Late-Stage Medical Care System for the Elderly (i.e., adults ≥75 years) in this analysis