Table 1 Baseline characteristics of the study sample
Characteristics of the study sample | Dementia patients | Non-demented control subjects | p-value* | Potential dementia cases |
|---|---|---|---|---|
N | 9,147 | 29,741 | 2,893 | |
Mean age | 81.6 (7.4) | 79.6 (6.4) | <0.0001 | 79.0 (7.7) |
Females (as a %) | 6,819 (74.6%) | 20,932 (70.4%) | <0.0001 | 2,020 (69.8%) |
Beneficiary of long-term care (as a %) | 6,037 (66.0%) | 3,829 (12.9%) | <0.0001 | 1,078 (37.3%) |
Community-living at 1 January 2006 (as a %) | 6,212 (67.9%) | 29,028 (97.7%) | <0.0001 | 2,484 (85.9%) |
Shift to nursing home within 2006 (as a %) | 654 (7.1%) | 292 (1.0%) | <0.0001 | 107 (3.7%) |
Death in 2007 (as a %) | 1,621 (17.7%) | 1,764(5.9%) | <0.0001 | 311 (10.8%) |
Hypertension | 5,768 (63.1%) | 19,109 (64.3%) | 0.04 | 1,881 (65.0%) |
Lipid metabolism disorder | 2,718 (29.7%) | 10,825 (36.4%) | <0.0001 | 967 (33.4%) |
Diabetes mellitus | 3,446 (37.7%) | 8,977 (30.2%) | <0.0001 | 1,014 (35.1%) |
Ischaemic heart disease | 2,747 (30.0%) | 8,027 (27.0%) | <0.0037 | 836 (28.9%) |
Congestive heart failure | 3,075 (33.6%) | 6,478 (21.8%) | <0.0001 | 750 (25.9%) |