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%) |
Data are mean (standard deviation) unless noted otherwise.
* Statistical significance at 5% level based on Chi2 tests for categorical variables and Kruskal–Wallis tests for continuous variables.
~ Statistical significance at 5% level adjusted for age and gender within logistic regression models.