Table 1.
Baseline characteristics of 2006 study sample
| Entire sample | Case group | Control group | p-value*** | |
|---|---|---|---|---|
|
Number: N |
37,753 |
9,139 |
28,614 |
|
|
Age: mean (SD) |
80.1 (6.8) |
81.6 (7.4) |
79.6 (6.4) |
<0.0001 |
|
Gender: females (%) |
27,012 (71.6) |
6,814 (74.6) |
20,198 (70.6) |
|
|
Environment: n (%) |
|
|
|
<0.0001 |
| Living in community setting |
33,119 (87.7) |
5,524 (60.4) |
27,595 (96.4) |
<0.0001 |
| Living in nursing home |
3,646 (9.7) |
2,934 (32.1) |
712 (2.5) |
|
| Change in environment |
988 (2.6) |
681 (10.3) |
307 (1.1) |
|
|
Care level*: n (%) |
|
|
|
<0.0001 |
| None |
28,746 (76.1) |
3,466 (37.9) |
25,280 (88.3) |
|
| 1 |
42,066 (11.1) |
2,066 (22.6) |
2,140 (7.5) |
|
| 2 |
3,131 (8.3) |
2,164 (23.7) |
967 (3.4) |
|
| 3 |
1,670 (4.4) |
1,443 (15.8) |
227 (0.8) |
|
| Modified Charlson Index**: mean (SD) | 3.2 (2.7) | 3.6 (2.7) | 3.0 (2.7) | <0.0001 |
SD = Standard Deviation. *Care level corresponds to the care level on 30 June 2006.
**The Charlson Index (CI) category ‘dementia’ is set at zero for all individuals.
***P-values derived from Chi2 test for distinct variables and from Kruskal–Wallis test for continuous variables.