Table 1.
Individual characteristics of dementia cases and controls
| Variablesa | Dementia | Control | p | ||
|---|---|---|---|---|---|
| n | % | n | % | ||
| Individual characteristics | |||||
| Gender | 1.0000e | ||||
| Men | 11,873 | 45.3 | 11,873 | 45.3 | |
| Female | 14,333 | 54.7 | 14,333 | 54.7 | |
| Age (years) | 1.0000e | ||||
| 65–69 | 2496 | 9.5 | 2496 | 9.5 | |
| 70–74 | 4614 | 17.6 | 4614 | 17.6 | |
| 75–79 | 6078 | 23.2 | 6078 | 23.2 | |
| 80–84 | 6813 | 26.0 | 6813 | 26.0 | |
| ≧80 | 6205 | 23.7 | 6205 | 23.7 | |
| Mean ± SDb | 79.3 ± 7.0 | 79.0 ± 7.0 | |||
| Occupational status | <.0001e | ||||
| white collar | 3095 | 11.8 | 3320 | 12.7 | |
| blue collar | 9839 | 37.5 | 10,332 | 39.4 | |
| others | 13,272 | 50.7 | 12,554 | 47.9 | |
| Salary-based insurance premium (NTD)b | <.0001e | ||||
| dependent | 9714 | 37.3 | 9667 | 36.9 | |
| < Median (19,200) | 6673 | 25.6 | 6153 | 23.5 | |
| ≧Median | 9679 | 37.1 | 10,386 | 39.6 | |
| Mean ± SDb,c | 8095.0 ± 11,038.5 | 8736.0 ± 11,752.3 | |||
| Number of comorbidities d | <.0001e | ||||
| 0 | 6058 | 23.1 | 7885 | 30.1 | |
| 1–2 | 12,290 | 46.9 | 12,334 | 47.1 | |
| ≧ 3 | 7858 | 30.0 | 5987 | 22.9 | |
| Total | 26,206 | 100.0 | 26,206 | 100.0 | |
a Inconsistency between total population and population summed for individual variables was due to missing information
bSD Standard deviation, NTD New Taiwan Dollars
c The dependent insurers were not included
d Number of comorbidities included hypertension, diabetes, heart disease (i.e., coronary artery disease or congestive heart failure), stroke, head injury, hyperlipidemia, depression, and chronic obstructive pulmonary disease
e Based on χ2 test for category variables