Table 1.
Characteristics of people with and without dementia
| Variables | Total | People with dementia | People without dementia | p value | |||
|---|---|---|---|---|---|---|---|
| n | % | n | % | n | % | ||
| Total | 455,630 | 91,126 | 20.00 | 364,504 | 80.00 | ||
| Gender | 0.999 | ||||||
| Male | 237,945 | 52.22 | 47,589 | 52.22 | 190,356 | 52.22 | |
| Female | 217,685 | 47.78 | 43,537 | 47.78 | 174,148 | 47.78 | |
| Age group (years) | 0.999 | ||||||
| 50–64 | 21,660 | 4.75 | 4332 | 4.75 | 17,328 | 4.75 | |
| 65–74 | 85,675 | 18.80 | 17,135 | 18.80 | 68,540 | 18.80 | |
| 75–84 | 215,435 | 47.28 | 43,087 | 47.28 | 172,348 | 47.28 | |
| ≧85 | 132,860 | 29.16 | 26,572 | 29.16 | 106,288 | 29.16 | |
| Catastrophic illness | < 0.001 | ||||||
| Without | 370,567 | 81.33 | 71,996 | 79.01 | 298,571 | 81.91 | |
| With | 85,063 | 18.67 | 19,130 | 20.99 | 65,933 | 18.09 | |
| Injury outpatient/ER 1 year before index date | < 0.001 | ||||||
| Without | 313,474 | 68.80 | 61,083 | 67.03 | 252,391 | 69.24 | |
| With | 142,156 | 31.20 | 30,043 | 32.97 | 112,113 | 30.76 | |
| Comorbidity | |||||||
| Diabetes mellitus | < 0.001 | ||||||
| Without | 333,830 | 73.27 | 67,515 | 74.09 | 266,315 | 73.06 | |
| With | 121,800 | 26.73 | 23,611 | 25.91 | 98,189 | 26.94 | |
| Hypertension | < 0.001 | ||||||
| Without | 280,288 | 61.52 | 58,684 | 64.40 | 221,604 | 60.80 | |
| With | 175,342 | 38.48 | 32,442 | 35.60 | 142,900 | 39.20 | |
| Hyperlipidemia | < 0.001 | ||||||
| Without | 431,603 | 94.73 | 88,066 | 96.64 | 343,537 | 94.25 | |
| With | 24,027 | 5.27 | 3060 | 3.36 | 20,967 | 5.75 | |
| Cardiovascular disease | < 0.001 | ||||||
| Without | 408,717 | 89.70 | 78,975 | 86.67 | 329,742 | 90.46 | |
| With | 46,913 | 10.30 | 12,151 | 13.33 | 34,762 | 9.54 | |
| Chronic kidney disease | < 0.001 | ||||||
| Without | 412,668 | 90.57 | 85,668 | 94.01 | 327,000 | 89.71 | |
| With | 42,962 | 9.43 | 5458 | 5.99 | 37,504 | 10.29 | |
| Alcohol-related disease | < 0.001 | ||||||
| Without | 454,861 | 99.83 | 90,925 | 99.78 | 363,936 | 99.84 | |
| With | 769 | 0.17 | 201 | 0.22 | 568 | 0.16 | |
Diabetes mellitus: International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) 250; hypertension, ICD-9-CM 401.1, 401.9, 402.10, 402.90, 404.10, 404.90, 405.1, 405.9; hyperlipidemia, ICD-9-CM 272; cerebrovascular disease, ICD-9-CM 433–434, 436; chronic kidney disease, ICD-9-CM 274.1, 403–404, 440.1, 442.1, 447.3, 572.4, 580–589, 642.1, 646.2, 753); alcohol-related disease, ICD-9-CM 291, 303
p value by Chi-square/Fisher exact test on category variables and t test on continue variables
ER emergency room