Table 1.
General Characteristics of Participants.
| Total participants | |||
|---|---|---|---|
| Characteristics | Dementia (n, %) | Control group (n, %) | P |
| Age (years old) | 1.000 | ||
| 60-64 | 580 (5.1) | 2,320 (5.1) | |
| 65-69 | 1,289 (11.3) | 5,156 (11.3) | |
| 70-74 | 2,325 (20.3) | 9,300 (20.3) | |
| 75-79 | 2,979 (26.0) | 11,916 (26.0) | |
| 80-84 | 2,706 (23.6) | 10,824 (23.6) | |
| 85+ | 1,566 (13.7) | 6,264 (13.7) | |
| Sex | 1.000 | ||
| Male | 3,666 (32.0) | 14,664 (32.0) | |
| Female | 7,779 (68.0) | 31,116 (68.0) | |
| Income | 1.000 | ||
| 1 (lowest) | 2,867 (25.1) | 11,468 (25.1) | |
| 2 | 1,031 (9.0) | 4,124 (9.0) | |
| 3 | 1,379 (12.0) | 5,516 (12.0) | |
| 4 | 1,886 (16.5) | 7,544 (16.5) | |
| 5 (highest) | 4,282 (37.4) | 17,128 (37.4) | |
| Region of residence | 1.000 | ||
| Urban | 4,620 (40.4) | 18,480 (40.4) | |
| Rural | 6,825 (59.6) | 27,300 (59.6) | |
| Hypertension | 1.000 | ||
| Yes | 8,311 (72.6) | 33,244 (72.6) | |
| No | 3,134 (27.4) | 12,536 (27.4) | |
| Diabetes mellitus | 1.000 | ||
| Yes | 4,065 (35.5) | 16,260 (35.5) | |
| No | 7,380 (64.5) | 29,520 (64.5) | |
| Dyslipidemia | 1.000 | ||
| Yes | 3,552 (31.0) | 14,208 (31.0) | |
| No | 7,893 (69.0) | 31,572 (69.0) | |
| Ischemic heart disease | <0.001* | ||
| Yes | 1,703 (14.9) | 6,004 (13.1) | |
| No | 9,742 (85.1) | 39,776 (86.9) | |
| Stroke | <0.001* | ||
| Yes | 5,517 (48.2) | 11,356 (24.8) | |
| No | 5,928 (51.8) | 34,424 (75.2) | |
| Depression | <0.001* | ||
| Yes | 3,237 (28.3) | 4,637 (10.1) | |
| No | 8,208 (71.7) | 41,143 (89.9) | |
| Herpes zoster infection | 0.104 | ||
| Yes | 928 (8.1) | 3,929 (8.6) | |
| No | 10,517 (91.9) | 41,851 (91.4) | |
*Chi-square test or Fisher’s exact test. Significance at P < 0.05.