| | Characteristics | Total participants | | Neurodegenerative dementia (, %) | Control (, %) | value |
| | Age (years) | | | 1.000 | | 60–64 | 580 (5.2) | 2,320 (5.2) | | | 65–69 | 1,288 (11.5) | 5,152 (11.5) | | | 70–74 | 2,321 (20.7) | 9,284 (20.7) | | | 75–79 | 2,960 (26.4) | 11,840 (26.4) | | | 80–84 | 2,588 (23.1) | 10,352 (23.1) | | | 85+ | 1,478 (13.2) | 5,912 (13.2) | | | Sex | | | 1.000 | | Male | 3,568 (31.8) | 14,272 (31.8) | | | Female | 7,647 (68.2) | 30,588 (68.2) | | | Income | | | 1.000 | | 1 (lowest) | 1,280 (11.4) | 5,120 (11.4) | | | 2 | 1,092 (9.7) | 4,368 (9.7) | | | 3 | 447 (4.0) | 1,788 (4.0) | | | 4 | 479 (4.3) | 1,916 (4.3) | | | 5 | 519 (4.6) | 2,076 (4.6) | | | 6 | 621 (5.5) | 2,484 (5.5) | | | 7 | 711 (6.3) | 2,844 (6.3) | | | 8 | 778 (6.9) | 3,112 (6.9) | | | 9 | 1,067 (9.5) | 4,268 (9.5) | | | 10 | 1,722 (15.4) | 6,888 (15.4) | | | 11 (highest) | 2,499 (22.3) | 9,996 (22.3) | | | Region of residence | | | 1.000 | | Urban | 4,493 (40.1) | 17,972 (40.1) | | | Rural | 6,722 (59.9) | 26,888 (59.9) | | | Hypertension | | | 1.000 | | Yes | 8,200 (73.1) | 32,800 (73.1) | | | No | 3,015 (26.9) | 12,060 (26.9) | | | Diabetes | | | 1.000 | | Yes | 3,942 (35.1) | 15,768 (35.1) | | | No | 7,273 (64.9) | 29,092 (64.9) | | | Dyslipidemia | | | 1.000 | | Yes | 3,470 (30.9) | 13,880 (30.9) | | | No | 7,745 (69.1) | 30,980 (69.1) | | | Ischemic heart disease | | | <0.001 | | Yes | 1,670 (14.9) | 5,884 (13.1) | | | No | 9,545 (85.1) | 38,976 (86.9) | | | Stroke | | | <0.001 | | Yes | 5,425 (48.4) | 11,356 (25.3) | | | No | 5,790 (51.6) | 33,504 (74.7) | | | Death | | | <0.001 | | Yes | 3,873 (34.5) | 8,434 (18.8) | | | No | 7,342 (65.5) | 36,426 (81.2) | |
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