Table 3 The risk of each type of dementia according to patient age.
Hearing group | Number | Dementia | Duration (year) | IR (per 1000) | Hazard ratio (95% CI) | p value for trend |
|---|---|---|---|---|---|---|
Any dementia | ||||||
Age (< 65) | ||||||
ND | 80,010 | 1278 | 623,634.39 | 2.049 | 1 (ref.) | < .0001 |
Ipsilateral HD | 15,897 | 430 | 122,763.98 | 3.503 | 1.601 (1.435, 1.787) | |
Non-severe HD | 29,762 | 1049 | 228,157.65 | 4.598 | 1.880 (1.732, 2.041) | |
Severe HD | 34,351 | 1042 | 262,881.64 | 3.964 | 1.933 (1.779, 2.101) | |
Age (≥ 65) | ||||||
ND | 111,192 | 23,048 | 708,214.30 | 32.544 | 1 (ref.) | < .0001 |
Ipsilateral HD | 16,310 | 3824 | 103,915.64 | 36.799 | 1.231 (1.19, 1.274) | |
Non-severe HD | 57,143 | 15,226 | 343,708.78 | 44.299 | 1.281 (1.255, 1.308) | |
Severe HD | 37,739 | 9393 | 226,619.47 | 41.448 | 1.300 (1.269, 1.332) | |
Alzheimer’s dementia | ||||||
Age (< 65) | ||||||
ND | 80,010 | 884 | 623,634.39 | 1.418 | 1 (ref.) | < .0001 |
Ipsilateral HD | 15,897 | 284 | 122,763.98 | 2.313 | 1.532 (1.339, 1.751) | |
Non-severe HD | 29,762 | 732 | 228,157.65 | 3.208 | 1.891 (1.714, 2.087) | |
Severe HD | 34,351 | 745 | 262,881.64 | 2.834 | 2.012 (1.822, 2.221) | |
Age (≥ 65) | ||||||
ND | 111,192 | 17,674 | 708,214.30 | 24.956 | 1 (ref.) | < .0001 |
Ipsilateral HD | 16,310 | 2856 | 103,915.64 | 27.484 | 1.207 (1.16, 1.256) | |
Non-severe HD | 57,143 | 11,556 | 343,708.78 | 33.622 | 1.273 (1.244, 1.304) | |
Severe HD | 37,739 | 7159 | 226,619.47 | 31.590 | 1.300 (1.264, 1.336) | |
Vascular dementia | ||||||
Age (< 65) | ||||||
ND | 80,010 | 208 | 623,634.39 | 0.334 | 1 (ref.) | < .0001 |
Ipsilateral HD | 15,897 | 76 | 122,763.98 | 0.619 | 1.732 (1.331, 2.254) | |
Non-severe HD | 29,762 | 177 | 228,157.65 | 0.776 | 1.979 (1.618, 2.421) | |
Severe HD | 34,351 | 173 | 262,881.64 | 0.658 | 1.938 (1.578, 2.380) | |
Age (≥ 65) | ||||||
ND | 111,192 | 2388 | 708,214.30 | 3.372 | 1 (ref.) | < .0001 |
Ipsilateral HD | 16,310 | 423 | 103,915.64 | 4.071 | 1.269 (1.144, 1.408) | |
Non-severe HD | 57,143 | 1604 | 343,708.78 | 4.667 | 1.301 (1.221, 1.386) | |
Severe HD | 37,739 | 972 | 226,619.47 | 4.290 | 1.281 (1.188, 1.38) | |
Other dementia | ||||||
Age (< 65) | ||||||
ND | 80,010 | 186 | 623,634.39 | 0.298 | 1 (ref.) | < .0001 |
Ipsilateral HD | 15,897 | 70 | 122,763.98 | 0.5702 | 1.783 (1.354, 2.35) | |
Non-severe HD | 29,762 | 140 | 228,157.65 | 0.614 | 1.721 (1.38, 2.145) | |
Severe HD | 34,351 | 124 | 262,881.64 | 0.472 | 1.557 (1.236, 1.961) | |
Age (≥ 65) | ||||||
ND | 111,192 | 2986 | 708,214.30 | 4.216 | 1 (ref.) | < .0001 |
Ipsilateral HD | 16,310 | 545 | 103,915.64 | 5.245 | 1.342 (1.225, 1.471) | |
Non-severe HD | 57,143 | 2066 | 343,708.78 | 6.010 | 1.310 (1.238, 1.386) | |
Severe HD | 37,739 | 1262 | 226,619.47 | 5.569 | 1.318 (1.234, 1.408) | |
