Table 1. Suicides Among People With and Without Neurological Disorders.
| With Neurological Disorder | No Neurological Disorder | Adjusted Incidence Rate Ratio (95% CI)b |
Fully Adjusted Incidence Rate Ratio (95% CI)c |
|||
|---|---|---|---|---|---|---|
| No./Total No. of Individualsa | Incidence Rate per 100 000 Person-Years | No./Total No. of Individualsa | Incidence Rate per 100 000 Person-Years | |||
| Any neurological disorder | 5511/1 248 262 | 44.0 | 29 972/6 052 133 | 20.1 | 2.5 (2.4-2.6) | 1.8 (1.7-1.8) |
| ALS | 34/7204 | 130.8 | 35 449/7 293 191 | 21.9 | 5.1 (3.7-7.2) | 4.9 (3.5-6.9) |
| Huntington disease | 19/1228 | 203.6 | 35 464/7 299 167 | 21.9 | 9.5 (6.1-14.9) | 4.9 (3.1-7.7) |
| Guillain-Barréd | 10/3203 | 36.1 | 16 060/6 427 797 | 15.6 | 2.1 (1.1-3.9) | 2.2 (1.2-4.1) |
| Multiple sclerosis | 152/31 136 | 38.3 | 35 331/7 269 259 | 21.9 | 2.1 (1.8-2.5) | 2.2 (1.9-2.6) |
| Diseases of myoneural junction and muscle | 961/129 326 | 48.6 | 34 522/7 171 069 | 21.6 | 2.7 (2.5-2.9) | 1.9 (1.8-2.1) |
| Other brain disordersd | 148/61 354 | 27.9 | 15 922/6 369 646 | 15.6 | 2.3 (2.0-2.7) | 1.8 (1.5-2.1) |
| Encephalitis | 53/9369 | 39.7 | 35 430/7 291 026 | 21.9 | 2.1 (1.6-2.7) | 1.7 (1.3-2.3) |
| Polyneuropathy and peripheral neuropathy | 860/142 073 | 52.8 | 34 623/7 158 322 | 21.6 | 2.3 (2.1-2.5) | 1.7 (1.6-1.8) |
| Parkinson disease | 192/50 262 | 72.0 | 35 291/7 250 133 | 21.8 | 2.4 (2.1-2.7) | 1.7 (1.5-1.9) |
| Epilepsy | 1048/181 686 | 48.7 | 34 435/7 118 709 | 21.6 | 2.8 (2.6-3.0) | 1.7 (1.6-1.8) |
| Head injury | 1592/406 956 | 36.4 | 33 891/6 893 439 | 21.5 | 2.6 (2.5-2.7) | 1.7 (1.6-1.7) |
| CNS infection | 117/30 802 | 32.1 | 35 366/7 269 593 | 21.9 | 1.9 (1.5-2.2) | 1.6 (1.3-1.9) |
| Meningitis | 57/19 317 | 25.2 | 35 426/7 281 078 | 21.9 | 1.6 (1.2-2.0) | 1.6 (1.2-2.0) |
| Myasthenia gravis | 14/6313 | 26.0 | 35 469/7 294 082 | 21.9 | 1.4 (0.8-2.4) | 1.4 (0.8-2.4) |
| Chronic inflammatory demyelinating polyneuropathyd | 4/1798 | 31.1 | 16 066/6 429 202 | 15.6 | 1.6 (0.6-4.3) | 1.4 (0.5-3.7) |
| Intracerebral hemorrhage | 106/28 691 | 61.1 | 35 377/7 271 704 | 21.9 | 2.1 (1.7-2.6) | 1.4 (1.1-1.6) |
| Cerebral infarction | 111/30 240 | 63.8 | 35 372/7 270 155 | 21.9 | 2.2 (1.8-2.6) | 1.3 (1.1-1.6) |
| Subarachnoid hemorrhage | 71/14 953 | 40.4 | 35 412/7 285 442 | 21.9 | 1.8 (1.4-2.2) | 1.3 (1.0-1.7) |
| Stroke | 1235/319 122 | 56.7 | 34 248/6 981 273 | 21.4 | 1.8 (1.7-1.9) | 1.3 (1.2-1.3) |
| Dementia | 569/243 022 | 57.7 | 34 914/7 057 373 | 21.7 | 2.2 (2.1-2.4) | 0.8 (0.7-0.9) |
| Muscular dystrophy | 5/4882 | 10.2 | 35 478/7 295 513 | 21.9 | 0.6 (0.3-1.5) | 0.7 (0.3-1.7) |
| Intellectual disabilities | 96/35 266 | 23.0 | 35 387/7 265 129 | 21.9 | 1.6 (1.3-1.9) | 0.6 (0.5-0.8) |
| Alzheimer diseased | 45/73 279 | 16.5 | 16 025/6 357 721 | 15.6 | 0.7 (0.5-1.0) | 0.2 (0.2-0.3) |
Abbreviations: ALS, amyotrophic lateral sclerosis; CNS, central nervous system.
Each person could be diagnosed with multiple neurological disorders. The sum of numbers of persons diagnosed with individual disorders is therefore not equal to the number of persons diagnosed any with neurological disorders.
Adjusted for period, sex, age group.
Full adjusted models were adjusted for period, sex, age group, living status, region, socioeconomic status, physical comorbidity, psychiatric hospitalization prior to diagnosis of any neurological disorders, and deliberate self-harm prior to diagnosis of any neurological disorders.
Guillain-Barré, chronic inflammatory demyelinating polyneuropathy, other brain disorders, and Alzheimer disease were only defined in the International Statistical Classification of Diseases and Related Health Problems, Tenth Revision. These analyses were therefore restricted to the 1994-2014 period.