Table 2.
Characteristics of study in the endpoint
| Total | With insomnia | Without insomnia | P-value | ||||
|---|---|---|---|---|---|---|---|
| Variables | n | % | n | % | n | % | |
| Total | 479,967 | 100.0 | 159,989 | 33.3 | 319,978 | 66.7 | |
| Suicide attempts | < 0.001 | ||||||
| with | 1395 | 0.3 | 1098 | 0.7 | 297 | 0.1 | |
| without | 478,572 | 99.7 | 158,891 | 99.3 | 319,681 | 99.9 | |
| Gender | 0.880 | ||||||
| male | 235,771 | 49.1 | 78,615 | 49.1 | 157,156 | 49.1 | |
| female | 244,196 | 50.9 | 81,374 | 50.9 | 162,822 | 50.9 | |
| Age group (years) | 0.958 | ||||||
| 15–24 | 15,901 | 3.3 | 5330 | 3.3 | 10,571 | 3.3 | |
| 25–44 | 99,058 | 20.6 | 33,030 | 20.6 | 66,028 | 20.6 | |
| 45–64 | 172,650 | 36.0 | 57,504 | 35.9 | 115,146 | 36.0 | |
| ≧65 | 192,358 | 40.1 | 64,125 | 40.1 | 128,233 | 40.1 | |
| Low income | < 0.001 | ||||||
| yes | 11,251 | 2.3 | 6441 | 4.0 | 4810 | 1.5 | |
| no | 468,716 | 97.7 | 153,548 | 96.0 | 315,168 | 98.5 | |
| Catastrophic illness | < 0.001 | ||||||
| yes | 113,150 | 23.6 | 49,914 | 31.2 | 63,236 | 19.8 | |
| no | 366,817 | 76.4 | 110,075 | 68.8 | 256,742 | 80.2 | |
| Urbanization | < 0.001 | ||||||
| high | 150,124 | 31.3 | 41,562 | 26.0 | 108,562 | 33.9 | |
| medium | 205,154 | 42.7 | 65,049 | 40.7 | 140,105 | 43.8 | |
| low | 124,689 | 26.0 | 53,378 | 33.4 | 71,311 | 22.3 | |
| CCI | 2.36 ± 3.82 | 2.97 ± 4.10 | 2.06 ± 3.63 | < 0.001 | |||
| Drug dependence | < 0.001 | ||||||
| yes | 2051 | 0.4 | 1597 | 1.0 | 454 | 0.1 | |
| no | 477,916 | 99.6 | 158,392 | 99.0 | 319,524 | 99.9 | |
| Alcohol dependence | < 0.001 | ||||||
| yes | 7846 | 1.6 | 5674 | 3.5 | 2172 | 0.7 | |
| no | 472,121 | 98.4 | 154,315 | 96.5 | 317,806 | 99.3 | |
| Mental disorders | < 0.001 | ||||||
| yes | 76,322 | 15.9 | 53,537 | 33.5 | 22,785 | 7.1 | |
| no | 403,645 | 84.1 | 106,452 | 66.5 | 297,193 | 92.9 | |
P-value (category variable: Chi-square/Fisher exact test; continue variable: t-test)