Table 1.
Characteristics of the suicide attempt cases and controls for the study population
| Variable | HIDD (target cohort) |
APCD (external cohort) |
||
|---|---|---|---|---|
| Case | Control | Case | Control | |
| No. of patients | 485 | 38 806 | 2053 | 153 433 |
| Sex, N (%) | ||||
| Female | 308 (63.51) | 22 937 (59.11) | 1281 (62.4) | 76 533 (49.88) |
| Male | 177 (36.49) | 15 869 (40.89) | 772 (37.6) | 76 900 (50.12) |
| Age group, N (%) | ||||
| 10–14 years old | 72 (14.85) | 6266 (16.15) | 368 (17.92) | 46 374 (30.22) |
| 15–19 years old | 253 (52.16) | 12 798 (32.98) | 931 (45.35) | 53 184 (34.66) |
| 20–24 years old | 160 (32.99) | 19 742 (50.87) | 754 (36.73) | 53 875 (35.11) |
| Survival time, N (%) | ||||
| >1 year | 122 (25.15%) | – | 418 (20.36) | – |
| >3 years | 22 (4.54%) | – | <11 (<0.54) | – |
| Suicide attempt methods, N (%) | ||||
| Poisoning | 340 (70.1) | – | 1395 (67.95) | – |
| Cutting | 102 (21.03) | – | 546 (26.6) | – |
| Hanging | 9 (1.86) | – | 21 (1.02) | – |
| Firearm | <6 (<1.24) | – | <11 (<0.54) | – |
| Jumping | <6 (<1.24) | – | <11 (<0.54) | – |
| Others | 29 (5.98) | – | >61 (>2.97) | – |
APCD: All-Payer Claims Database.