MethodsA total of 3486 suicide attempters who visited emergency department were divided into two groups: intent to die(n=1085, 31.1%) and no intent to die(n=2401, 68.9%). Demographic variables, clinical characteristics, and factors related to suicide attempt between the two groups were analyzed.
ResultsSuicide attempters who reported an intent to die were older (46.7 ± 21.7 vs. 40.5 ± 19.3, t=8.460, p < 0.001), had a higher proportion of males (41.1% vs. 33.4%, χ2=19.174, p < 0.001), were more likely to be unemployed (60.6% vs. 51.0%, χ2=26.954, p < 0.001), had lower socioeconomic status (34.1% vs. 23.4%, χ2=44.365, p < 0.001), and experienced more severe depression (76.6% vs. 49.6%, χ2=230.442, p < 0.001), intense emotions (92.9% vs. 80.0%, χ2=91.138, p < 0.001), agitation (45.5% vs. 40.4%, χ2=7.734, p < 0.01), and hopelessness/helplessness (86.1% vs. 60.7%, χ2=221.980, p < 0.001) compared to those who did not report an intent to die. Moreover, suicide attempters who reported an intent to die showed more repetitive/intense/continuous suicide ideation (79.8% vs. 42.8%, χ2=410.830, p < 0.001), a higher rate of multiple attempts (46.5% vs. 41.1%, χ2=8.637, p < 0.005), higher medical risk of death (3.6 ± 1.3 vs. 3.0 ± 1.1, t=15.633, p < 0.001), a higher total risk score (9.5 ± 2.2 vs. 8.3 ± 2.0, t=25.596, p < 0.001), and a lower total rescue score (12.1 ± 2.0 vs. 12.7 ± 1.9, t=8.649, p < 0.001) compared to those who did not report an intent to die. Some circumstantial factors such as planned attempts (19.4% vs. 2.3%, χ2=307.079, p < 0.001), presence of suicide notes (21.3% vs. 9.8%, χ2=83.625, p < 0.001), absence of regret (75.1% vs. 51.2%, χ2=174.849, p < 0.001), and high lethality of suicide methods (18.0% vs. 9.2%, χ2=56.161, p < 0.001) showed statistical significant differences, but some proportions of suicide attempters who did not report an intent to die also exhibited these circumstantial factors.