Psychiatric Risk Factors and Burn Severity in Self-immolation

Self-immolation, a form of self-harm involving setting oneself on fire, is associated with high mortality, morbidity, and healthcare burden. This study aimed to characterize potential clinical correlates and predisposing factors for self-immolation based on burn severity using TBSA percentage scoring. Additional objectives included identifying motivational elements, associated risk factors, and clinical characteristics to optimize patient care and reduce future self-immolation incidents. A retrospective review of admissions to the Arizona Burn Center from July 2015 to August 2022 identified 103 self-immolation patients for the study. Burn severity was categorized as mild to moderate (TBSA < 20%) or severe (TBSA ≥ 20%) based on TBSA. This study population had a mortality rate of 21%. Positive urine drug screens were found in 44% of subjects, and 63% having chronic substance use, with methamphetamine (37%) and alcohol (30%), being the most prevalent. Underlying psychiatric illnesses were present in 83% of patients. Suicidal intent strongly predicted severe burns (P < .001) among the 68 severe burn cases identified. In conclusion, this study emphasizes that the presence of suicidal intent among self-immolation patients significantly correlates with burn severity. These findings highlight the importance of involving psychiatric services early in patient care to improve outcomes and reduce the recurrence of self-immolation acts.