Healthcare utilization and mental health outcomes among nonfatal shooting assault victims.

Victims of nonfatal shooting (NFS) assaults suffer from emotional and physical trauma; however, little is understood about clinical care utilization patterns among victims. This study examines the healthcare utilization and mental health outcomes before and after an index NFS victimization. A longitudinal dataset of police and clinical data were linked at the individual level to define a cohort of NFS victims with one or more clinical encounter in the 24-months preceding an index NFS injury (N = 2,681) in Indianapolis, Indiana between 2005 and 2018. Mental health was defined using ICD diagnosis codes from any emergency department, inpatient, or outpatient encounter and clinical care utilization was the number of unique encounters within the 24-months preceding and following an index NFS injury. Multivariable logistic regression was conducted to examine factors associated with a mental health diagnosis in the post injury period. Analyses were conducted in October 2021-March 2022. Overall clinical care utilization (Mean: pre = 277.7 (SD 235.3) vs. post = 333.9 (SD 255.1), p < 0.001) and mental health prevalence (14.4% pre vs. 18.8% post, p < 0.001) increased in the 24-months following an index NFS compared to the prior 24-months. Preinjury mental health utilization increased the odds of receiving a mental health diagnosis in the 24-months following an index NFS injury - particularly for Black victims (Odds Ratio 1.69, 95% CI 1.01, 2.85). The findings indicate missed opportunities within the healthcare system to connect NFS victims with needed mental health services, as well as the importance of premorbid connection to mental health care.