Assessment of Mental Health in Healthcare Workers Involved in Care of Victims of the 2017 Las Vegas Mass Shooting.

Work-related stress was significantly associated with symptoms of depression in healthcare workers who cared for Las Vegas mass shooting victims.

• Association with BDI-II depression measure was significant at P < .001, accounting for 22.9% of variance
• Association with PHQ-9 depression measure was significant at P < .05, accounting for 20.5% of variance
• Surveys were administered between October 15, 2022 and March 15, 2023, approximately five years after the shooting
• The Health & Safety Executive Management Standards Indicator Tool was used to measure work-related stress

Work-related stress was significantly associated with PTSD symptoms in healthcare workers who cared for Las Vegas mass shooting victims.

• Association with PTSD symptoms was significant at P < .001, accounting for 26.8% of variance
• PTSD was assessed using the PTSD Checklist for DSM-5
• This association represented the largest variance explained among the mental health outcomes measured

No significant differences in symptom severity were found between healthcare workers involved in critical care versus non-critical care.

• No significant differences were found for work-related stress, anxiety, depression, or PTSD between critical and non-critical care groups (P > .05)
• This finding applied across all four mental health and stress measures assessed
• The sample included 50 healthcare workers across both critical and non-critical care roles

Healthcare workers reported higher symptoms of depression compared to normative data from the general population.

• Healthcare workers' mean depression score was 5.18 compared to 2.91 in normative general population data (P < .001)
• Depression was measured using both BDI-II and PHQ-9 instruments

Healthcare workers reported lower symptoms of anxiety compared to normative data from the general population.

• Healthcare workers' mean anxiety score was 8.84 compared to 22.35 in normative general population data (P < .05)
• Anxiety was measured using the Beck Anxiety Inventory

The study surveyed healthcare workers involved in care of victims of the 2017 Las Vegas Route 91 Harvest Festival mass shooting, which was the largest mass shooting in US history at the time.

• The shooting resulted in 58 people killed and 413 wounded by gunshot or shrapnel
• Surveys were distributed to 170 healthcare workers with a 29.4% response rate, yielding 50 respondents
• Respondents were 68% female, aged 29-71 years
• Instruments used included the Beck Anxiety Inventory, BDI-II, PHQ-9, PCL-5, and the HSE Management Standards Indicator Tool