Pre- and peri-traumatic event stressors drive gender differences in chronic stress-related psychological sequelae: A prospective cohort study of COVID-19 frontline healthcare providers

Abstract

Women are at heightened risk for chronic stress-related psychological sequelae (SRPS), including major depressive disorder (MDD), generalized anxiety disorder (GAD), and posttraumatic stress disorder (PTSD) in response to potentially traumatic events, including the COVID-19 pandemic. However, few studies have examined pre- and peri-event stressors that could account for gender differences in chronic SRPS. To address this gap, we conducted a prospective cohort study of healthcare providers (HCPs) caring for patients with COVID-19 at a large tertiary care hospital in New York City, and measured mental health risk factors and symptoms of MDD, GAD, and PTSD at baseline (April 2020) and at a 7-month follow-up (December 2020). We defined chronic SRPS as the presence of probable MDD, GAD, and/or PTSD at both timepoints. We conducted a mediation analysis to evaluate whether pre- and peri-event stressors explained women's increased risk for chronic SRPS. Among our sample of 786 HCPs, 571 (72.6%) were women. Compared with men, women were twice as likely to have chronic SRPS (18.7% vs. 8.8%, χ2[1] = 11.38, p < 0.001). However, after accounting for pre- and peri-event stressors, being a woman was no longer associated with chronic SRPS (p = 0.58). The pre- and peri-event stressors that accounted for this heightened risk among women included being in a woman-prevalent profession (specifically nursing; estimate = 0.08, SE = 0.04, p = 0.05), pre-pandemic burnout (estimate = 0.11, SE = 0.05, p = 0.04), greater family-related (estimate = 0.09, SE = 0.03, p = 0.004), infection-related (estimate = 0.06, SE = 0.02, p = 0.007), and work-related concerns (estimate = 0.11, SE = 0.03, p < 0.001), and lower leadership support (estimate = 0.07, SE = 0.03, p = 0.005). These findings can inform institutional interventions to mitigate the risk of chronic SRPS among women HCPs.