Characterizing syndemic HIV risk profiles and mHealth intervention acceptability among patients in the emergency department.

Syndemic theory proposes that co-occurring, mutually reinforcing psychosocial challenges (mental health, substance use, minority stress [discrimination/stigma], abuse, unmet basic needs) drive HIV risk behavior and create barriers to care for marginalized populations. It is thus necessary to address this holistic, complex picture in HIV prevention. Emergency department (ED) visits are a prime opportunity to engage key risk groups, given their low engagement in regular clinic-based care and high utilization of drop-in care via EDs. Yet, EDs are overburdened and under-resourced; mHealth may be a vehicle for intervention delivery in this context. This study aimed to 1) characterize demographics, syndemic profiles, and HIV risk behavior among ED patients and 2) assess the acceptability of addressing syndemic issues, particularly via an mHealth approach, in the ED. A sample of N = 198 ED patients with an indication of HIV risk completed a cross-sectional psychosocial assessment. Descriptive statistics and bivariate correlations between syndemic issues were examined. Patients presenting to the ED reported marginalized identities and complex syndemic profiles including mental health issues (77%), at risk substance use (30%), childhood abuse (35%), adult abuse (31%), minority stress (63%), and unmet basic needs (37%). Over half the sample reported at least three syndemic issues (54%). All syndemic issues were significantly correlated with each other, supporting a synergistic nature. The sample reported indicators of HIV risk including lack of PrEP awareness (33%)/uptake (94%), condomless sex (37%), and not testing for HIV (41%). Majority reported syndemic profiles have never been addressed in the ED (71%), think it would be helpful (88%), and willing to utilize mHealth during an ED visit (76%). The current study provides information to guide next steps for ED-based point-of-care HIV prevention, and more broadly, working towards equitable HIV prevention services reaching those missed by existing interventions.