Interpersonal Victimization and Post-Traumatic Stress Among Transgender and Gender Expansive People: A Systematic Review

Background: Transgender and gender expansive (TGE) people experience high rates of interpersonal victimization, which has been linked to high rates of post-traumatic stress disorder (PTSD, a highly disabling and under-studied mental illness among TGE people). This systematic review identifies, classifies, critically appraises, and synthesizes the peer-reviewed literature describing the association between interpersonal victimization and post-traumatic stress among TGE people. This review collates what is known about the associations between victimization and PTSD among TGE people and makes recommendations to guide future research and intervention development. Methods: Searches were conducted across five databases (PubMed, Embase, Web of Science, PsycInfo, and CINAHL) following PRISMA guidelines. Inclusion criteria were: English language; peer-reviewed original research; articles describing the association between victimization and PTSD among TGE youth or adults; reporting TGE-specific data. Exclusion criteria were: reviews, commentaries without original data, dissertations or theses, conference abstracts, animal studies, studies without TGE-specific findings, and case studies. Quality appraisal was completed for all studies, which included a discussion of bias. Data extraction was completed by two independent authors, and conflicts were resolved by a third. Data were stratified by gender identity, race or ethnicity, and type of violence for further synthesis. Results: 25 studies were evaluated for design, measure quality, and key findings. Findings were highly consistent across studies: multiple forms of interpersonal violence (e.g., childhood maltreatment, sexual violence, intimate partner violence, and transgender-specific victimization) were significantly associated with PTSD symptom severity or diagnosis across diverse identities and geographic contexts. All studies examining childhood sexual abuse reported significant associations with PTSD outcomes, highlighting early life as a critical period of vulnerability. Samples were disproportionately White and adult, with limited examination of intersectional experiences shaped by race, ethnicity, and socioeconomic status. Discussion: Interpersonal violence-related PTSD among TGE populations reflects a pervasive and systemic pattern of trauma rooted in structural discrimination rather than isolated individual risk. Addressing this inequity requires multilevel prevention and intervention strategies. Future research should prioritize longitudinal designs, culturally responsive measurement tools, and intersectional analyses to inform prevention, clinical care, and policy responses. The majority of studies were cross-sectional designs, so causality cannot be inferred. Additionally, the samples were disproportionately White and adult, which may bias the magnitude of associations reported and limit generalizability to racially and ethnically diverse TGE populations. Although many studies reported race and ethnicity descriptively, none disaggregated violence-related PTSD outcomes by racial or ethnic group within TGE samples, representing a critical limitation for intersectional analysis.