Does It Work?

Bottom Line

The TRC evidence base includes randomized controlled trials, a 2024 multi-study systematic review, 20-plus years of outcome data from the original San Francisco program, and an expanding body of data from replicated programs. The 2024 Dekker et al. scoping review concluded that the model’s “therapeutic outcomes are promising,” with consistent findings across the three documented research sites on access to care, PTSD reduction, and engagement with law enforcement. The evidence has real limitations — most rigorous research was conducted at a small number of California programs, and the long-term durability of outcomes beyond treatment completion hasn’t been fully established.

The Randomized Controlled Trials

The most extensively documented evidence comes from the original UCSF Trauma Recovery Center at Zuckerberg San Francisco General Hospital, where researcher Alicia Boccellari and colleagues conducted a randomized trial of injured crime survivors from 2001 to 2006.

Researchers enrolled survivors of violent crime who arrived at San Francisco General Hospital with physical injuries. Half were randomly assigned to TRC services; the other half received standard community mental health referrals. The trial followed both groups over time. TRC clients were significantly less likely to become homeless or suffer from depression than those in the standard care condition. Women at rape crisis centers who were referred to TRC services were much more likely to file police reports than those referred to standard care. TRCs also cost less per client to operate than the standard programs that produced worse outcomes. Subsequent studies at the Long Beach TRC and a Cleveland TRC reached similar conclusions.

A related randomized trial by the UCSF team (Alvidrez, Shumway, Boccellari and colleagues, published 2008) examined whether TRC services reduced disparities in access to victim compensation funds among 541 injured crime survivors. The analysis found significant interactions with age, education, and housing status: TRC services specifically mitigated the compensation access disadvantage for survivors who were under 35, had less than a high school education, or were experiencing homelessness — populations that standard services systematically fail to reach. Among all TRC service recipients, 55.9% filed victim compensation claims, compared to 23.0% receiving standard care.

Multi-Study Systematic Review (2024)

A 2024 UCLA-led systematic review by Annette Dekker and colleagues at UCLA and the University of Michigan examined 12 peer-reviewed studies evaluating TRC programs across three documented research sites. This scoping review is the most recent comprehensive synthesis of the TRC evidence base, as cited in NATRC technical assistance materials.

Key findings:

Access to care: Treatment access rates ranged from 55.7% to 72.3%. Treatment initiation rates ranged from 44.0% to 72.0%. By comparison, non-TRC victim services models have documented treatment initiation rates as low as 3% to 14.7%. The TRC model’s ability to engage survivors in services is its most consistently documented advantage over alternatives.

Mental health outcomes: Among clients who completed at least nine sessions of evidence-based psychotherapy, PTSD criteria were met by 72.6% at session one and 32.2% at session nine — a 40-percentage-point reduction. Depression criteria dropped from 68.6% to 41.6% (a 27-point reduction). Anxiety criteria dropped from 68.3% to 46.1%.

Injury recidivism: Clients completing treatment were less likely to experience injury recidivism (repeat hospitalization for violence-related injuries) compared to those not completing treatment.

Limitations: The review’s 12 studies were conducted at only three sites — the evidence base is positive but geographically concentrated. The researchers note that findings may not generalize uniformly across program types, populations, or geographic contexts. Multi-site randomized trials across a broader range of programs are still needed.

California Outcome Data

California’s statewide TRC network, funded by the California Victim Compensation Board (CalVCB), has published the most extensive statewide outcome dataset. CalVCB reports the following statewide outcomes across its funded TRC network:

Mental health: PTSD symptoms decrease by as much as 38% during TRC treatment. Depression symptoms decline by more than half. More than 9 out of 10 clients reported at treatment end that services helped them feel better emotionally.

Employment: Clients participating in TRC services returned to work at a rate 56% higher than clients receiving standard care.

Law enforcement cooperation: TRC clients were 44% more likely to cooperate with a district attorney to solve crimes than clients in standard care. Among sexual assault victims specifically, TRC clients were 69% more likely to file a police report.

Cost: Each hour of TRC care costs approximately one-third less than standard fee-for-service care, despite TRCs providing a wider range of services, including case management. CalVCB notes that the cost advantage persists despite TRCs providing a wider range of services, including case management.

These figures are self-reported by California’s network of funded programs, not independently evaluated outcomes. They are consistent with the direction of findings from the randomized trials but should be understood as program-level data rather than independently evaluated outcomes.

Long Beach TRC: Ten Years of Data

The Long Beach Trauma Recovery Center at Cal State Long Beach, which opened in 2014 and celebrated its 10th anniversary in 2024, provides one of the richest longitudinal outcome pictures for any TRC program.

Over its first decade, the Long Beach TRC served nearly 12,000 clients — survivors of sexual assault, domestic violence, community violence, and traumatic loss, many of whom were low-income and would not otherwise have had access to mental health care.

In the 2022-23 fiscal year alone, approximately 2,900 clients received care. Of those, about 75% had diagnosable levels of PTSD at the onset of care. Among those who persisted through at least nine therapy sessions, the share with diagnosable PTSD dropped to approximately 44% — a reduction consistent with the findings from the earlier randomized trials and the multi-study systematic review.

Director Bita Ghafoori, who is also a professor of counseling and licensed clinical psychologist at Cal State Long Beach, described the center’s finding plainly: “The services are free. They’re available to the campus community and the community at large — and people get better.”

Hospital Readmission Data

Chicago’s Advocate Trauma Recovery Center, which has operated since 2018 at Christ Hospital in Oak Lawn, provides a different measure of program effectiveness: hospital readmission for violence-related injuries.

Data reported by KXAN found that 20% of violence victims who did not receive TRC services returned to the hospital for violence-related injuries within six months. Among those who participated in TRC services, the hospital readmission rate was 8% — a 60% reduction. The data measures whether TRC services interrupt the cycle of victimization rather than just treating its symptoms.

This figure is self-reported program data from a single Chicago program. It should not be read as universal — other programs have not systematically reported this metric. But it is the most direct available evidence that TRC services reduce the likelihood of repeat violence exposure, and it is directionally consistent with the injury recidivism findings from the AIMS Public Health review.

Atlanta’s Grady Health System TRC

The Grady Health System TRC in Atlanta, the first TRC in the southeastern United States when it opened in 2020, published implementation and reach data covering its first three years of operation (2020-2023).

Researchers screened 3,238 adult patients seeking care at Grady Memorial Hospital for TRC eligibility. Of those screened, 53% (1,712 patients) were eligible for TRC services. Of those eligible, 16.8% completed TRC intake assessments (288 patients). Among intake completers: 84.4% were Black, 58.3% were female, and 47.1% were referred for gunshot wounds.

The Grady study documents the challenge that characterizes TRC programs across the country: a large eligible population, a smaller subset who complete intake, and a smaller subset who complete treatment. The NYU national survey found that 57% of TRC programs run active waitlists, suggesting that demand for services consistently exceeds available capacity across the field.

What the Evidence Shows About Whom the Model Reaches

One of the consistent findings across TRC studies is that the model works specifically well for people traditional services don’t reach. The UCSF randomized trials found that TRC services reduced compensation access disparities for younger survivors, those with less education, and those experiencing homelessness. The Grady data found that 84.4% of clients were Black. Long Beach serves a predominantly low-income, diverse population. Chicago and the other urban programs share similar demographics.

This isn’t incidental. The TRC model was designed for populations that standard victim services fail. The evidence that it works is primarily evidence that it works for those populations. Whether it works equivalently for different populations — more affluent survivors, rural communities, culturally distinct communities with different institutional trust profiles — is less well-documented.

Honest Limitations

Research concentration: The strongest evidence comes from San Francisco, Long Beach, and Cleveland. Most other programs have not published peer-reviewed outcome data. The 2022 NYU national survey found this to be a systemic gap: programs know their services help people, but consistent data collection and independent evaluation are not universal.

Long-term follow-up: Most TRC outcome studies measure improvement at treatment completion or shortly after. The question of whether outcomes hold over months and years — whether the PTSD reduction persists, whether the employment gains are sustained — is less well-documented.

Causal mechanisms: TRC programs typically bundle multiple components: mental health therapy, case management, legal advocacy, financial assistance, transportation, and peer support. The evidence shows the bundle works; it does not isolate which components drive the outcomes. This matters for program design — a city with limited resources deciding how to allocate them within a TRC model cannot easily determine from the existing evidence which elements are most critical to maintain.

Proposition 36 impact on California funding: In November 2024, California voters passed Proposition 36, which reversed some provisions of Proposition 47. Since Proposition 47 savings fund a significant share of California’s TRC grants through the Safe Neighborhoods and Schools Fund, the CalVCB board has flagged that the funding reduction from Proposition 36 may reduce the number of California TRCs supported in future grant cycles. The most developed evidence base in the country is concentrated in a state where the primary funding mechanism has just experienced a meaningful contraction.