EMDR Therapy Statistics: Success Rates, Sessions, Research and Comparisons
EMDR therapy statistics paint a clear picture of a treatment that has moved from the fringe to the front line of trauma care. Eye movement desensitization and reprocessing (EMDR) is a structured, eight-phase psychotherapy that helps people reprocess distressing memories using bilateral stimulation, such as guided eye movements, taps or tones. It is not hypnosis, and it is not a one-session cure, but it is one of the most studied trauma treatments available today.
Psychologist Francine Shapiro developed EMDR in 1987 and published the first controlled study in 1989. Since then, the research base has grown considerably. Early trials reported that 84% to 90% of single-trauma participants no longer met criteria for post-traumatic stress disorder (PTSD) after just three sessions. In 2023, the U.S. Department of Veterans Affairs and Department of Defense (VA/DoD) gave EMDR a strong recommendation for treating PTSD.
Highlights include EMDR success rates by trauma type, how many sessions EMDR takes, how EMDR compares with cognitive behavioral therapy (CBT) and medication, long-term results and dropout rates, which organizations recommend it, and what the numbers mean for people living in Florida.
Key Findings at a Glance:
84% to 90% (1995): Wilson, Becker and Tinker reported that most single-trauma participants no longer met PTSD criteria after three 90-minute sessions, a strong early signal for brief treatment.
100% and 77% (1997): Kaiser Permanente-funded research by Marcus, Marquis and Sakai is widely cited for showing these remission rates for single-trauma and multiple-trauma participants after six 50-minute sessions.
No 1 of 11 options (2020): Mavranezouli and colleagues ranked EMDR the most cost-effective PTSD treatment among 10 interventions plus no treatment, in an analysis published in PLOS One.
No significant difference (2024): Wright and colleagues found EMDR performed on par with other trauma-focused therapies across 8 randomized controlled trials (RCTs) and 346 patients, including on dropout.
Strong recommendation (2023): the VA/DoD guideline placed EMDR alongside Cognitive Processing Therapy and Prolonged Exposure as a first-line treatment for PTSD.
EMDR Therapy Statistics: Quick Reference
The following EMDR therapy stats offer a quick reference to the most frequently cited figures, each tied to its original source.
Metric | Figure |
EMDR success rate, single trauma (3 sessions) | 84% to 90% (Wilson et al., 1995) |
EMDR success rate, multiple trauma (6 sessions) | 77% (Marcus et al., 1997) |
Combat veterans no longer meeting PTSD criteria (12 sessions) | ~77% (Carlson et al., 1998) |
Cost-effectiveness rank among PTSD options | #1 of 11 (Mavranezouli et al., 2020) |
Average dropout in PTSD therapy trials | 16% (Lewis et al., 2020) |
Success Rates of EMDR by Trauma History
Success rates for EMDR vary depending on what kind of trauma a person experienced, how many sessions they received and how researchers defined "success." Understanding those variables is the key to reading any EMDR success rate accurately.
What does an EMDR therapy success rate actually measure?
Most studies report one of three outcomes. Remission means a person no longer meets the diagnostic criteria for PTSD. Response means symptoms dropped by a clinically meaningful amount, even if some remain. Symptom reduction refers to any measurable improvement on a standardized scale.
These definitions explain why published figures range from 77% to 100%. A study of people with one traumatic event will usually show higher remission than a study of people with years of layered trauma. Sample size matters too, since early EMDR trials often enrolled fewer than 100 participants, which makes percentages more sensitive to small changes.
What is the success rate of EMDR for single versus multiple trauma?
For single-incident trauma, such as a car accident or an assault, the success rate of EMDR is consistently high. Wilson, Becker and Tinker (1995) reported that 84% to 90% of single-trauma participants no longer met PTSD criteria after three 90-minute sessions. Research funded by Kaiser Permanente and led by Marcus, Marquis and Sakai (1997) is widely cited for reporting 100% remission among single-trauma participants after six 50-minute sessions.
The same Kaiser Permanente research reported 77% remission for people with multiple traumas. That figure is lower but still substantial, and it reflects a broader pattern: complex and repeated trauma usually needs more sessions. People with long trauma histories may need additional preparation and stabilization before or alongside trauma reprocessing.
How effective is EMDR for veterans and sexual assault survivors?
Combat trauma is among the hardest forms of PTSD to treat. Carlson and colleagues (1998, Journal of Traumatic Stress) studied 35 combat veterans who received 12 sessions, and the trial is commonly cited for showing that ~77% no longer met PTSD criteria. Gains were generally maintained at the 3-month follow-up.
For sexual assault survivors, Rothbaum (1997) reported that 90% of participants no longer met PTSD criteria after three EMDR sessions. Samples in both studies were small, so the results are best read as strong early evidence rather than a guaranteed outcome.
Group | Sessions | Result | Source |
Single trauma | 3 | 84% to 90% no longer met PTSD criteria | Wilson et al., 1995 |
Single trauma | 6 | 100% no longer met PTSD criteria | Marcus et al., 1997 |
Multiple trauma | 6 | 77% no longer met PTSD criteria | Marcus et al., 1997 |
Combat veterans | 12 | ~77% no longer met PTSD criteria | Carlson et al., 1998 |
Sexual assault survivors | 3 | 90% no longer met PTSD criteria | Rothbaum, 1997 |
EMDR Session Statistics and Treatment Timelines:
One of the most common questions about EMDR is how quickly it works. The research suggests EMDR can be relatively brief compared with many talk therapies, although timelines depend heavily on a person's trauma history.
How many EMDR sessions does it take to see results?
Across the landmark studies, treatment ranged from 3 sessions for single-incident trauma to 12 sessions for combat-related PTSD. People with a single, clearly defined traumatic memory tend to sit at the lower end of that range.
Real-world care often runs longer than research protocols. Most clinicians spend one or more sessions on history-taking and preparation before reprocessing begins, and people with complex trauma may need several months of treatment. EMDR International Association (EMDRIA) guidance emphasizes that treatment length should be tailored to the individual rather than fixed in advance.
How long is an EMDR session, and what are intensive formats?
Sessions in the cited studies lasted between 50 and 90 minutes. Standard outpatient EMDR typically follows a weekly schedule, which gives clients time to integrate each session.
Some practices also offer intensive formats, in which longer sessions are scheduled over consecutive days. These EMDR intensive therapy sessions can suit people who want to make focused progress in a shorter window, though suitability should be assessed by a trained clinician first.
Trauma type | Typical sessions in studies | Session length | Source |
Single incident | 3 to 6 | 50 to 90 min | Wilson et al., 1995; Marcus et al., 1997 |
Multiple trauma | 6+ | 50 min | Marcus et al., 1997 |
Combat-related | 12 | Standard sessions | Carlson et al., 1998 |
EMDR vs. Other PTSD Treatments: What the Statistics Show
EMDR is rarely evaluated in isolation. Clinicians and patients usually want to know how the EMDR therapy success rate compares with other first-line PTSD treatments and with medication.
Is EMDR more effective than CBT?
The most rigorous recent evidence suggests EMDR and CBT-based trauma therapies perform similarly. Wright and colleagues (2024, Psychological Medicine) pooled individual participant data from 8 RCTs covering 346 patients. They found no significant difference between EMDR and other psychological therapies on PTSD severity, response, remission or dropout.
That finding is good news for people choosing a treatment, because it means EMDR is an equally strong option rather than a second-tier alternative. The choice between them can account for patient preference, availability and the clinician’s assessment.
How does EMDR compare with medication?
A landmark trial by van der Kolk and colleagues (2007, Journal of Clinical Psychiatry) randomized 88 adults with PTSD to EMDR, fluoxetine (a selective serotonin reuptake inhibitor, or SSRI) or a pill placebo for 8 weeks. At the 6-month follow-up, 75% of EMDR participants with adult-onset trauma had reached asymptomatic functioning, compared with 0% of the fluoxetine group.
Participants with childhood-onset trauma also improved with EMDR, though at a lower rate of 33%. The study suggests that EMDR's benefits may continue after treatment ends, while medication gains often depend on ongoing use.
Is EMDR the most cost-effective PTSD treatment?
Mavranezouli and colleagues (2020, PLOS One) modeled costs and quality-adjusted life years (QALYs) for 10 PTSD interventions plus no treatment. EMDR ranked first of 11 options, with the highest probability of being cost-effective at a £20,000 per QALY threshold. The analysis used costs from the National Health Service in England, so U.S. figures may differ.
Treatment | Guideline status | Key finding | Source |
EMDR | Strong (VA/DoD 2023) | Comparable outcomes; most cost-effective of 11 options | Wright et al., 2024; Mavranezouli et al., 2020 |
Cognitive Processing Therapy (CPT) | Strong (VA/DoD 2023) | First-line trauma-focused therapy | VA/DoD, 2023 |
Prolonged Exposure (PE) | Strong (VA/DoD 2023) | First-line trauma-focused therapy | VA/DoD, 2023 |
Fluoxetine (SSRI) | Medication option | 0% asymptomatic at 6 months vs 75% for EMDR (adult-onset) | van der Kolk et al., 2007 |
Long-Term Results and Treatment Dropout
Short-term results matter, but lasting change matters more. This section looks at how well EMDR gains hold up and how often people stop treatment early.
How long do EMDR results last?
Follow-up data are encouraging. Wilson, Becker and Tinker published a 15-month follow-up in 1997 and reported that 84% of participants maintained their gains. In the van der Kolk trial, EMDR participants continued to improve between the end of treatment and the 6-month follow-up.
Among combat veterans, Carlson and colleagues reported that improvements were generally maintained at 3 months. Longer-term trials remain limited, which is one reason researchers continue to call for studies that track outcomes over several years.
How often do people stop EMDR or trauma therapy early?
Dropout is a reality across all forms of PTSD treatment. Lewis and colleagues (2020, European Journal of Psychotraumatology) found an average dropout rate of 16% across RCTs of psychological therapies for PTSD. Imel and colleagues (2013, Journal of Consulting and Clinical Psychology) reported an 18% average across 42 studies.
Read constructively, those figures mean that more than 8 in 10 people complete treatment. Imel's team also found no dropout difference between active treatments in direct comparisons, and Wright's 2024 analysis found the same for EMDR specifically.
Who may respond less strongly to EMDR?
Wright and colleagues identified a few early signals worth noting:
Men were more likely than women to drop out of EMDR treatment.
Unemployed participants showed higher PTSD symptoms after treatment.
The authors described these as tentative indications that need confirmation in larger studies.
Measure | Figure | Source |
Gains maintained at 15 months | 84% | Wilson et al., 1997 |
EMDR asymptomatic at 6 months (adult-onset) | 75% | van der Kolk et al., 2007 |
Average dropout, PTSD therapy RCTs | 16% | Lewis et al., 2020 |
Average dropout, 42 studies | 18% | Imel et al., 2013 |
EMDR vs other therapies, dropout | No significant difference | Wright et al., 2024 |
Research Evidence and Clinical Guidelines:
EMDR's standing today rests on decades of controlled research and endorsements from major health bodies. Still, a credible read of the evidence also acknowledges where it is thin.
Is EMDR therapy evidence-based?
Yes. EMDR is recommended for PTSD by the World Health Organization (WHO), the VA/DoD, the International Society for Traumatic Stress Studies (ISTSS) and the National Institute for Health and Care Excellence (NICE) in the United Kingdom. The American Psychological Association (APA) gave EMDR a conditional recommendation in its 2017 guideline.
The evidence does have gaps. Many early trials had small samples, long-term follow-up studies are relatively scarce, and there is less data for complex trauma and for children than for adults with single-incident PTSD. These gaps signal where research is heading rather than doubts about EMDR's core effectiveness.
Does EMDR work for anxiety, depression and phobias?
Research beyond PTSD is growing, and the signal is promising but mixed. Studies have explored EMDR for panic disorder, specific phobias and depression, often with positive results. However, the evidence base for these conditions is smaller and less consistent than it is for PTSD, so outcomes should be discussed case by case with a trained clinician.
Which EMDR statistics are commonly misquoted?
Several figures circulate online without a clear source. Claims that "7 million people" have been treated with EMDR, or that there are "150,000" EMDR therapists worldwide, rarely link to verifiable data, and some websites list membership counts that differ by a factor of 10. Before trusting any EMDR statistic, check that it names a study or organization, a year and a sample size.
Organization | Year | Recommendation for EMDR |
VA/DoD | 2023 | Strong recommendation for PTSD |
World Health Organization (WHO) | 2013 | Recommended for adults with PTSD |
NICE (United Kingdom) | 2018 | Recommended for adults with PTSD |
ISTSS | 2018 | Recommended for adults with PTSD |
American Psychological Association (APA) | 2017 | Conditional recommendation |
What the Findings Mean for U.S. Readers:
The strongest evidence concerns PTSD, but the studies differ in who took part, how long treatment lasted and what counted as improvement. The early percentages for single-incident trauma should not be applied automatically to veterans, people with repeated trauma or survivors of sexual assault.
Veterans and people with repeated trauma:
The VA/DoD gives EMDR a strong recommendation for PTSD. Carlson's small combat-veteran study reported that approximately 77% no longer met PTSD criteria after 12 sessions; it is one study, not an expected success rate for every veteran. People with repeated trauma may need more time for assessment, preparation and treatment.
Disaster-related trauma:
Hurricanes, wildfires, floods and other disasters can leave distressing memories and PTSD symptoms in communities across the country. EMDR may be considered when symptoms persist, though the size and quality of disaster-specific studies vary. A clinician should assess the symptoms and discuss appropriate options rather than assuming that every disaster survivor needs EMDR.
Finding appropriate care:
Ask a licensed mental health professional about their EMDR training, experience with your type of trauma, how they assess readiness and how they will track progress. For veterans, VA care is another route to discuss evidence-based PTSD treatment. Session counts from clinical trials are useful reference points, not a fixed treatment plan.
What to Take Away:
EMDR therapy statistics show a treatment with strong results for single-incident trauma, solid outcomes for multiple and combat-related trauma, and effectiveness comparable to the leading CBT-based therapies. It ranked first for cost-effectiveness in a 2020 analysis using English health-system costs and holds a strong VA/DoD recommendation as of 2023. The research also has honest limits: dropout averages 16% to 18% across PTSD therapies, and long-term data are still developing. For people considering care anywhere in the United States, a licensed clinician can help determine whether EMDR fits their symptoms, history and treatment goals.
Frequently Asked Questions
What do EMDR therapy statistics show about its effectiveness?
EMDR therapy statistics show high remission rates, especially for single-incident trauma. Wilson and colleagues reported 84% to 90% remission after three sessions in 1995, and Kaiser Permanente research reported 77% remission for multiple-trauma participants after six sessions. Results vary by trauma type and treatment length.
What is the EMDR success rate for PTSD?
The EMDR success rate for PTSD ranges from about 77% to 100% in landmark studies. Higher rates appear in single-trauma groups, while multiple-trauma and combat groups sit closer to 77%. The exact figure depends on the sample and on how "success" is measured.
What is the success rate of EMDR for complex trauma?
The success rate of EMDR for complex trauma is lower than for single events and usually requires more sessions. Marcus and colleagues reported 77% remission for people with multiple traumas after six sessions. Complex PTSD has fewer large trials, so treatment is typically tailored and may take several months.
Is the EMDR therapy success rate higher than CBT?
No, the evidence suggests they are roughly equal. A 2024 meta-analysis by Wright and colleagues found no significant difference between EMDR and other psychological therapies on severity, remission or dropout. Both are recommended first-line treatments for PTSD.
How many EMDR sessions does it take to see results?
Studies show results in 3 to 12 sessions, depending on trauma history. Single-incident trauma often responds in 3 to 6 sessions, while combat or repeated trauma typically needs 12 or more. Preparation sessions may come first.
How long do EMDR results last?
EMDR results appear durable in follow-up research. Wilson and colleagues reported that 84% of participants maintained gains at 15 months, and van der Kolk's trial found continued improvement at 6 months. Multi-year studies remain limited.
Which organizations recommend EMDR therapy?
EMDR is recommended by the VA/DoD (strong, 2023), the WHO (2013), NICE (2018) and ISTSS (2018). The APA issued a conditional recommendation in 2017. These endorsements place EMDR among the best-supported PTSD treatments.
Where can I find reliable EMDR therapy stats?
Reliable EMDR therapy stats come from peer-reviewed journals, PubMed records and official guidelines from the VA/DoD or WHO. A trustworthy statistic names its study, year and sample size. Be cautious with round numbers that appear without any citation.
Can EMDR make symptoms feel worse before they improve?
Some people feel temporary distress during or after reprocessing sessions. This is why EMDR includes a preparation phase focused on coping and grounding skills before memories are processed. A trained therapist adjusts the pace to keep treatment manageable.
Do these findings apply to people across the United States?
The trials include particular groups and settings, so their percentages should not be treated as a personal prognosis. A licensed mental health professional can discuss how the evidence relates to your circumstances and available care.
This article summarizes published research for educational purposes. Statistics describe study groups and do not guarantee individual results. If you are in crisis, call or text 988 to reach the Suicide and Crisis Lifeline.
Selected Sources and References
Carlson, J. G., et al. (1998). EMDR treatment for combat-related PTSD. Journal of Traumatic Stress, 11(1), 3 to 24.
Imel, Z. E., et al. (2013). Meta-analysis of dropout in treatments for PTSD. Journal of Consulting and Clinical Psychology, 81(3), 394 to 404.
Lewis, C., Roberts, N., Gibson, S., and Bisson, J. (2020). Dropout from psychological therapies for PTSD. European Journal of Psychotraumatology, 11, 1709709.
Marcus, S. V., Marquis, P., and Sakai, C. (1997). Controlled study of treatment of PTSD using EMDR in an HMO setting. Psychotherapy, 34, 307 to 315.
