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1. Tarrier, N., Liversidge, T., & Gregg, L. (2006, November). The acceptability and preference for the psychological treatment for PTSD. Behaviour Research and Therapy, 44(11), 1643-1656. doi:10.1016/j.brat.2005.11.012.

Language: English

Format: Journal

Abstract:
The acceptability and preference of psychological treatments is important in understanding patient treatment seeking, choice, engagement and attrition and possibly treatment response in health care. The acceptability of, and preference for, 14 different types of psychological treatment for PTSD were investigated in a student population through invitation to participate in a web-based survey. Respondents were asked to rate each treatment on 10 scales and to rank the treatments in order of preference. Respondents were also asked whether they would seek treatment themselves, recommend treatment to friends and family, feel stigmatised by suffering from PTSD, had any prior knowledge of the treatments and if this had been positive or negative, and whether they had a history of psychological problems or treatment. A total of 330 respondents completed the survey. A past or current history of psychological problems and treatment was surprisingly high. Almost all respondents indicated that they would seek or recommend treatment in spite of high levels of stigmatisation. Factor analysis of the 10 scales indicated two factors: Endorsement and Discomfort. Rank ordering on preference and Endorsement scores was highly consistent. The highly preferred and endorsed treatments involved cognitive therapy, exposure, or psycho-education in spite of high levels of discomfort anticipated with exposure. Treatments involving new technologies, EMDR, and psychodynamic psychotherapy received the lowest Endorsement and preference. There was a modest influence of prior knowledge of a treatment. [Author Abstract]

Keywords: Cognitive-Behaviour Therapy  Cognitive Therapy  Exposure Therapy  College Students  Computer Assisted Psychotherapy  Empirical Study  Family Therapy  Group Psychotherapy  Posttraumatic Stress Disorder  Preference  Psychoanalytic Psychotherapy  Psychological Treatment  Psychotherapeutic Processes  PTSD  Quantitative Study  Relaxation Therapy  Treatment Acceptability  Virtual Reality Exposure  Web-Based Survey  

Accuracy Verified: Yes

2. Devilly, G. J. (2004, December). An approach to psychotherapy toleration: The Distress/Endorsement Toleration Scale (DEVS) clinical outcome studies. Journal of Behavior Therapy and Experimental Psychiatry, 35(4), 319-336. doi:10.1016/j.jbtep.2004.08.001.

Language: English

Format: Journal

Abstract:
The issue of treatment tolerance within the field of psychotherapy is, at best, a nebulous construct and has been commonly evaluated via rates of subject attrition and homework compliance. This research presents the psychometric properties of a ten-item scale which endeavours to measure treatment distress and participant endorsement of therapy protocols used in clinical research. Two factors emerged and the subscales of Distress and Endorsement were derived. These subscales displayed good reliability with acceptable inter-item correlations within each subscale. The subscales were also able to differentiate the perspectives of male Vietnam veterans from their spouses on a lifestyle management course at the termination of intervention. However, this scale also displayed a cognitive behavioural trauma treatment protocol and eye movement desensitisation and reprocessing to be equivalent in treatment distress and participant endorsement in the treatment of PTSD. Preliminary findings suggest that the relationship between these two subscales and outcome may, to some extent, be population specific. First evidence suggests that intervention distress ratings may be influenced by severity of presentation, whilst endorsement ratings are more influenced by symptomatic improvement over time. Suggestions for future research are presented and the full questionnaire is attached as an appendix. [Author Abstract]

Keywords: Adults  Australians  Cognitive Therapy  Distress  Family Therapy  Endorsement  Females  Males  Outcome  Psychotherapeutic Processes  Questionnaire  Self Report Instruments  Spouses  Tolerance  Treatment  Treatment Effectiveness  Veterans  Vietnam War  

Accuracy Verified: Yes

3. Grimmett, J. (2012). Clinician experiences with EMDR: Factors influencing attrition and retention. University of the Rockies, Colorado Springs. UMI 3517361.

Language: English

Format: Dissertation/Thesis

Abstract:
This study investigated factors contributing to clinician attrition from eye movement desensitization and reprocessing therapy. The primary areas under investigation were factors contributing to attrition and retention, as well as the quest to obtain information pertaining to training experiences. A sample of 239 clinicians was purposefully obtained. Several patterns emerged within the data, highlighting the issues of attrition: Loyalty to other treatment modalities and discomfort with using EMDR, either through lack of confidence, inadequate training, or discomfort with client distress, were both correlated with clinician attrition. Treatment efficacy and ongoing consultation were remarkable for retention. Practice setting surfaced as statistically significant, and operating in private practice was positively correlated with greater participation in EMDR support activities. Additionally, the adequacy of the training format was presented, as well as how prepared the participants felt after completion of EMDR training. A number of findings were consistent with earlier studies and the converging results of loyalty to previous modalities and discomfort using EMDR gave rise to recommendations for future training and support of newly trained clinicians. The limitations of the current study were presented, in addition to directions for future research.

Keywords: Attrition  Clinician Experiences  Retention  Training  

Accuracy Verified: Yes

4. Grimmett, J., Hartung, J., Galvin, M. D., & Gray, S. (2012, October). Clinician experiences with EMDR: Factors influencing attrition and retention. Poster presented at the annual meeting of the EMDR International Association, Arlington, VA.

Language: English

Format: Conference

Abstract:
Over 70,000 clinicians worldwide have participated in extensive EMDR training in the past 20 years, but, as with other therapies, not all trained clinicians continue to practice newly acquired techniques.
Whether or not a clinician uses a given treatment modality seems to be a complicated issue, the literature can be organized along the lines of five themes: (a) therapists' pre-training factors, (b) the training itself, (c) clients' experiecnes before and during EMDR, (d) post-training skill development, and (e) socio-enviromental contributors to therapist attrition and retention

Keywords: Attrition  Clinician Experiences  Retention  Training  

Accuracy Verified: Yes

5. van Etten, M. L., & Taylor, S. (1998). Comparative efficacy of treatments for posttraumatic stress disorder:  A meta-analysis. Clinical Psychology and Psychotherapy, 5(3), 126-144. doi:10.1002/(SICI)1099-0879(199809).

Language: English

Format: Journal

Abstract:
A meta-analysis was conducted on 61 treatment outcome trials for PTSD. Conditions included drug therapies (TCAs, carbamazepine, MAOIs, SSRIs, and BDZs), psychological therapies (behaviour therapy, Eye-Movement Desensitization and Reprocessing (EMDR), relaxation training, hypnotherapy, and dynamic therapy), and control conditions (pill placebo, wait-list controls, supportive psychotherapies, and non-saccade EMDR control). Psychological therapies had significantly lower drop-out rates than pharmacotherapies (14% versus 32%), with attrition being uniformly low across all psychological therapies. In terms of symptom reduction, psychological therapies were more effective than drug therapies, and both were more effective than controls. Among the drug therapies, the SSRIs and carbamazepine had the greatest effect sizes, although the latter was based upon a single trial. Among the psychological therapies, behaviour therapy and EMDR were most effective, and generally equally so. The most effective psychological therapies and drug therapies were generally equally effective. Differences across treatment conditions were generally evident across symptom domains, with little matching of symptom domain to treatment type. However, SSRIs had some advantage over psychological therapies in treating depression. Follow-up results were not available for most treatments, but available data indicates that treatment effects for behaviour therapy and EMDR are maintained at 15-week follow-up. [Author Abstract]

Keywords: Antimanic Drugs  Benzodiazepine Derivatives  Hypnotherapy  Meta Analysis  Monoamine Oxidase Inhibitors  Posttraumatic Stress Disorder  Psychoanalytic Psychotherapy  PTSD  Relaxation Therapy  Selective Serotonin Reuptake Inhibitors  Treatment Effectiveness  Tricyclic Derivatives  

Accuracy Verified: Yes

6. Taylor, S., Thordarson, D., Maxfield, L., Fedoroff, I., Lovell, K., & Ogrodniczuk, J. (2003, April). Comparative efficacy, speed, and adverse effects of three PTSD treatments:  Exposure therapy, EMDR, and relaxation training. Journal of Consulting & Clinical Psychology, 71(2), 330-338. doi:10.1037/0022-006X.71.2.330.

Language: English

Format: Journal

Abstract:
The authors examined the efficacy, speed, and incidence of symptom worsening for 3 treatments of PTSD: prolonged exposure, relaxation training, or eye movement desensitization and reprocessing (EMDR; N = 60). Treatments did not differ in attrition, in the incidence of symptom worsening, or in their effects on numbing and hyperarousal symptoms. Compared with EMDR and relaxation training, exposure therapy (a) produced significantly larger reductions in avoidance and reexperiencing symptoms, (b) tended to be faster at reducing avoidance, and (c) tended to yield a greater proportion of participants who no longer met criteria for PTSD after treatment. EMDR and relaxation did not differ from one another in speed or efficacy (Pilots).

Keywords: Adults  Empirical Study  Exposure Therapy  Negative Therapeutic Reaction  Posttraumatic Stress Disorder  PTSD  Random Clinical Trial  RCT  Relaxation Therapy  Stressors  Survivors  Treatment Effectiveness  Witnesses  

Accuracy Verified: Yes

7. ter Heide, F. J. J., Mooren, T. M., Kleijn, W., de Jongh, A., & Kleber, R. J. (2011, August). EMDR versus stabilisation in traumatised asylum seekers and refugees: Results of a pilot study. European Journal of Psychotraumatology, 2, 5881. doi:10.3402/ejpt.v2i0.5881.

Language: English

Format: Journal

Abstract:
Background: Traumatised asylum seekers and refugees are clinically considered a complex population. Discussion exists on whether with this population treatment guidelines for post-traumatic stress disorder (PTSD) should be followed and Trauma-Focused Cognitive-Behavioural Therapy (TF-CBT) or Eye Movement Desensitisation and Reprocessing (EMDR) should be applied, or whether a phased model starting with stabilisation is preferable. Some clinicians fear that trauma-focused interventions may lead to unmanageable distress or may be ineffective. While cognitive-behavioural interventions have been found to be effective with traumatised refugees, no studies concerning the efficacy of EMDR with this population have been conducted as yet. Objective: In preparation for a randomised trial comparing EMDR and stabilisation with traumatised refugees, a pilot study with 20 participants was conducted. The objective was to examine feasibility of participation in a randomised trial for this complex population and to examine acceptability and preliminary efficacy of EMDR. Design: Participants were randomly allocated to 11 sessions of either EMDR or stabilisation. Symptoms of PTSD (SCID-I, HTQ), depression and anxiety (HSCL-25), and quality of life (WHOQOL-BREF) were assessed at pre- and post-treatment and 3-month follow-up. Results: Participation of traumatised refugees in the study was found feasible, although issues associated with complex traumatisation led to a high pre-treatment attrition and challenges in assessments. Acceptability of EMDR was found equal to that of stabilisation with a high drop-out for both conditions. No participants dropped out of the EMDR condition because of unmanageable distress. While improvement for EMDR participants was small, EMDR was found to be no less efficacious than stabilisation. Different symptom courses between the two conditions, with EMDR showing some improvement and stabilisation showing some deterioration between pre-treatment and post-treatment, justify the conduct of a full trial. Conclusion: With some adaptations in study design, inclusion of a greater sample is justifiable to determine which treatment is more suitable for this complex population.

Keywords: Asylum Seekers  Refugees  Posttraumatic Stress Disoder  PTSD  TF-CBT  Trauma-Focused Cognitive-Behavioural Therapy  

Accuracy Verified: Yes

8. Capps, F., Andrade, H., & Cade, R. (2005). EMDR: An approach to healing betrayal wounds in couples counseling. In G. R. Walz & R. K. Yep (Eds.), VISTAS: Compelling Perspectives on Counseling (pp. 107-110). Alexandria, VA: American Counseling Association.

Language: English

Format: Book Section

Abstract:
Since its introduction by Francine Shapiro in 1989, eye movement desensitization and reprocessing (EMDR) has gained wide acceptance as an efficacious clinical treatment. It is particularly useful in the treatment of posttraumatic stress disorder (PTSD) (Alto, 2001). Despite its relative novelty, EMDR has been used to treat survivors, emergency workers, and disaster relief counselors worldwide. EMDR therapists have successfully employed EMDR in Oklahoma City, Belfast, Zagreb, Rwanda, Dunblane, Sarajevo, Columbine, and Londonderry. EMDR has also been used in the treatment of PTSD for combat veterans from World War II, the Korean War, Beirut, and the Vietnam War (Silver & Rogers, 2002, p. xix). EMDR effects exceed those of nonspecific effects shared by all treatments and are independent of client expectations. Moreover, EMDR effects are at least equal to effects of cognitive behavioral therapy, and EMDR requires less time than other models with less client attrition (Silver & Rogers, p. 254). Importantly, the American Psychological Association has listed EMDR as an efficacious treatment for civilian PTSD (Alto, 2001).

Keywords: Betrayal Wounds  Couples Counselling  Couples Therapy  

Accuracy Verified: Yes

9. Taylor, S. (2003, October-November). Exposure therapy, EMDR and relaxation. In M. Creamer (Chair), PTSD treatment outcome predictors. Symposium conducted at the 19th annual meeting of the International Society for Traumatic Stress Studies, Chicago, IL .

Language: English

Format: Conference

Abstract:
Several psychosocial treatments appear to be effective in treating posttraumatic stress disorder (PTSD). However, little is known about the predictors of treatment outcome. It is possible that some variables predict poor outcome for some treatments but not for others. To investigate this issue, outcome predictors were examined for three 8-session treatments: Exposure therapy (entailing prolonged imaginal and in vivo exposure), relaxation training, and eye movement desensitization and reprocessing (EMDR). Sixty people with PTSD entered and 45 completed treatment. To our knowledge, ours was the first EMDR study to meet all the Foa and Meadows Gold Standards for methodologically sound outcome research. Treatments did not differ in attrition or perceived credibility. Predictors of treatment outcome in PTSD: While psychological treatments for PTSD have developed considerably in recent years, large variation in individual treatment response is apparent. This symposium integrates research from the USA, Canada, and Australia to examine the impact of personal characteristics, childhood abuse history, and treatment setting as predictors of response to cognitive behavioral interventions.

PTSD treatment outcome predictors: Exposure therapy, EMDR and relaxation: Exposure tended to be most effective, and EMDR and relaxation did not differ in efficacy. Low patient ratings of treatment credibility (assessed in session 2) predicted treatment dropout, regardless of treatment type. Of the potential outcome predictors examined, severe reexperiencing symptoms (assessed prior to treatment) predicted poor outcome for relaxation training but not for the other therapies. The best predictor of treatment outcome was whether or not patients received exposure therapy.

Keywords: Exposure Therapy  PSTD Outcome Predictors  Relaxation  Symposium  

Accuracy Verified: Yes

10. Shepherd. J., & Stein, K. (1998). Eye movement desensitization and reprocessing in the treatment of post traumatic stress disorder. Development and Evaluation Committee (Report No. 91). Bristol, UK: South and West Regional Health Authority [Southampton]: Wessex Institute for Health Research and Development.

Language: English

Format: Publication

Abstract:
Objective/Purpose: Eye Movement Desensitization and Reprocessing (EMDR) is a relatively new form of psychotherapy designed to alleviate symptoms of anxiety, depression, avoidance of trauma related thoughts and intrusive memories associated with Post Traumatic Stress Disorder (PTSD). Under therapist instruction, the patient makes rhythmic eye movements while imagining the traumatic event, designed to facilitate cognitive reprocessing to alleviate stress. Methods: Electronic searching of Medline, PsyClit, Health Star, CCTR, The National Research Register and a range of other databases was conducted. Once trials had been identified, data were extracted and methodological quality assessed. Cost-utility was estimated indirectly through consultation with expert clinicians. Costs per Quality Adjusted Life Year (QALY) gained were also calculated. Results: 12 randomised controlled trials (RCTs) were identified, comparing EMDR to alternative psychotherapy treatments; variants of EMDR; and to delayed treatment groups in various combinations. The trials are generally small, with partial blinding of outcome assessors, and in some cases with high attrition. Results suggest the EMDR may be effective at reducing symptoms up to 3 months after treatment in comparison to delayed treatment groups. Two studies suggest that EMDR is as effective as other psychotherapy treatments for PTSD, and 3 claim greater effectiveness. Cost per QALY ranged from Pounds 983 to Pounds 20,568. CONCLUSIONS: Further trials are needed with larger samples, and longer post-intervention measurement to assess maximum length of treatment effect, as well as to ascertain the effectiveness of different treatment components.

Keywords: Posttraumatic Stress Disorder  PTSD  Therapy  

Accuracy Verified: Yes

11. Taylor, S. (2003, Summer). Outcome predictors for three PTSD treatments:  Exposure therapy, EMDR, and relaxation training. Journal of Cognitive Psychotherapy, 17(2), 149-162. doi:10.1891/jcop.17.2.149.57432.

Language: English

Format: Journal

Abstract:
Several psychosocial treatments appear to be effective in treating PTSD. However, little is known about the predictors of treatment outcome. It is possible that some variables predict poor outcome for some treatments but not for other treatments. To investigate this issue, outcome predictors were investigated for three 8-session treatments: exposure therapy (entailing prolonged imaginal and in vivo exposure), relaxation training, and eye movement desensitization and reprocessing (EMDR). 60 people with PTSD entered and 45 completed treatment. Treatments did not differ in attrition or perceived credibility. Exposure tended to be most effective, and EMDR and relaxation did not differ in efficacy. A number of clinical and cognitive variables were examined to identify predictors of treatment dropouts as well as predictors of the likelihood that patients would be remitted from PTSD after treatment. These analyses were conducted by controlling for treatment condition. Low patient ratings of treatment credibility (assessed in session 2) predicted treatment dropout, regardless of treatment type. Severe reexperiencing symptoms (assessed prior to treatment) predicted poor outcome for relaxation training but not for the other therapies. These findings suggest that treatment outcome could be improved by improving treatment credibility. The findings also support the use of exposure therapy and, to a lesser extent, the use of EMDR in treating PTSD. [Author Abstract]

Keywords: Adults  Brief Psychotherapy  Disability Evaluation  Empirical Study  Exposure Therapy  Follow-up Study  Insurance  Legal Processes  Manual-Based Treatments  Quantitative Study  Relaxation Therapy  Posttraumatic Stress Disorder  PTSD  Random Clinical Trial  Reexperiencing  RCT  Social Security  Stressors  Survivors  Treatment Dropouts  Treatment Effectiveness  Treatment Outcome/Clinical Trial  

Accuracy Verified: Yes

12. Alley, A., Spinazzola, J., Blaustein, M., & van der Kolk, B. A. (2005, November). Pretreatment attrition in a PTSD comparative treatment outcome study. Poster presented at the 21st annual meeting of the International Society for Traumatic Stress Studies, Toronto, ON.

Language: English

Format: Conference

Abstract:
Treatment attrition represents a considerable problem for effective delivery of care for PTSD. While treatment attrition during the course of treatment is well researched, little is known about the factors that affect sample selection before the beginning of a study. Previous research on other Axis I disorders indicates that patients may refuse participation more often because of study medication than because of psychosocial treatment. The present study examines traits and predictors of pretreatment attrition from a study of PTSD that compared treatment outcomes for fluoxetine versus EMDR. Potential study participants were screened over the telephone for study eligibility. During the telephone screen, a total of 394 people met study eligibility requirements but declined participation (59% of total eligible participants). While a variety of factors were cited for declining study participation, consistent with previous research, refusal of study medication emerged as the pre-dominant reason for pretreatment attrition (49%). Results are discussed in terms of how treatment preferences and other pretreatment attrition factors may impact the external validity of comparative treatment outcome studies. Clinical implications discussed include the potential for pretreatment attrition factors to interfere with trauma survivors’ ability to seek and obtain effective treatment

Keywords: Comparative Treatment Outcome Study  Poster  Pretreatment Attrition  Posttraumatic Stress Disorder  PTSD  

Accuracy Verified: Yes

13. Gillies, D., Taylor, F., Gray, C., O’Brien, L., & D’Abrew, N. (2012). Psychological therapies for the treatment of post-traumatic stress disorder in children and adolescents (Review). Cochrane Database of Systematic Reviews (Online), 12, CD006726. doi:10.1002/14651858.CD006726.pub2.

Language: English

Format: Journal

Abstract:
Background: Post-traumatic stress disorder (PTSD) is highly prevalent in children and adolescents who have experienced trauma and has high personal and health costs. Although a wide range of psychological therapies have been used in the treatment of PTSD there are no systematic reviews of these therapies in children and adolescents. Objectives: To examine the effectiveness of psychological therapies in treating children and adolescents who have been diagnosed with PTSD. Search methods: We searched the Cochrane Depression, Anxiety and Neurosis Review Group’s Specialised Register (CCDANCTR) to December 2011. The CCDANCTR includes relevant randomised controlled trials fromthe following bibliographic databases: CENTRAL (the Cochrane Central Register of Controlled Trials) (all years), EMBASE (1974 -), MEDLINE (1950 -) and PsycINFO (1967 -). We also checked reference lists of relevant studies and reviews. We applied no date or language restrictions. Selection criteria: All randomised controlled trials of psychological therapies compared to a control, pharmacological therapy or other treatments in children or adolescents exposed to a traumatic event or diagnosed with PTSD. Data collection and analysis: Two members of the review group independently extracted data. If differences were identified, they were resolved by consensus, or referral to the review team. We calculated the odds ratio (OR) for binary outcomes, the standardised mean difference (SMD) for continuous outcomes, and 95% confidence intervals (CI) for both, using a fixed-effect model. If heterogeneity was found we used a random-effects model. Main results Fourteen studies including 758 participants were included in this review. The types of trauma participants had been exposed to included sexual abuse, civil violence, natural disaster, domestic violence and motor vehicle accidents. Most participants were clients of a traumarelated support service. The psychological therapies used in these studies were cognitive behavioural therapy (CBT), exposure-based, psychodynamic, narrative, supportive counselling, and eye movement desensitisation and reprocessing (EMDR). Most compared a psychological therapy to a control group. No study compared psychological therapies to pharmacological therapies alone or as an adjunct to a psychological therapy. Across all psychological therapies, improvement was significantly better (three studies, n = 80, OR 4.21, 95% CI 1.12 to 15.85) and symptoms of PTSD (seven studies, n = 271, SMD -0.90, 95% CI -1.24 to -0.42), anxiety (three studies, n = 91, SMD -0.57, 95% CI -1.00 to -0.13) and depression (five studies, n = 156, SMD -0.74, 95% CI -1.11 to -0.36) were significantly lower within a month of completing psychological therapy compared to a control group. The psychological therapy for which there was the best evidence of effectiveness was CBT. Improvement was significantly better for up to a year following treatment (up to one month: two studies, n = 49, OR 8.64, 95% CI 2.01 to 37.14; up to one year: one study, n = 25, OR 8.00, 95% CI 1.21 to 52.69). PTSD symptom scores were also significantly lower for up to one year (up to one month: three studies, n = 98, SMD -1.34, 95% CI -1.79 to -0.89; up to one year: one study, n = 36, SMD -0.73, 95% CI -1.44 to -0.01), and depression scores were lower for up to a month (three studies, n = 98, SMD -0.80, 95% CI -1.47 to -0.13) in the CBT group compared to a control. No adverse effects were identified. No study was rated as a high risk for selection or detection bias but a minority were rated as a high risk for attrition, reporting and other bias. Most included studies were rated as an unclear risk for selection, detection and attrition bias. Authors’ conclusions: There is evidence for the effectiveness of psychological therapies, particularly CBT, for treating PTSD in children and adolescents for up to a month following treatment. At this stage, there is no clear evidence for the effectiveness of one psychological therapy compared to others. There is also not enough evidence to conclude that children and adolescents with particular types of trauma are more or less likely to respond to psychological therapies than others. The findings of this review are limited by the potential for methodological biases, and the small number and generally small size of identified studies. In addition, there was evidence of substantial heterogeneity in some analyses which could not be explained by subgroup or sensitivity analyses. More evidence is required for the effectiveness of all psychological therapiesmore than one month after treatment.Much more evidence is needed to demonstrate the relative effectiveness of different psychological therapies or the effectiveness of psychological therapies compared to other treatments. More details are required in future trials in regards to the types of trauma that preceded the diagnosis of PTSD and whether the traumas are single event or ongoing. Future studies should also aim to identify the most valid and reliable measures of PTSD symptoms and ensure that all scores, total and sub-scores, are consistently reported.

Keywords: Adolescents  Children  Posttraumatic Stress Disorder  PTSD  Review  

Accuracy Verified: Yes

14. Matthieu, M., & Ivanoff, A. (2006). Treatment of human-caused trauma:  Attrition in the adult outcomes research. Journal of Interpersonal Violence, 12(21), 1654-1664.

Language: English

Format: Journal

Abstract:
Attrition or dropout is the failure of a participant to complete, comply, or the prematurely discontinuation or discharge from treatment, resulting in lost data and affecting outcomes. This review of 10 years of adult posttraumatic stress disorder (PTSD) treatment outcome literature specific to Criterion A events of human origin examines how attrition is defined and addressed, methodologically and statistically. Of the 13 experimental or quasi-experimental studies, 11 report attrition information. Compared to treatment completers, attriters more often had elevated pretest scores on PTSD and other symptom measures. The characteristics of dropouts given the intentional nature of the traumatic events reviewed in this study are shared to inform clinical practice. Recommendations for consistent methods in examining, analyzing, and interpreting treatment outcome data are also discussed.

Keywords: Attrition  Dropout  Posttraumatic Stress Disorder  PTSD  Treatment Outcome  

Accuracy Verified: Yes