Dose-effect relations in time-limited psychotherapy for depression

Two-Part Mixed-Effects Location Scale Models for Health Diary Data

BACKGROUND

The analysis of health diary data has long relied on inferential statistical methods focusing on sample means and ad hoc methods to calculate each individual's variation in health outcomes.

OBJECTIVES

In this paper, an advanced statistical model is applied to daily diary self-reported health outcomes to simultaneously study an individual's likeliness to report an outcome, daily mean intensity level, and variability in daily measures.

METHODS

Using observational, secondary data from 782 adults, we analyzed self-report daily fatigue symptoms, distinguishing between whether an individual reported fatigue and its severity when reported. Self-reported depressed affect and participant characteristics were used as predictors of daily fatigue symptoms.

RESULTS

A higher likeliness to report fatigue correlated with higher mean fatigue severity and greater stability in severity ratings. Higher mean severity correlated with greater stability in severity ratings. Females and those with high depressed affect were more likely to report fatigue. Females and those with high depressed affect reported greater mean severity.

DISCUSSION

The model applied to daily measures allowed for the simultaneous study of an individual's likeliness to report a symptom, daily mean symptom severity, and variability in severity across days. An individual's daily variation in symptom severity was represented as a model parameter that did not contain measurement error that is present in ad hoc methods.

Cognitive behavioral program for the prevention of depression in at-risk adolescents: isolating the effects of dose

The current study estimated effects of intervention dose (attendance) of a cognitive behavioral prevention (CBP) program on depression-free days (DFDs) in adolescent offspring of parents with a history of depression. As part of secondary analyses of a multisite randomized controlled trial, we analyzed the complete intention-to-treat sample of 316 at-risk adolescents ages 13 to 17 years. Youth were randomly assigned to the CBP program plus usual care (n = 159) or to usual care alone (n = 157). The CBP program involved 8 weekly acute sessions and 6 monthly continuation sessions. Results showed that higher CBP program dose predicted more DFDs, with a key threshold of approximately 75% of a full dose in analyses employing instrumental variable methodology to control multiple channels of bias. Specifically, attending at more than 75% of acute phase sessions led to 45.3 more DFDs over the 9-month period after randomization, which accounted for over 12% of the total follow-up days. Instrument sets were informed by study variables and external data, including weather and travel burden. In contrast, conventional analysis methods failed to find a significant dose-outcome relation. Application of the instrumental variable approach, which better controls the influence of confounding, demonstrated that higher CBP program dose resulted in more DFDs. This article is part of a Special Collection on Mental Health.

Expectation focused and frequency enhanced cognitive behavioural therapy for patients with major depression (EFFECT): a study protocol of a randomised active-control trial

INTRODUCTION

The effectiveness of psychotherapy in depression is subject of an ongoing debate. The mechanisms of change are still underexplored. Research tries to find influencing factors fostering the effect of psychotherapy. In that context, the dose-response relationship should receive more attention. Increasing the frequency from one to two sessions per week seems to be a promising start. Moreover, the concept of expectations and its influence in depression can be another auspicious approach. Dysfunctional expectations and the lack of their modification are central in symptom maintenance. Expectation focused psychological interventions (EFPI) have been investigated, primarily in the field of depression. The aim of this study is to compare cognitive behavioural therapy (CBT) once a week with an intensified version of CBT (two times a week) in depression as well as to include a third proof-of-principle intervention group receiving a condensed expectation focused CBT.

METHODS AND ANALYSIS

Participants are recruited through an outpatient clinic in Germany. A current major depressive episode, diagnosed via structured clinical interviews should present as the main diagnosis. The planned randomised-controlled trial will allow comparisons between the following treatment conditions: CBT (one session/week), condensed CBT (two sessions/week) and EFPI (two sessions/week). All treatment arms include a total dose of 24 sessions. Depression severity applies as the outcome variable (Beck Depression Inventory II, Montgomery Asberg Depression Rating Scale). A sample size of n=150 is intended.

ETHICS AND DISSEMINATION

The local ethics committee of the Department of Psychology, Philipps-University Marburg approved the study (reference number 2020-68 v). The final research article including the study results is intended to be published in international peer-reviewed journals.

TRIAL REGISTRATION NUMBER

German Clinical Trials Registry (DRKS00023203).

The psychometric properties of PSYCHLOPS, an individualized patient-reported outcome measure of personal distress

OBJECTIVE

Few studies report the psychometric properties of individualized patient-reported outcome measures (I-PROMs) combining traditional analysis and Item Response Theory (IRT).

METHODS

Pre- and posttreatment PSYCHLOPS data derived from six clinical samples (n = 939) were analyzed for validity, reliability, and responsiveness; caseness cutoffs and reliable change index were calculated. Exploratory and confirmatory factor analyses were used to determine whether items represented a unidimensional construct; IRT examined item properties of this construct.

RESULTS

Values for internal consistency, construct validity, convergent and discriminant validity, and structural validity were satisfactory. Responsiveness was high: Cohen's d, 1.48. Caseness cutoff and reliable clinical change scores were 6.41 and 4.63, respectively. IRT analysis confirmed that item scores possess strong properties in assessing the underlying trait measured by PSYCHLOPS.

CONCLUSION

PSYCHLOPS met the criteria for norm-referenced measurement of patient psychological distress. PSYCHLOPS functioned as a measure of a single latent trait, which we describe as "personal distress."

Repeated assessments of depressive symptoms in randomized psychosocial intervention trials: best practice for analyzing symptom change over time

OBJECTIVE

Psychotherapy randomized trials rarely have tested for the best fitting model for time effects. We examined the fit of different statistical models for examining time when repeated assessments of depressive symptoms are the primary outcome.

METHOD

We used data from three studies comparing psychotherapy treatments for major depressive disorder. Outcome measures were self-report ratings for Study 1 (N = 237) and Study 2 (N = 100) and clinician ratings for Study 3 (N = 120) of depressive symptoms measured at every session (Studies 1 and 2) or monthly (Study 3). We examined the fit of the following time patterns: linear, quadratic, cubic, log transformation of time, piece-wise linear, and unstructured.

RESULTS

In Study 1, a log-linear model had the best fit (Δ Akaike information criterion [AICc] = 7.5). In Study 2, all models had essentially no support (Δ AICcs > 10) in comparison to the best fitting model, which was the unstructured model. In Study 3, the cubic model had the best fit, but it was not significantly better than a log-linear (Δ AICc = 3.5) or unstructured model (Δ AICc = 2.5).

CONCLUSIONS

Trials should routinely compare different time models, including an unstructured model, when repeated measures of depressive symptoms are the primary outcome.

The Effectiveness of 6 versus 12 Months of Dialectical Behavior Therapy for Borderline Personality Disorder: A Noninferiority Randomized Clinical Trial

INTRODUCTION

Evidence-based psychotherapies for borderline personality disorder (BPD) are lengthy, posing a barrier to their access. Brief psychotherapy may achieve comparable outcomes to long-term psychotherapy for BPD. Evidence is needed regarding the comparative effectiveness of short- versus long-term psychotherapy for BPD.

OBJECTIVE

The aim was to determine if 6 months of Dialectical Behavior Therapy (DBT) is noninferior to 12 months of DBT in terms of clinical effectiveness.

METHODS

This two-arm, single-blinded, randomized controlled noninferiority trial with suicidal or self-harming patients with BPD was conducted at two sites in Canada. Participants (N = 240, M (SD)age = 28.27 (8.62), 79% females) were randomized to receive either 6 (DBT-6) or 12 months (DBT-12) of comprehensive DBT. Masked assessors obtained measures of clinical effectiveness at baseline and every 3 months, ending at month 24. DBT-6 and DBT-12 were outpatient treatments consisting of weekly individual therapy sessions, weekly DBT skills training group sessions, telephone consultation as needed, and weekly therapist consultation team meetings.

RESULTS

The noninferiority hypothesis was supported for the primary outcome, total self-harm (6 months: margin = -1.94, Mdiff [95% CI] = 0.16 [-0.14, 0.46]; 12 months: margin = -1.47, Mdiff [95% CI] = 0.04 [-0.17, 0.23]; 24 months: margin = -1.25, Mdiff [95% CI] = 0.12 [-0.02, 0.36]). Results also supported noninferiority of DBT-6 for general psychopathology and coping skills at 24 months. Furthermore, DBT-6 participants showed more rapid reductions in BPD symptoms and general psychopathology. There were no between-group differences in dropout rates.

CONCLUSIONS

The noninferiority of a briefer yet comprehensive treatment for BPD has potential to reduce barriers to treatment access.

A common factors perspective on mindfulness-based interventions

Mindfulness-based interventions (MBIs) have entered mainstream Western culture in the past four decades. There are now dozens of MBIs with varying degrees of empirical support and a variety of mindfulness-specific psychological mechanisms have been proposed to account for the beneficial effects of MBIs. Although it has long been acknowledged that non-specific or common factors might contribute to MBI efficacy, relatively little empirical work has directly investigated these aspects. In this Perspective, I suggest that situating MBIs within the broader psychotherapy research literature and emphasizing the commonalities rather than differences between MBIs and other treatments might help guide future MBI research. To that end, I summarize the evidence for MBI efficacy and several MBI-specific psychological mechanisms, contextualize MBI findings within the broader psychotherapy literature from a common factors perspective, and propose suggestions for future research based on innovations and challenges occurring within psychotherapy research.

Motivation for Meditation and its Association with Meditation Practice in a National Sample of Internet Users

Objectives

There is limited understanding of what motivates people to initiate and sustain a meditation practice. This study investigates initial and current motivations for meditation, demographic variability in motivations, and associations with ongoing and lifetime meditation practice.

Methods

A national sample of internet users were recruited to examine initial and current motivations for meditation practice.

Results

953 participants completed initial screening and 470 (49.3%) reported exposure to meditation practice. 434 (92.3%) completed a follow-up assessment. Participants most frequently reported mental health/stress alleviation as an initial motivation (n = 322, 74.2%) followed by spiritual (n = 122, 28.1%), physical health (n = 69, 15.9%), awakening/enlightenment (n = 64, 14.7%), cultural (n = 51, 11.8%) and other (n = 33, 7.6%). Participants reported a mean of 1.52 (SD = 0.83) initial motivations. Among those currently meditating, a significant increase in the number of motivations was found between initial and current motivations (1.60 [SD = 0.89] and 2.11 [SD = 1.16]), for initial and current motivations, respectively, Cohen's d = 0.45). The number of motivations was positively associated with meditation practice. Initial mental health motivation was found to be negatively associated with current and lifetime meditation practice, whereas spiritual motivation was found to be positively associated.

Conclusions

While meditation started as a tool for spiritual attainment, findings suggest that it is predominantly used in the U.S. for mental health support and to manage stress. Findings suggest that both type and number of motivations may relate to the course of practice.

Measurement-Based and Data-Informed Psychological Therapy

Outcome measurement in the field of psychotherapy has developed considerably in the last decade. This review discusses key issues related to outcome measurement, modeling, and implementation of data-informed and measurement-based psychological therapy. First, an overview is provided, covering the rationale of outcome measurement by acknowledging some of the limitations of clinical judgment. Second, different models of outcome measurement are discussed, including pre-post, session-by-session, and higher-resolution intensive outcome assessments. Third, important concepts related to modeling patterns of change are addressed, including early response, dose-response, and nonlinear change. Furthermore, rational and empirical decision tools are discussed as the foundation for measurement-based therapy. Fourth, examples of clinical applications are presented, which show great promise to support the personalization of therapy and to prevent treatment failure. Finally, we build on continuous outcome measurement as the basis for a broader understanding of clinical concepts and data-driven clinical practice in the future. Expected final online publication date for the Annual Review of Clinical Psychology, Volume 18 is May 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

Effectiveness of Outpatient Rational Emotive Behavior Therapy Over One Decade

OBJECTIVE

The aim of this article was to explore the effectiveness of rational emotive and cognitive-behavioral therapy (REBT) in a clinical setting.

METHODS

This study included 349 patients of the Albert Ellis Institute who sought psychotherapy from 2007 to 2016. Analyses were conducted by using the intent-to-treat principle, and outcomes were measured after three sessions of therapy (to measure early response) and at the end of 20 sessions. Outcome Questionnaire-45 was used to measure patient functioning.

RESULTS

Patients reported significant improvements in their functioning after participating in REBT, with a medium effect size for early response after three sessions of psychotherapy and at the end of the 20 sessions.

CONCLUSIONS

The authors' findings documented that REBT can be effectively transported from a research setting to clinical practice.

A national evaluation of the Irish public health counselling in primary care service- examination of initial effectiveness data

BACKGROUND

The Counselling in Primary Care service (CIPC) is the first and only nationally available public counselling service in the Republic of Ireland. This study provides initial data for the effectiveness of short-term psychotherapy delivered in a primary care setting in Ireland for the first time.

METHOD

A practice-based observational research approach was employed to examine outcome data from 2806 clients receiving therapy from 130 therapists spread over 150 primary care locations throughout Ireland. Pre-post outcomes were assessed using the CORE-OM and reliable and clinically significant change proportions. Binary logistic regression examined the effect of pre therapy symptom severity on the log odds of recovering. Six and 12 month follow up data from a subsample of 276 clients were also analysed using growth curve analysis.

RESULTS

Of 14,156 referred clients, 5356 presented for assessment and 52.3% (N = 2806) consented to participate. Between assessment and post-therapy a large reduction in severity of symptoms was observed- Cohen's d = 0.98. Furthermore, 47% of clients achieved recovery,a further 15.5% reliably improved, 2.7% reliably deteriorated and34.7% showed no reliable improvement. Higher initial severity was associated with less chance of recovering at post-therapy. Significant gains were maintained between assessment and12 months after therapy- Cohen's d = 0.50.

CONCLUSIONS

Outcomes for clients in the CIPC service compared favourably with large scale counselling and psychotherapy services in jurisdictions in the U.K., the U.S.A., Norway and Sweden. This study expands the international primary care psychotherapy research base to include the entire Republic of Ireland jurisdiction.

Acceptability and feasibility of two interventions in the MooDFOOD Trial: a food-related depression prevention randomised controlled trial in overweight adults with subsyndromal symptoms of depression

OBJECTIVES

We report on the acceptability, feasibility, dose-response relationship and adherence of two nutritional strategies to improve mood (multinutrient supplements; food-related behavioural activation (F-BA)) studied in a randomised controlled depression prevention trial (the Multi-country cOllaborative project on the rOle of Diet, Food-related behaviour, and Obesity in the prevention of Depression (MooDFOOD) Trial). We also assessed baseline determinants of adherence and assessed whether better adherence resulted in lower depressive symptoms.

DESIGN

Randomised controlled trial with a 2×2 factorial design conducted between 2015 and 2017.

SETTING

Germany, the Netherlands, UK and Spain.

PARTICIPANTS

Community sample of 1025 overweight adults with elevated depressive symptoms without a current episode of major depressive disorder. Main eligibility criteria included age (18-75 years), being overweight or obese, and having at least mild depressive symptoms, shown by a Patient Health Questionnaire Score of ≥5. A total of 76% of the sample was retained at the 12-month follow-up.

INTERVENTIONS

Daily nutritional supplements versus pill placebo or an F-BA therapy, delivered in individual and group sessions versus no behavioural intervention over a 1-year period.

PRIMARY AND SECONDARY OUTCOME MEASURES

Primary outcome: self-reported acceptability of the interventions.

SECONDARY OUTCOMES

adherence and self-reported depressive symptoms.

RESULTS

Most participants reported that the F-BA was acceptable (83.61%), feasible to do (65.91%) and would recommend it to a friend (84.57%). Individual F-BA sessions (88.10%) were significantly more often rated as positive than group F-BA sessions (70.17%) and supplements (28.59%). There were statistically significant reductions in depressive symptoms for those who both adhered to the F-BA intervention and had a history of depression (B=-0.08, SE=0.03, p=0.012) versus those who had no history of depression. Supplement intake had no effect on depressive symptoms irrespective of adherence.

CONCLUSIONS

F-BA may have scope for development as a depression prevention intervention and public health strategy but further refinement and testing are needed.

TRIAL REGISTRATION NUMBER

NCT02529423.

How much therapy is enough? The dose-response effect and its moderators in a psychology training clinic

OBJECTIVE

The current study aims to sharpen the understanding of the psychotherapy dose-response effect and its moderators in a psychology training clinic.

METHOD

Data were extracted from 58 client records. Weekly Patient Health Questionnaire-9 and Generalized Anxiety Disorder-7, as well as Outcomes Questionnaire-45.2, administered every fifth session, assessed whether clients achieved reliable change (RC) and clinically significant and reliable change (CSR) during treatment. Survival analyses were conducted to determine the sessions required for 50% of the sample to achieve these outcomes. Multilevel Cox frailty regressions were used to investigate client-and-therapy-based moderators.

RESULTS

The median time for 50% of the sample to achieve RC was 8-10 sessions and 11 sessions to achieve initial CSR. Past treatment history was a significant moderator of time to achieve RC.

CONCLUSIONS

From a population perspective, psychotherapy is most beneficial to patients early in treatment. Sharper understanding of the number of sessions required to achieve meaningful change can inform practice in training settings.

suddengains: An R package to identify sudden gains in longitudinal data

Sudden gains are large and stable improvements in an outcome variable between consecutive measurements, for example during a psychological intervention with multiple assessments. Researching these occurrences could help understand individual change processes in longitudinal data. Three criteria are generally used to identify sudden gains in psychological interventions. However, applying these criteria can be time consuming and prone to errors if not fully automated. Adaptations to these criteria and methodological decisions such as how multiple gains are handled vary across studies and are reported with different levels of detail. These problems limit the comparability of individual studies and make it hard to understand or replicate the exact methods used. The R package suddengains provides a set of tools to facilitate sudden gains research. This article illustrates how to use the package to identify sudden gains or sudden losses and how to extract descriptive statistics as well as exportable data files for further analysis. It also outlines how these analyses can be customised to apply adaptations of the standard criteria. The suddengains package therefore offers significant scope to improve the efficiency, reporting, and reproducibility of sudden gains research.

Effectiveness of Briefer Coping-Focused Psychotherapy for Common Mental Complaints on Work-Participation and Mental Health: A Pragmatic Randomized Trial with 2-Year Follow-Up

Purpose The aim of this study was to assess short and long-term effectiveness of brief coping-focused psychotherapy (Brief-PsT) compared with short-term psychotherapy (Short-PsT) on work-participation (WP) and mental health. Both treatments were preceded by group education. Methods All participants were on, or at risk of, sick leave due to common mental complaints. Patients were selected for inclusion in this study based on levels of self-reported symptoms ('some' or 'seriously affected') of anxiety and depression. They were randomized to Brief-PsT (n = 141) or Short-PsT with a more extended focus (n = 143). Primary outcome was the transition of WP-state from baseline to 3 months follow-up. In addition, WP at 12 and 24 months follow-up were assessed. The secondary outcome, clinical recovery rate (CR-rate) was obtained from the Beck Depression and Beck Anxiety Inventories, at 2-year follow-up. In addition, self-reported mental health symptom severity, self-efficacy, subjective health complaints and life satisfaction were assessed. Results At 3 months follow-up, the increase in WP was significantly greater in Brief-PsT than in Short-PsT (p = 0.039). At 3 months, 60% in Brief-PsT and 51% in Short-PsT was at work, partial or full. Thereafter, these differences diminished, 84% and 80% were at work at 2-year follow up. The 2-year follow-up of the secondary outcome measurements was completed by 53% in Brief-PsT and 57% in Short PsT. CR-rate was significantly greater in Brief-PsT compared with the Short-PsT (69% vs. 51%, p = 0.024). Furthermore, there was a greater reduction in the number of subjective health complaints in Brief-PsT (4.0 vs. 1.9 p = 0.012). All other measurements favoured Brief-PsT as well, but did not reach statistical significance. Conclusions Brief coping-focused psychotherapy added to group education for persons with depression or anxiety complaints seemed more effective in enhancing early work participation compared with additional short-term psychotherapy of standard duration with more extended focus. Clinical recovery rate and decline of comorbid subjective health complaints at 2-year follow-up were also in favour of the brief coping-focused program.

The effect of four Immeasurables meditations on depressive symptoms: A systematic review and meta-analysis

The Four Immeasurables Meditations (FIM) intervention have been shown as a promising intervention for reducing depressive symptoms. The current study is a systematic review of FIM intervention effects on depressive symptoms. Among 192 empirical research articles on FIM published before May 2019, 40 independent trials from 35 records measured depressive symptoms. The meta-analysis included 21 randomized controlled trials (RCT; n = 1468) and 16 uncontrolled trials (n = 376). The results supported overall effectiveness of FIM on depressive symptoms (d = 0.38 for RCT and d = 0.87 for uncontrolled trials). Moderator analysis indicated the effects differed across protocols, and effects were smaller in RCT using active control groups. No significant differences were observed for participant type, measures, intervention length, or intervention components. Individual studies found no direct association between meditation practice time and effects, and mindfulness and self-compassion were widely supported as mechanisms of change. Current evidence supports FIM as an effective intervention for reducing depressive symptoms, but additional studies with more rigorous designs using active control groups are needed. Further investigation should be encouraged regarding specific protocols and participants, the contribution of meditation practice, and other mechanisms such as positive emotions.

Case Study of Clinical Behavior Analysis for a 20-Year-Old Client With Emetophobia

This case study illustrates a clinical behavior analytic intervention for a female client with emetophobia, the fear of vomiting. Clinical behavior analysis is a recently developing branch of empirically supported psychotherapy, derived from behavior analysis. This case study presents modified case formulations and changed intervention strategies according to the results of repeated measuring. The intervention was six sessions and three gradual follow-up sessions; the effect of the intervention was monitored by a single-case design. The intervention strategies were changed from symptom-focused interventions, which are based on exposure, to value-focused gradual follow-up sessions. The client’s phobia and depression were alleviated through the intervention and gradual follow-up phases. Moreover, her value-based activities increased through the gradual follow-up phase. The Reliable Change Indexes (RCIs) were calculated to evaluate changes between the intervention and follow-up phases. There were large and clinically significant decreases on measures. The results highlight the utility of repeated measuring and importance of a value-focused approach.

The dose-response effect in routinely delivered psychological therapies: A systematic review

The dose-response effect refers to the relationship between the dose (e.g., length, frequency) of treatment and the subsequent probability of improvement. This systematic review aimed to synthesize the literature on the dose-response effect in routine psychological therapies delivered to adult patients with mental health problems. Twenty-six studies were eligible for inclusion. Different methodological approaches have been used to examine the dose-response effect; including survival analysis, multilevel modelling and descriptive cluster analyses. Replicated and consistent support was found for a curvilinear (log-linear or cubic) relationship between treatment length and outcomes, with few exceptions such as eating disorders and severe psychiatric populations. Optimal doses of psychotherapy in routine settings range between 4 and 26 sessions (4-6 for low intensity guided self-help) and vary according to setting, clinical population and outcome measures. Weekly therapy appears to accelerate the rate of improvement compared to less frequent schedules. Most of the reviewed evidence is from university counselling centres and outpatient psychotherapy clinics for common mental health problems. There is scarce and inconclusive evidence in clinical samples with chronic and severe mental disorders.

Prompt mental health care, the Norwegian version of IAPT: clinical outcomes and predictors of change in a multicenter cohort study

BACKGROUND

Prompt mental health care (PMHC) is a Norwegian initiative, inspired by the English 'Improving Access to Psychological Therapy' (IAPT), aimed to provide low-threshold access to primary care treatment for persons with symptoms of anxiety and depression. The objectives of the present study are to describe the PMHC service, to examine changes in symptoms of anxiety and depression following treatment and to identify predictors of change, using data from the 12 first pilot sites.

METHODS

A prospective cohort design was used. All participants were asked to complete questionnaires at baseline, before each treatment session and at the end of treatment. Effect sizes (ES) for pre-post changes and recovery rates were calculated based on the Patient Health Questionnaire and the Generalized Anxiety Disorder scale. Multiple imputation (MI) was used in order to handle missing data. We examined predictors through latent difference score models and reported the contribution of each predictor level in terms of ES.

RESULTS

In total, N = 2512 clients received treatment at PMHC between October 2014 and December 2016, whereof 61% consented to participate. The changes from pre- to post-treatment were large for symptoms of both depression (ES = 1.1) and anxiety (ES = 1.0), with an MI-based reliable recovery rate of 58%. The reliable recovery rate comparable to IAPT based on last-observation-carried-forward was 48%. The strongest predictors for less improvement were having immigrant background (ES change depression - 0.27, ES change anxiety - 0.26), being out of work at baseline (ES change depression - 0.18, ES change anxiety - 0.35), taking antidepressants (ES change anxiety - 0.36) and reporting bullying as cause of problems (ES change depression - 0.29). Taking sleep medication did on the other hand predict more improvement (ES change depression 0.23, ES change anxiety 0.45).

CONCLUSIONS

Results in terms of clinical outcomes were promising, compared to both the IAPT pilots and other benchmark samples. Though all groups of clients showed substantial improvements, having immigrant background, being out of work, taking antidepressant medication and reporting bullying as cause stood out as predictors of poorer treatment response. Altogether, PMHC was successfully implemented in Norway. Areas for improvement of the service are discussed.

Are we overdosing treatment? Secondary findings from a study following women with bulimia nervosa after inpatient treatment

OBJECTIVE

Provision of eating disorder (ED) treatment in practice is often guided by national health service structures rather than evidence-based treatment recommendations. Especially for more severely or chronically ill patients, clinicians seem to advocate a "the more the better" strategy of treatment provision. Exploring the dose-response relationship in ED treatment may shed light on both beneficial and detrimental effects of prolonged treatment provision.

METHOD

We utilized data from 64 women from the treatment-as-usual (TAU) group of a randomized controlled trial on Internet-based aftercare for women with bulimia nervosa who had received inpatient treatment. We examined the relationship between treatment duration and dose and (1) baseline patient characteristics and (2) treatment outcomes (abstinence from binge eating and compensatory behaviors, frequency of binge eating and vomiting, thin ideal internalization, and general psychopathology) at 18-month follow up.

RESULTS

On average, the women in our study were hospitalized for 9 weeks and most received high doses of subsequent outpatient psychotherapy (median: 45 sessions). The severity of symptoms that a patient experienced at hospital admission or discharge was largely unrelated to the amount of outpatient treatment she subsequently received. Longer inpatient treatments or higher doses of subsequent outpatient treatment did not result in more favorable outcomes.

DISCUSSION

Our findings suggest that, instead of providing costly long treatment without evidenced benefit to patients, there is a need for further exploration of and discussion about the risks and benefits of providing high doses of treatment for both individuals and the health care system.

Changes in interpersonal problems in the psychotherapeutic treatment of depression as measured by the Inventory of Interpersonal Problems: A systematic review and meta-analysis

BACKGROUND

Interpersonal problems are commonly reported by depressed patients, but the effect of psychotherapeutic treatment on them remains unclear. This paper reviews the effectiveness of psychotherapeutic interventions for depression on interpersonal problems as measured by the Inventory of Interpersonal Problems (IIP).

METHODS

An electronic database search identified articles reporting IIP outcome scores for individual adult psychotherapy for depression. A systematic review and, where possible, meta-analysis was conducted.

RESULTS

Twenty-eight studies met inclusion criteria, 10 of which could be included in a meta-analysis investigating changes in the IIP after brief psychotherapy. Reasons for exclusion from the meta-analysis were too few participants with a diagnosis of depression (n=13), IIP means and SDs unobtainable (n=3) and long-term therapy (n=2). A large effect size (g=0.74, 95% CI=0.56-0.93) was found for improvement in IIP scores after brief treatment.

LIMITATIONS

Paucity of IIP reporting and treatment type variability mean results are preliminary. Heterogeneity for improvement in IIP after brief psychotherapy was high (I²=75%).

CONCLUSIONS

Despite being central to theories of depression, interpersonal problems are infrequently included in outcome studies. Brief psychotherapy was associated with moderate to large effect sizes in reduction in interpersonal problems. Of the dimensions underlying interpersonal behaviour, the dominance dimension may be more amenable to change than the affiliation dimension. Yet, high pre-treatment affiliation appeared to be associated with better outcomes than low affiliation, supporting the theory that more affiliative patients may develop a better therapeutic relationship with the therapist and consequently respond more positively than more hostile patients.

The evidence base for cognitive—behavioural therapy in depression: delivery in busy clinical settings

The evidence base for cognitive–behavioural therapy (CBT) for depression is discussed with reference to the review documentTreatment Choice in Psychological Therapies and Counselling (Department of Health). This identifies the need to deliver evidence-based psychosocial interventions and identifies CBT as having the strongest research base for effectiveness, but does not cover how to deliver CBT within National Health Service settings. The traditional CBT model of weekly face-to-face appointments is widely offered, yet there is little evidence to support these traditions in the outcome literature. Reducing face-to-face contact by introducing self-help into treatment may be one method of improving access. The SPIRIT course is discussed which teaches how to offer core cognitive–behavioural skills using structured self-help materials.

A Cost-Effectiveness Analysis to Evaluate a System Change in Mental Healthcare in the Netherlands for Patients with Depression or Anxiety

Over the last decade, the Dutch mental healthcare system has been subject to profound policy reforms, in order to achieve affordable, accessible, and high quality care. One of the adjustments was to substitute part of the specialized care for general mental healthcare. Using a quasi-experimental design, we compared the cost-effectiveness of patients in the new setting with comparable patients from specialized mental healthcare in the old setting. Results showed that for this group of patients the average cost of treatment was significantly reduced by, on average, €2132 (p < 0.001), with similar health outcomes as in the old system.

The effect of length, duration, and intensity of psychological therapy on CORE global distress scores

OBJECTIVES

This study explores whether improvements, as measured by the CORE-OM/10, as a result of psychological therapy were related to length of treatment in weeks, number of treatment sessions, or treatment intensity, as well as any effect of diagnostic group.

METHODS AND DESIGN

Pre- and post-therapy CORE-OM/10 scores were extracted from the clinical records of all secondary care adult psychological therapy team patients who undertook psychological therapy between 2010 and 2013 in one mental health trust. Of the 4,877 patients identified, 925 had complete records. Length of therapy was divided by the number of sessions to create 'treatment intensity' (sessions per week). Nonparametric analyses were used, initial score was controlled for, and diagnostic group was explored.

RESULTS

No relationship was found between change in score and the number of sessions, therapy length, or treatment intensity; however, change in score was positively correlated with first-session score. Patients with higher initial scores had longer therapies; however, treatment intensity was similar for patients with lower pre-therapy distress. There were differences in treatment length (weeks) between diagnostic groups. Demographic differences were found between patients with and without complete records, prompting caution in terms of generalizability.

CONCLUSIONS

These findings are consistent with the responsive regulation model (Barkham et al., 1996) which proposes that patients vary in their response to treatment, resulting in no associations between session numbers or treatment intensity and therapeutic gain with aggregated scores. Patients with higher CORE scores at the outset of psychological therapy had longer not more intensive therapy. There was variation in treatment intensity between diagnostic clusters.

PRACTITIONER POINTS

Number of sessions, length of therapy (in weeks), and treatment intensity (the number of sessions per week between the first and last therapy sessions) were not related to therapeutic gains. These results fit with a responsive regulation model of therapy duration, suggesting an individualized approach to therapy cessation as opposed to therapy session limits as the number of sessions a patient experienced was not generally associated with outcome. We found that clients with a diagnosis of a behavioural syndrome (F50-59) had less 'intensive' therapy; they experienced the same number of sessions over a longer time frame. Despite this, there were no associations between diagnosis category and change in score.

Is there an optimal length of psychological treatment for eating disorder pathology?

Treatment guidelines for eating disorders (ED) are unclear about the optimal length of psychological care. We aimed to investigate associations between treatment duration and changes in ED pathology. Data for 164 outpatients accessing psychological interventions for ED were analyzed using MANOVA. We tested associations between number of therapy sessions and pre-post treatment changes in clinical outcomes (EDE-Q global scores, binge eating, purging); adjusting for baseline measures, diagnoses, and treatment type. Secondary analyses included rapid response variables in the above outcomes by treatment session eight. Partial correlations between treatment duration and BMI changes (adjusting for intake BMI) were examined for anorexia nervosa cases. Treatment duration was not significantly associated with changes in ED outcomes after adjusting for rapid response. BMI change (weight regain) was not correlated with treatment duration in anorexia nervosa cases. Rapid response was associated with better EDE-Q outcomes, but not with changes in binge eating or purging behaviors. ED outcomes are unrelated to treatment duration; rapid response is a useful prognostic indicator for treatment planning.

Using daily monitoring of psychiatric symptoms to evaluate hospital length of stay

BACKGROUND

Routine symptom monitoring and feedback improves out-patient outcomes, but the feasibility of its use to inform decisions about discharge from in-patient care has not been explored.

AIMS

To examine the potential value to clinical decision-making of monitoring symptoms during psychiatric in-patient hospitalisation.

METHOD

A total of 1102 in-patients in a private psychiatric hospital, primarily with affective and neurotic disorders, rated daily distress levels throughout their hospital stay. The trajectories of patients who had, and had not, met a criterion of clinically significant improvement were examined.

RESULTS

Two-thirds of patients (n=604) met the clinically significant improvement criterion at discharge, and three-quarters (n=867) met the criterion earlier during their hospital stay. After meeting the criterion, the majority (73.2%) showed stable symptoms across the remainder of their hospital stay, and both classes showed substantially lower symptoms than at admission.

CONCLUSIONS

Monitoring of progress towards this criterion provides additional information regarding significant treatment response that could inform clinical decisions around discharge readiness.

DECLARATION OF INTEREST

None.

COPYRIGHT AND USAGE

© The Royal College of Psychiatrists 2016. This is an open access article distributed under the terms of the Creative Commons Non-Commercial, No Derivatives (CC BY-NC-ND) license.

Symptom Reduction Without Remoralization: A Randomized, Waiting-List Controlled Study Aimed at Separating Two Beneficial Psychotherapy Outcome Effects

OBJECTIVE

Treatment effects in psychotherapy outcome research are generally based on the reduction of symptoms. Standard inclusion of other beneficial treatment effects such as remoralization (increase of hope, self-efficacy, well-being) might lead to more elaborate findings in the field of psychotherapy. On the other hand, it is also possible that symptom reduction and remoralization always go hand in hand in the experience of patients. The present study sought to experimentally test this assumption.

METHOD

A total of 78 patients suffering from panic disorder were randomly assigned to brief remoralization treatment, brief exposure treatment, or waiting list (WL).

RESULTS

Both treatments increased remoralization and both reduced symptoms of panic disorder as compared to WL.

CONCLUSION

It is unlikely that patients experience remoralization without symptom reduction or symptom reduction without remoralization. These findings do not favor the assumption that conclusions within psychotherapy outcome research are flawed because of its heavy reliance on measurements of symptom reduction.

Unpacking the therapist effect: Impact of treatment length differs for high- and low-performing therapists

OBJECTIVE

Differences between therapists in their average outcomes (i.e., therapist effects) have become a topic of increasing interest in psychotherapy research in the past decade. Relatively little work, however, has moved beyond identifying the presence of significant between-therapist variability in patient outcomes. The current study sought to examine the ways in which therapist effects emerge over the course of time in psychotherapy.

METHOD

We used a large psychotherapy data set (n = 5828 patients seen by n = 158 therapists for 50,048 sessions of psychotherapy) and examined whether outcomes diverge for high-performing (HP) and low-performing (LP) therapists as treatment duration increases.

RESULTS

Therapists accounted for a small but significant proportion of variance in patient outcomes that was not explained by differences between therapists' caseload characteristics. The discrepancy in outcomes between HP and LP therapists increased as treatment duration increased (interaction coefficient = 0.071, p < .001). In addition, patients' trajectories of change were a function of their therapist's average outcome as well as the patient's duration of treatment (interaction coefficient = 0.060, p = .040).

CONCLUSIONS

Indeed, patterns of change previously described ignoring between-therapist differences (e.g., dose-effect, good-enough level model) may vary systematically when disaggregated by therapist effect.

Telephone-administered psychotherapy in combination with antidepressant medication for the acute treatment of major depressive disorder

BACKGROUND

Telephone-administered psychotherapies (T-P) provided as an adjunct to antidepressant medication may improve response rates in major depressive disorder (MDD). The goal of this study was to compare telephone-administered social rhythm therapy (T-SRT) and telephone-administered intensive clinical management (T-ICM) as adjuncts to antidepressant medication for MDD. A secondary goal was to compare T-P with Treatment as Usual (TAU) as adjunctive treatment to medication for MDD.

METHODS

221 adult out-patients with MDD, currently depressed, were randomly assigned to 8 sessions of weekly T-SRT (n=110) or T-ICM (n=111), administered as an adjunct to agomelatine. Both psychotherapies were administered entirely by telephone, by trained psychologists who were blind to other aspects of treatment. The 221 patients were a posteriori matched with 221 depressed outpatients receiving TAU (controls). The primary outcome measure was the percentage of responders at 8 weeks post-treatment.

RESULTS

No significant differences were found between T-SRT and T-ICM. But T-P was associated with higher response rates (65.4% vs 54.8%, p=0.02) and a trend toward higher remission rates (33.2% vs 25.1%; p=0.06) compared to TAU.

LIMITATIONS

Short term study.

CONCLUSIONS

This study is the first assessing the short-term effects of an add-on, brief, telephone-administered psychotherapy in depressed patients treated with antidepressant medication. Eight sessions of weekly telephone-delivered psychotherapy as an adjunct to antidepressant medication resulted in improved response rates relative to medication alone.

Is It All about the Higher Dose? Why Psychoanalytic Therapy Is an Effective Treatment for Major Depression

Empirical evidence for the effectiveness of long-term psychodynamic psychotherapy (LTPP) in patients with mood disorders is growing. However, it is unclear whether the effectiveness of LTPP is due to distinctive features of psychodynamic/psychoanalytic techniques or to a higher number of sessions. We tested these rival hypotheses in a quasi-experimental study comparing psychoanalytic therapy (i.e., high-dose LTPP) with psychodynamic therapy (i.e., low-dose LTPP) and cognitive-behavioural therapy (CBT) for depression. Analyses were based on a subsample of 77 subjects, with 27 receiving psychoanalytic therapy, 26 receiving psychodynamic therapy and 24 receiving CBT. Depressive symptoms, interpersonal problems and introject affiliation were assessed prior to treatment, after treatment and at the 1-, 2- and 3-year follow-ups. Psychoanalytic techniques were assessed from three audiotaped middle sessions per treatment using the Psychotherapy Process Q-Set. Subjects receiving psychoanalytic therapy reported having fewer interpersonal problems, treated themselves in a more affiliative way directly after treatment and tended to improve in depressive symptoms and interpersonal problems during follow-up as compared with patients receiving psychodynamic therapy and/or CBT. Multilevel mediation analyses suggested that post-treatment differences in interpersonal problems and introject affiliation were mediated by the higher number of sessions, and follow-up differences in depressive symptoms were mediated by the more pronounced application of psychoanalytic techniques. We also found some evidence for indirect treatment effects via psychoanalytic techniques on changes in introject affiliation during follow-up. These results provide support for the prediction that both a high dose and the application of psychoanalytic techniques facilitate therapeutic change in patients with major depression.

KEY PRACTITIONER MESSAGE

Psychoanalytic therapy is an effective treatment for major depression, especially in the long run. The differential effectiveness of psychoanalytic therapy cannot be fully explained by its higher dose. Distinctive features of psychoanalytic technique (e.g., focusing on patients' dreams, fantasies, sexual experiences or childhood memories) may play an important role in establishing sustained therapeutic change.

Maximizing Effectiveness Trials in PTSD and SUD Through Secondary Analysis: Benefits and Limitations Using the National Institute on Drug Abuse Clinical Trials Network "Women and Trauma" Study as a Case Example

Recent federal legislation and a renewed focus on integrative care models underscore the need for economical, effective, and science-based behavioral health care treatment. As such, maximizing the impact and reach of treatment research is of great concern. Behavioral health issues, including the frequent co-occurrence of substance use disorders (SUD) and posttraumatic stress disorder (PTSD), are often complex, with a myriad of factors contributing to the success of interventions. Although treatment guides for comorbid SUD/PTSD exist, most patients continue to suffer symptoms following the prescribed treatment course. Further, the study of efficacious treatments has been hampered by methodological challenges (e.g., overreliance on "superiority" designs (i.e., designs structured to test whether or not one treatment statistically surpasses another in terms of effect sizes) and short term interventions). Secondary analyses of randomized controlled clinical trials offer potential benefits to enhance understanding of findings and increase the personalization of treatment. This paper offers a description of the limits of randomized controlled trials as related to SUD/PTSD populations, highlights the benefits and potential pitfalls of secondary analytic techniques, and uses a case example of one of the largest effectiveness trials of behavioral treatment for co-occurring SUD/PTSD conducted within the National Drug Abuse Treatment Clinical Trials Network (NIDA CTN) and producing 19 publications. The paper concludes with implications of this secondary analytic approach to improve addiction researchers' ability to identify best practices for community-based treatment of these disorders. Innovative methods are needed to maximize the benefits of clinical studies and better support SUD/PTSD treatment options for both specialty and non-specialty healthcare settings. Moving forward, planning for and description of secondary analyses in randomized trials should be given equal consideration and care to the primary outcome analysis.

Duration of psychological therapy: relation to recovery and improvement rates in UK routine practice. [corrected]

BACKGROUND

Previous studies have reported similar recovery and improvement rates regardless of treatment duration among patients receiving National Health Service (NHS) primary care mental health psychological therapy.

AIMS

To investigate whether this pattern would replicate and extend to other service sectors, including secondary care, university counselling, voluntary sector and workplace counselling.

METHOD

We compared treatment duration with degree of improvement measured by the Clinical Outcomes in Routine Evaluation - Outcome Measure (CORE-OM) for 26 430 adult patients who scored above the clinical cut-off point at the start of treatment, attended 40 or fewer sessions and had planned endings.

RESULTS

Mean CORE-OM scores improved substantially (pre-post effect size 1.89); 60% of patients achieved reliable and clinically significant improvement (RCSI). Rates of RCSI and reliable improvement and mean pre- and post-treatment changes were similar at all tested treatment durations. Patients seen in different service sectors showed modest variations around this pattern.

CONCLUSIONS

Results were consistent with the responsive regulation model, which suggests that in routine care participants tend to end therapy when gains reach a good-enough level.

MICHI–eine Gruppen-Kurzzeitpsychotherapie zur Behandlung von Depressionen bei Jugendlichen

Kognitive Verhaltenstherapie (KVT) gilt als Mittel der Wahl bei der Behandlung von Depressionen im Jugendalter wobei bis dato noch kein deutsches Behandlungsmanual in einem randomisierten, kontrollierten Design untersucht wurde. 38 depressive Jugendliche (M=15,86, SD=±1,70 Jahre alt; 78,9 % weiblich) wurden randomisiert entweder der Kontrollgruppe (KG), die Behandlung wie üblich erhielt (TAU), oder Interventionsgruppe (IG), welche an einer ambulanten Gruppen-Kurzzeit-KVT (MICHI-Manual) teilnahm, zugeordnet. Als Effektivitätsmaße dienten die CDRS-R und das BDI-II. Die Interaktion aus Gruppe und Messzeitpunkt war sowohl für die CDRS-R (p=,02), mit einer mittleren Effektstärke (dkorr=,75), als auch für den BDI-II (p=,04), mit einer kleinen Effektstärke (dkorr=,39), signifikant. Die Gruppen-Kurzzeit-KVT entsprechend dem MICHI Manual ist verglichen mit TAU wirksam.

Development and Initial Validation of a Brief Symptom Measure

Self-report measures of psychiatric symptomatology are important components of treatment monitoring and service evaluation programs. However, the currently available measures have numerous limitations including being symptom or disorder specific, suited to a limited range of clinical settings, and having excessive burden. Consequently, there is a need for a brief and psychometrically robust measure of global symptomatology that is applicable across diverse clinical settings, therapeutic modalities and patient populations. This paper presents the development and initial validation of such a scale, the Brief Symptom Measure-25 (BSM-25). We report findings from multiple samples examining the reliability, validity, sensitivity to change and factor structure of the new instrument. The results suggest that the BSM-25 has good reliability, is suitable to multiple levels of care, sensitive to treatment induced change and has promising validity. Exploratory bifactor modelling revealed that all items loaded strongly on a general factor (bifactor) while also forming two minor group factors. Potential limitations of this study along with future research and clinical applications of the BSM-25 are discussed.

KEY PRACTITIONER MESSAGE

The BSM-25 is a broad measure of symptom severity that is easy to administer and score, appropriate for divers patient populations, and suitable for monitoring progress in routine clinical practice.

Long-term effects of psychotherapy on moderate depression: a comparative study of narrative therapy and cognitive-behavioral therapy

BACKGROUND

In a previous clinical controlled trial (Lopes et al., 2014), narrative therapy (NT) showed promising results in ameliorating depressive symptoms with comparable outcomes to cognitive-behavioral therapy (CBT) when patients completed treatment. This paper aims to assess depressive symptoms and interpersonal problems in this clinical sample at follow-up.

METHODS

Using the Beck Depression Inventory-II and Outcome Questionnaire-45.2 Interpersonal Relations Scale, naturalistic prospective follow-up assessment was conducted at 21 and 31 months after the last treatment session.

RESULTS

At follow-up, patients kept improving in terms of depressive symptoms and interpersonal problems. The odds that a patient maintained recovery from depressive symptoms at follow-up were five times higher than the odds that a patient maintained recovery from interpersonal problems. In the same way, the odds of a patient never recovering from interpersonal problems were five times higher than the odds of never recovering from depressive symptoms.

LIMITATIONS

The study did not control for the natural course of depression or treatment continuation.

CONCLUSIONS

For depressed patients with greater interpersonal disabilities, longer treatment plans and alternative continuation treatments should be considered.

Cognitive Behavioral Therapy for Depressed Adults with Mild Intellectual Disability: A Pilot Study

BACKGROUND

There is a paucity of research on psychosocial treatments for depression in adults with intellectual disability (ID). In this pilot study, we explored the efficacy of a group CBT treatment that involved a caregiver component in adults with mild ID with a depressive disorder.

METHOD

Sixteen adults with mild ID and a depressive disorder participated in a 10-week group CBT treatment and 8 adults with mild ID with a depressive disorder served as a treatment as usual (TAU) control group. Adults with mild ID and caregivers completed measures of depressive symptoms, behavior problems, and social skills at pre-treatment, post-treatment, and a 3-month follow-up. Adults with mild ID also completed a series of tasks to measure their understanding of the principles of cognitive therapy pre- and post-treatment.

RESULTS

The CBT group demonstrated significant decreases in depressive symptoms and behavior problems from pre-treatment to post-treatment and these effects were maintained at a 3-month follow-up. The CBT group demonstrated significant improvements in their ability to infer emotions and thoughts based on various situation-thought-emotion pairings from pre-treatment to post-treatment.

CONCLUSIONS

Findings indicate that adults with mild ID with a depressive disorder benefitted from a group CBT treatment with a caregiver component. Moreover, adults with mild ID appeared to benefit, at least in part, from the cognitive therapy components of the treatment, in addition to the behavior therapy components.

Qualitative Research on Fatigue Associated with Depression: Content Validity of the Fatigue Associated with Depression Questionnaire (FAsD-V2)

Background

Fatigue is one of the most common symptoms of major depressive disorder (MDD). The Fatigue Associated with Depression Questionnaire (FAsD) was developed to assess fatigue and its impact in patients with MDD. The current article presents the qualitative research conducted to develop and examine the content validity of the FAsD and FASD–Version 2 (FAsD–V2).

Methods

Three phases of qualitative research were conducted with patients recruited from a geographically diverse range of clinics in the US. Phase I included concept elicitation focus groups, followed by cognitive interviews. Phase II employed similar techniques in a more targeted sample. Phase III included cognitive interviews to examine whether minor edits made after Phase II altered comprehensibility of the instrument. Concept elicitation focused on patients’ perceptions of fatigue and its impact. Cognitive interviews focused on comprehension, clarity, relevance, and comprehensiveness of the instrument. Data were collected using semi-structured discussion guides. Thematic analyses were conducted and saturation was examined.

Results

A total of 98 patients with MDD were included. Patients’ statements during concept elicitation in phases I and II supported item development and content. Cognitive interviews supported the relevance of the instrument in the target population, and patients consistently demonstrated a good understanding of the instructions, items, response options, and recall period. Minor changes to instructions for the FAsD–V2 did not affect interpretation of the instrument.

Conclusions

This qualitative research supports the content validity of the FAsD and FAsD–V2. These results add to previous quantitative psychometric analysis suggesting the FAsD–V2 is a useful tool for assessing fatigue and its impact in patients with MDD.