Negative affect as mediator between emotion regulation and medically unexplained symptoms

Climate change anxiety and its association with somatic symptom distress and idiopathic environmental intolerances: A cross-sectional study

CONTEXT

Individuals need greater climate change awareness in order to mitigate and adapt to climate changes but this awareness can lead to negative health outcomes including climate change anxiety.

OBJECTIVE

To explore the associations between climate change anxiety, idiopathic environmental intolerances and somatic symptom distress, after accounting for modern health worries, anxiety and depression.

METHODS

A non-representative sample of healthy volunteers completed a cross-sectional online survey that included the Climate Change Anxiety scale (CCA-13), single questions about idiopathic intolerance to five environmental agents, the Somatic Symptoms scale (SSS-8), the Modern Health Worries scale (MHW-12), and the Patient Health Questionnaire for symptoms of anxiety and depression (PHQ-4). Participants also reported their sex, age and subjective socioeconomic status. Bivariate analyses investigated associations between variables and path analyses explored potential mediating factors.

RESULTS

432 participants completed the questionnaire, 421 of whom were included in analyses (67 % women, mean age: 32.7 standard deviation: 12.4). Climate change anxiety, idiopathic environmental intolerances, somatic symptom distress, modern health worries, and symptoms of anxiety and depression were positively correlated in bivariate analyses (Pearson's ranging from 0.22 to 0.57, all p < 0.001). In path analyses, modern health worries (R2 = 9.9 %) partially mediated the relation between climate change anxiety (R2 = 20.3 %) and two correlated outcome variables, idiopathic environmental intolerances (R2 = 36.8 %) and somatic symptom distress (R2 = 32.4 %).

CONCLUSIONS

Climate change anxiety may negatively affect perceived physical health. Stakeholders should aim at promoting climate change awareness while addressing modern health worries to avoid negative health outcomes.

'Pain free if I ever will be': lived experience of workers seeking care for pain attributed to musculoskeletal disorders

BACKGROUND

Pain attributed to musculoskeletal disorders are a significant hinderance to work ability and economic growth, especially in developing countries. Quality of life and lived experience of workers with musculoskeletal disorders have not been explored enough to determine whether person-centred care is provided. There is a wealth of evidence for using the biomedical approach in the management of workers with musculoskeletal disorders, which has proved ineffective in reducing absenteeism and symptoms experienced by workers. The purpose of this study was to explore the lived experience of workers seeking care for musculoskeletal disorders and how their pain attitudes and beliefs influenced their experience.

METHODS

A qualitative approach with thematic analysis was used. Purposive sampling was used to recruit six participants for semi-structured interviews. All participants were either experiencing pain attributed to a musculoskeletal disorder or had received care for a musculoskeletal disorder.

RESULTS

Pain attitudes and beliefs of workers with a musculoskeletal disorder and healthcare professionals greatly influenced the care and recovery process of musculoskeletal disorders. There is a primary biomedical lens informing care of workers with musculoskeletal disorders received. Workers expect healthcare professionals to explore their concerns further, but the focus of care for most participants was their presenting complaint. There is also a need for the autonomy of workers to be preserved, and communication between healthcare professionals and workers with musculoskeletal disorders needs to improve.

CONCLUSIONS

Many stakeholders are involved in the recovery process from musculoskeletal disorders. There is a need for a biopsychosocial informed practice to improve return-to-work (RTW) in workers with musculoskeletal disorders. Change is needed at all healthcare system levels to reduce the negative experiences of workers and maladaptive pain beliefs that is associated with persisting symptoms and extended absenteeism.

The association between emotional regulation dimensions and somatic symptom disorders: A systematic review and meta-analysis

Clarifying the effect size of the association between somatic symptom disorders (SSDs) and defects in emotional regulation (ER) dimensions through a meta-analysis may improve ER-related treatment for SSD patients. SSDs exhibited a lower level of adaptive ER (overall Hedge's g = -0.618, 95 %CI [0.872, -0.365]; Hedge's g for ER dimensions of Awareness, Description, Clarity, Acceptance, Tolerance, Self-efficacy belief, and Cognitive Reappraisal ranged from -0.451 to -1.344). Maladaptive ER dimensions (catastrophizing and expressive inhibition) showed no significant associations with SSDs. Psychotherapy focusing on developing adaptive ER rather than reducing maladaptive ER may be a more promising approach for treating SSD patients.

Exploring the course of functional somatic symptoms (FSS) from pre- to late adolescence and associated internalizing psychopathology - an observational cohort-study

BACKGROUND

Functional somatic symptoms (FSS), which commonly cannot be attributed to well-defined organic pathology, often co-occur with internalizing psychopathology and fluctuate throughout different life stages. We examined FSS courses throughout adolescence, and the association between preadolescent FSS, FSS severity and internalizing psychopathology at late adolescence.

METHODS

Data from the Copenhagen Child Cohort (CCC2000) were utilized from assessments at ages 11-12 years (preadolescence; T0) and 16-17 years (late adolescence; T1). Self-report questionnaire and interview data on FSS, internalizing psychopathology, chronic medical conditions, and sociodemographic data from Danish national registers were available for 1285 youths. FSS courses were categorized into persistent (high FSS at T0 & T1), remission (high FSS only at T0), incident (high FSS only at T1) or no FSS (no FSS at T0 & T1). Multiple linear and multinomial logistic regressions were conducted to investigate the FSS/psychopathology association.

RESULTS

1.8% of adolescents fell into the persistent FSS course group throughout adolescence. Higher preadolescent FSS predicted FSS (b = 0.07, p < .001), anxiety (b = 0.05, p < .001) and depression (b = 0.06, p < .001) at age 16/17, even after controlling for sex, parental education, a chronic medical condition and internalizing psychopathology in preadolescence. Persistent, incident, and remittent FSS courses were associated with significantly higher mean levels of anxiety and depression compared to the reference group (no FSS).

CONCLUSIONS

FSS during pre- and late adolescence might increase and co-occur with anxiety and depression throughout adolescence, potentially due to shared underlying risk factors and processes.

Which symptoms are the psychopathological core affecting the manifestation of pseudo-cardiac symptoms and poor sleep quality in young adults? Symptoms of personality disorders versus clinical disorders

Background

Diagnosing and identifying the psychological origin of pseudo-cardiac symptoms and comorbid conditions such as poor sleep quality is very difficult due to its extensive and complex nature. The present study was conducted to determine the contribution of symptoms of personality disorders (PDs) and clinical disorders (CDs; i.e., psychological symptoms measured using the Symptom Checklist-90) to the manifestation of pseudo-cardiac symptoms and poor sleep quality.

Methods

Subjects in this cross-sectional study were 953 (64.3% female; 28.8 ± 6.2 years) community samples in the west of Iran who were selected by convenience sampling. After applying the inclusion criteria, data were collected using the Symptom Checklist-90 (SCL-90-R), the Personality Diagnostic Questionnaire (PDQ-4), and the Scale for Pseudo-Cardiac Symptoms and Poor Sleep Quality (SPSQ). Pearson correlations, factor analytical techniques, and hierarchical regression models were used to examine associations between symptoms of PDs/CDs and outcome factors.

Results

Factor analytical techniques confirmed both the integrated structure of symptoms of PDs and CDs. Both pseudo-cardiac symptoms and poor sleep quality were more strongly associated with symptoms of CDs than PDs. The results of the hierarchical analysis show that the CDs factor alone could explain the total variance of both pseudo-cardiac symptoms (change in R² = 0.215 vs. 0.009; p < 0.001) and poor sleep quality (change in R² = 0.221 vs. 0.001; p < 0.001).

Conclusion

The different capabilities of two unique factors for the symptoms of PDs and CDs were confirmed by factor analytical methods and regression analysis techniques. Although each of the symptoms of PDs and CDs independently contributes to the manifestation of pseudo-cardiac symptoms and poor sleep quality, the CDs factor is the psychopathological core.

Functional Somatic Symptoms and Emotion Regulation in Children and Adolescents

Background

Functional Somatic Symptoms (FSS; i.e. symptoms without sufficient organic explanation) often begin in childhood and adolescence and are common to this developmental period. Emotion regulation and parental factors seem to play a relevant role in the development and maintenance of FSS. So far, little systematic research has been conducted in childhood and adolescence on the importance of specific emotion regulation strategies and their links with parental factors.

Method

In two studies, children and adolescents (Study 1/Study 2: N = 46/68; 65%/60% female, Age M = 10.0/13.1) and their parents completed questionnaires on children's FSS and adaptive and maladaptive emotional regulation (in Study 2, additionally parental somatization and child/parental alexithymia).

Results

In both studies, child-reported FSS were negatively associated with children's adaptive emotion regulation (r = -.34/-.31, p < .03; especially acceptance) and positively with children's maladaptive emotion regulation and alexithymia (r = .53/.46, p < .001). Moreover, children's maladaptive emotion regulation (β = .34, p = .02) explained incremental variance in child-reported FSS beyond children's age/sex, parental somatization and emotion regulation. In contrast, parental somatization was the only significant predictor (β = .44, p < .001) of parent-reported FSS in children/adolescents.

Conclusion

Our results suggest that particularly rumination and alexithymia and parental somatization are important predictors of FSS in children/adolescents. Overall, the results showed a dependence on the person reporting children's FSS (i.e., method-variance). So, for future studies it is relevant to continue using the multi-informant approach.

The efficacy of a transdiagnostic emotion regulation skills training in the treatment of binge-eating disorder-Results from a randomized controlled trial

OBJECTIVES

Deficits in emotion regulation (ER) have been shown to be associated with binge-eating disorder (BED). To further clarify the causal nature of this association, we tested whether systematically enhancing ER skills would reduce symptoms of BED.

METHODS

We randomly allocated N = 101 individuals meeting the criteria for BED to a transdiagnostic ER skills training or to a waitlist control condition (WLC). Primary outcome was the reduction in binges during the treatment-vs.-waiting period as assessed with the Eating Disorder Examination (EDE) interview.

RESULTS

Mixed-model ANOVAs indicated that the average pre-to-post decrease in binges assessed with the EDE was significantly greater in the ER skills training condition than in the WLC (d = 0.66). These effects were stable over the 6-month follow-up period (d = 0.72). Remission rates at post/follow-up were 34.4/45.0% in the skills training and 7.5/20.0% in the WLC. Additionally, we found a greater reduction in general eating disorder psychopathology, of food consumption in a bogus taste test and of depression in the ER skills training condition. Moreover, the greater reduction in binge-eating episodes in the training condition was (partially) mediated by a greater increase in ER skills.

CONCLUSIONS

The findings provide further support for the assumed importance of deficits in ER as a maintaining factor and, hence, as a target in the treatment of BED. As ER skills trainings have been shown to also reduce other kinds of psychopathology, they might be considered a promising transdiagnostic add-on component to disorder-specific interventions.

Assessing alexithymia in adults with acquired brain injury: Psychometric properties of the Perth Alexithymia Questionnaire

BACKGROUND

Alexithymia is a multidimensional personality trait comprised of difficulty identifying feelings, difficulty describing feelings, and externally orientated thinking. The assessment of alexithymia in people with acquired brain injury (ABI) is of clinical interest because alexithymia is linked to poor psychosocial functioning and community reintegration after ABI. To date, alexithymia measures have not been psychometrically investigated/validated in an ABI sample, restricting confident empirical work in this area. We aimed to fill this gap by assessing the psychometric properties of the Perth Alexithymia Questionnaire (PAQ) in adults with ABI and determining whether the alexithymia construct manifests similarly in ABI samples compared to the general community.

METHODS

The PAQ and Depression Anxiety Stress Scales-21 were administered to an ABI sample (N = 350) and a community sample (N = 1012). Factor structure, measurement invariance, internal consistency reliability, and concurrent/discriminant validity were explored.

RESULTS

Our confirmatory factor analysis of the PAQ supported the intended five-factor correlated model as the best solution, where items loaded well onto the five intended subscales. This factor structure was invariant across ABI and community samples. Good reliability and concurrent and discriminant validity were also established.

LIMITATIONS

The PAQ is a self-report measure and may be impacted by insight deficits known to occur after ABI.

CONCLUSION

Our data suggests that the PAQ has good validity and reliability as a measure of alexithymia. The latent structure of alexithymia manifests similarly in ABI and community samples. This study provides the first psychometric foundation for confident assessment of alexithymia in ABI.

Cognitive and emotional variables predicting treatment outcome of cognitive behavior therapies for patients with medically unexplained symptoms: A meta-analysis

OBJECTIVE

Cognitive behavior therapy (CBT) is the best-evaluated psychological approach to treat patients with medically unexplained symptoms (MUS). We still need a better understanding of what characterizes patients with MUS who benefit more or less from CBT. This systematic review aimed to identify patients' cognitive-emotional characteristics predicting the outcome of CBT for MUS.

METHODS

A systematic literature search (PubMed, PsycINFO, Web of Science) revealed 37 eligible studies, 23 of these provided data for meta-analyses. Mean correlation coefficients between predictor variables and the outcomes (symptom intensity, physical or social-emotional functioning) were calculated using a random-effects model. Differences between syndromes of MUS were investigated with moderator analyses.

RESULTS

Meta-analyses showed that patients with a comorbid mood disorder (r = 0.32, p < .01) or anxiety disorder (r = 0.18, p < .01), symptom catastrophizing and worries (r = 0.34, p < .01), tendencies of somatosensory amplification (r = 0.46, p = .04), and low symptom acceptance or self-efficacy (r = 0.25, p < .01) have a less favorable CBT outcome. Moderator analyses revealed that these associations between predictors and treatment outcome are pronounced in patients with chronic fatigue syndrome and irritable bowel syndrome.

CONCLUSIONS

Our results show that pre-treatment differences in patients' cognitive-emotional characteristics predict patients' outcome in CBT. Patient-tailored CBT could be a promising approach to address MUS patients' widely varying needs more effectively.

PROTOCOL REGISTRATION

The protocol of this systematic review and meta-analysis was registered in the PROSPERO registry (CRD 42018098649).

Different Dimensions of Affective Processing in Patients With Irritable Bowel Syndrome: A Multi-Center Cross-Sectional Study

Objective: Deficits in affective processing are associated with impairments in both mental and physical health. The role of affective processing in patients with functional somatic complaints such as irritable bowel syndrome (IBS) remains unclear. Most studies have focused on the capacity for emotional awareness and expression, but neglect other dimensions of affective processing. Therefore, this study aimed to systematically analyze differences in six different dimensions of affective processing between patients with IBS and healthy controls (HCs). Additionally, we exploratively investigated the impact of IBS symptom severity, psychological distress, and attachment styles on affective processing in IBS. Methods: A controlled cross-sectional multi-center study was conducted. Overall, 127 patients with IBS were compared with 127 matched HCs using multivariate analysis of variances. Affective processing was operationalized in line with the affect cascade model on six specific dimensions: emotional experience, emotional awareness, affect tolerance, affect differentiation, affect regulation, and emotional communication. They were measured using two subscales of the Mentalizing Questionnaire (MZQ) and four subscales of the Operationalized Psychodynamic Diagnosis-Structure Questionnaire (OPD-SQ). Linear regression analysis was used to investigate the influence of IBS symptom severity (IBS-Severity Scoring System, IBS-SSS), depression (Patient Health Questionnaire, PHQ-9), anxiety (General Anxiety Disorder, GAD-7), and anxious and avoidant attachment styles (Experiences in Close Relationships Scale, ECR-RD12) on the different dimensions of affective processing in IBS. Results: Patients with IBS compared to HCs showed deficits in all six dimensions of affective processing. Deficits were largest for affect tolerance (d = 0.849) and lowest for emotional experience (d = 0.222) and emotional awareness (d = 0.420). Moderate effect sizes were found for affect differentiation (d = 0.773), emotional communication (d = 0.665), and affect regulation (d = 0.552). Moreover, explorative analyses indicated that affective processing in patients with IBS was significantly influenced by levels of anxiety and insecure attachment. Conclusion: The results indicate a specific pattern of affective processing abilities in patients with IBS. The deficits in affective processing are more prominent in the area of understanding and tolerating difficult affective states than experiencing affective states. This opens interesting perspectives for the development of specific psychotherapeutic interventions. Clinical Trial Registration: DRKS00011685.

Alexithymia, empathy, negative affect and physical symptoms in patients with asthma

Although alexithymia has been found to be associated with physical symptoms in psychosomatic disorders such as asthma, mechanisms linking this association are unknown. However, affective alexithymic features may be associated with physical symptoms in the presence of deficits in affective characteristics such as low empathy and high negative affect. This study aimed to assess direct effects of alexithymic traits on physical symptoms and indirect effects of these subscales through empathy and negative affect (e.g. depressive, anxious and stress symptoms) by controlling for asthma severity in patients with asthma. Three hundred patients with asthma completed the Toronto Alexithymia Scale-20 (TAS-20), the Basic Empathy Scale (BES), the Depression Anxiety Stress Scales-21 (DASS-21) and the Physical Symptoms Inventory (PSI). After controlling for asthma severity, the results showed that alexithymia subscales of the TAS-20 had no direct effects on physical symptoms, but the difficulty in identifying feelings (DIF) subscale of the TAS-20 was associated with affective empathy and negative affect. Affective empathy was significantly related to negative affect. Affective empathy and negative affect were associated with physical symptoms. The affective subscale of alexithymia on the TAS-20, that is DIF, indirectly affected physical symptoms through affective empathy and negative affect. Findings suggest that patients with asthma who have high levels of DIF may show high physical symptoms in the presence of low affective empathy and high negative affect.

Altered Interoceptive Awareness in High Habitual Symptom Reporters and Patients With Somatoform Disorders

Objective: Altered interoception may play a major role in the etiology of medically unexplained symptoms (MUS). It remains unclear, however, if these alterations concern noticing of signals or if they are limited to the interpretation of signals. We investigated whether individuals with MUS differ in interoceptive awareness as assessed with the Multidimensional Assessment of Interoceptive Awareness (MAIA) questionnaire.

Methods: Study 1: A total of 486 individuals completed the Screening for Somatoform Disorders (SOMS-2). Thirty-two individuals each of the upper and lower decile of the SOMS distribution (low symptom reporters/LSR, high symptom reporters/HSR) completed the MAIA. Study 2: MAIA scores of individuals diagnosed with somatoform disorder (SFD; n = 26) were compared to individuals with major depressive disorder (MDD; n = 25) and healthy controls (HC; n = 26).

Results: HSR had lower scores than LSR on the MAIA scales Not-Distracting and Not-Worrying. The SFD and MDD groups showed lower scores than HC on the MAIA scales Not-Distracting, Self-Regulation, and Trusting. The MDD group scored lower than the other two groups on the scales Body Listening and Attention Regulation. There were no group differences on the scale Noticing.

Conclusion: HSR, SFD, and MDD patients do not differ from HC in the awareness of noticing of interoceptive signal processing, whereas cognitive facets of interoception, such as distraction or self-regulation are differentially affected. This highlights the necessity of including specifically targeted interventions, which improve interoceptive awareness, in the prevention and treatment of SFDs.

Cognitive Behaviour Therapy Complemented with Emotion Regulation Training for Patients with Persistent Physical Symptoms: A Randomised Clinical Trial

INTRODUCTION

Persistent medically unexplained symptoms (MUS) are a major burden for health care. Cognitive behaviour therapy (CBT) is efficacious for patients with MUS, with small to medium effects. The current study investigates whether therapy outcomes of a CBT for MUS patients can be improved by complementing it with emotion regulation training.

METHODS

In a multicentre trial 255 patients with at least three persisting MUS were randomised to 20 sessions of either conventional CBT (n = 128) or CBT complemented with emotion regulation training (ENCERT; n = 127). Somatic symptom severity and secondary outcomes were assessed at pre-treatment, therapy session 8, end of therapy, and 6-month follow-up.

RESULTS

Linear mixed-effect models revealed medium to large effects in both study arms for almost all outcomes at the end of therapy and 6-month follow-up. ENCERT and CBT did not differ in their effect on the primary outcome (d = 0.20, 95% CI: -0.04 to 0.44). Significant time × group cross-level interactions suggested ENCERT to be of more benefit than conventional CBT for a few secondary outcomes. Moderator analyses revealed higher effects of ENCERT in patients with co-morbid mental disorders.

DISCUSSION/CONCLUSIONS

Current findings are based on a representative sample. Results demonstrate that both CBT and ENCERT can achieve strong effects on primary and secondary outcomes in MUS patients. Our results do not indicate that adding a training in emotion regulation skills generally improves the effect of CBT across all patients with MUS. Large effect sizes of both treatments and potential specific benefits of ENCERT for patients with co-morbid mental disorders are discussed.

Affect regulation training reduces symptom severity in depression - A randomized controlled trial

Deficits in general emotion regulation skills have been shown to be associated with various mental disorders. Thus, general affect-regulation training has been proposed as promising transdiagnostic approach to the treatment of psychopathology. In the present study, we aimed to evaluate the efficacy of a general affect-regulation as a stand-alone, group-based treatment for depression. For this purpose, we randomly assigned 218 individuals who met criteria for major depressive disorder (MDD) to the Affect Regulation Training (ART), to a waitlist control condition (WLC), or to a condition controlling for common factors (CFC). The primary outcome was the course of depressive symptom severity as assessed with the Hamilton Rating Scale for Depression and the Beck Depression Inventory. Multi-level analyses indicated that participation in ART was associated with a greater reduction of depressive symptom severity than was participation in WLC (d = 0.56), whereas the slight superiority of ART over CFC (d = 0.25) was not statistically significant. Mediation analyses indicated that changes in emotion regulation skills mediated the differences between ART/CFC and WLC. Thus, the findings provide evidence for enhancing emotion regulation skills as a common mechanism of change in psychological treatments for depression. The study was registered with ClinicalTrials.gov (NCT01330485) and was supported by grants from the German Research Association (DFG; BE 4510/3-1; HI 456/6-2). Future research should compare the (cost-) efficacy of ART with that of disorder-specific interventions.

Common therapeutic strategies in psychological treatments for medically unexplained somatic symptoms

Objective: Medically unexplained somatic symptoms (MUSS) represent a frequent complaint in health care services. While psychological treatments have demonstrated some effect in patients with MUSS, further progress may be achieved by a synthesis of clinical strategies used in diverse treatment models. The aim of this study was to identify clinical strategies shared across multiple psychological treatments intended for the treatment of adult patients with MUSS. Method: Descriptions of psychological treatments for patients with MUSS were searched in the PsycINFO, PsycARTICLES, and Medline databases and manually. N = 135 resources met inclusion criteria and were subjected to qualitative analysis. Results: Similarities across treatments were captured in 8 broad categories and 18 subcategories that covered aspects of the therapeutic relationship, specific skills (bodily, emotional, and relational) for patients to develop, search for the meaning of symptoms, and the orientation on life beyond symptoms. Conclusions: Despite the differences in technique, it was possible to identify common therapeutic strategies in psychological treatments for patients with MUSS. These overarching treatment strategies, many of which have already obtained empirical support, may inspire further research and the development of comprehensive treatments with enhanced efficacy. Limitations of the present study include the lack of focus on specific syndromes.

Emotion regulation in patients with somatic symptom and related disorders: A systematic review

Background

Somatic symptoms and related disorders (SSD) are prevalent phenomena in the health-care system. Disturbances in emotion regulation (ER) are commonly observed in patients suffering from SSD.

Objectives

This review aimed to examine ER processes that characterize SSD by a systematic analysis of the available empirical studies.

Data sources

PsycINFO and PubMed databases for the articles published between January 1985 and June 2018.

Search terms

“emotion/al regulation” or “affect regulation” and various forms of SSD.

Study eligibility criteria

Empirical studies that a) assigned adolescent or adult patients suffering from SSD based on a clinical diagnosis, and b) examined the relationship between ER and SSD, were included.

Study synthesis methods

A tabular summary of the articles was generated according to study characteristics, study quality, variables, and findings. The findings were organized based on ER variables used in the articles and diagnoses of SSD, which were then re-organized under the main constituents of ER (attention, body, and knowledge).

Results

The findings of the 64 articles largely supported the association between SSD and disturbances in ER, which are usually shared by different diagnoses of SSD. The results indicate that patients show a reduced engagement with cognitive content of emotions. On the other hand, bodily constituents of ER seem to depict an over-reactive pattern. Similarly, the patients tend to encounter difficulties in flexibly disengaging their (spontaneous) attention from emotional material.

Limitations

There is a scarcity of longitudinal designs, randomized controlled trials, experiments, and diary studies suited to investigate the short- and long-term causal relationship between ER and SSD. Symptoms of SSD and measures to assess emotion regulation are heterogeneous.

Conclusions and implications

Assessment of ER processes is potentially useful to understand SSD and for treatment planning. Furthermore, a concurrent investigation of the dynamic interaction of the ER modalities promises insights for better understanding of the role of ER in development, course, and maintenance of SSD.

Efficacy of a guided internet-based intervention (iSOMA) for somatic symptoms and related distress in university students: study protocol of a randomised controlled trial

INTRODUCTION

Persistent and distressing somatic symptoms are common in younger age cohorts such as university students. However, the majority does not receive adequate psychosocial care. Internet-based and mobile-based interventions may represent low threshold and effective extensions to reduce somatic and associated mental symptom severity. The planned study aims to investigate the feasibility and efficacy of an internet-based intervention in reducing somatic and psychological symptoms in an international population of university students with somatic symptom burden.

METHODS AND ANALYSIS

This parallel two-armed randomised controlled trial evaluates an 8-week guided intervention, including web-based consecutive modules based on cognitive behavioural therapy (CBT) principles against a waitlist control group. Guidance will be provided by trained psychologists with weekly written supportive feedback. As part of the 'Studicare' project, the present study aims to recruit n=154 university students indicating somatic symptom burden at baseline in German-speaking universities. Self-report assessments will take place at baseline and after intervention completion (8, 16 weeks after randomisation). The primary outcome will be the severity of somatic symptoms and associated mental distress. Secondary outcomes include depression, (health) anxiety, disability, intervention satisfaction and adherence.

ETHICS AND DISSEMINATION

Ethics approval has been granted. Results from this study will be published in peer-reviewed journals and presented at international conferences.

TRIAL REGISTRATION NUMBER

DRKS00014375; Pre-results.

Moderating Effects of Alexithymia on Associations between the Therapeutic Alliance and the Outcome of Brief Psychodynamic-Interpersonal Psychotherapy for Multisomatoform Disorder

This secondary analysis of a trial on brief psychodynamic-interpersonal therapy (PIT) for patients with multisomatoform disorder investigated whether alexithymia moderates the associations between the therapeutic alliance and the outcome of PIT and whether moderating effects of alexithymia remain significant when controlling for depression. Eighty-three patients with multisomatoform disorder receiving PIT were statistically analyzed. Moderation analyses were performed with the SPSS macro PROCESS. The primary outcome (Y), self-reported physical quality of life at 9-month after the end of PIT, was measured with the physical component summary (PCS) of the SF-36 Health Survey. The potential moderator (M) alexithymia was operationalized with the Toronto Alexithymia Scale (TAS-20) at pre-treatment and the predictor (X) the therapeutic alliance was rated by both patients and therapists via the Helping Alliance Questionnaire (HAQ) at the end of PIT. Moreover, the PCS at pre-treatment functioned as covariate in all moderation models. When the patients' alliance ratings were analyzed, alexithymia did not moderate associations between the alliance and the outcome. When the therapists' alliance ratings were evaluated, alexithymia moderated the relationship between the alliance and the outcome (p < 0.05): a stronger alliance in the therapists' perspective was beneficial for the outcome only for patients scoring above 61 on the TAS-20. This moderating effect of alexithymia was, however, not statistically significant anymore when adding the pre-treatment depression scores (PHQ-9) as a covariate to the moderation model. The results underline the importance of a good therapists' view of the alliance when treating alexithymic patients and highlight the complex interaction between alexithymia and depression. Future studies are needed to extend the scope of research regarding which psychotherapeutic mechanisms of change are beneficial for which patients.