Lauritz Müller

Mr. Lauritz Müller


Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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30 January 2019 in Child and Adolescent Psychiatry and Mental Health
Verified
Journal Article
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LMLauritz Müller
Lauritz Müller
KBKarl Phillipp Büter
Karl Phillipp Büter
RRRita Rosner
Rita Rosner
JUJohanna Unterhitzenberger
Johanna Unterhitzenberger
Studies throughout Europe have shown that asylum-seeking children and adolescents (ASC) are at risk of developing mental disorders. The most common mental-health problems in ASC include posttraumatic stress symptoms (PTSS), internalizing symptoms such as depression and anxiety, and externalizing behaviour. Being an unaccompanied refugee minor (URM) was found to be highly predictive for higher levels of psychological distress within ASC. Nevertheless, and even though Germany is Europe’s biggest host country for ASC, studies that reliably examine the mental health of both URM and accompanied refugee minors (ARM) in Germany with psychometrically tested measures are still lacking. A cross-sectional survey in 19 facilities for minor refugees in Bavaria, Germany, screening for PTSS, depression, anxiety, externalizing behaviour, and post-migration factors was conducted. Participants were 98 ASC (URM, n = 68; ARM, n = 30) primarily from Afghanistan, Syria, and Eritrea. In 35.7% of interviews, interpreters were involved. Both URM and ARM reported high levels of psychological distress and large numbers of potentially traumatic events, with 64.7% of URM and 36.7% of ARM scoring above the clinical cut-off for PTSS, 42.6% of URM and 30% of ARM for depression, and 38.2% of URM and 23.3% of ARM for anxiety. The total number of traumatic experiences was found to be the most robust predictor for PTSS, depression, and anxiety. Lower levels of individual resources, lower levels of social support in the host country, and poorer German language proficiency were associated with higher levels of psychological distress within both groups. URM reported significantly more traumatic events than ARM. ASC in Germany are severely distressed and burdened by the experiences of various types of potentially traumatic events. The levels of distress found in the current study correspond with rates that have been reported in previous studies with ASC throughout Europe. Limitations of the present study include the convenience sample and the cross-sectional nature of findings.

8 July 2019 in BMC Public Health
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Journal Article
Open access
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LMLauritz Müller
Lauritz Müller
KGKatharina Gossmann
Katharina Gossmann
FHFranziska Hartmann
Franziska Hartmann
KBKarl Phillipp Büter
Karl Phillipp Büter
RRRita Rosner
Rita Rosner
JUJohanna Unterhitzenberger
Johanna Unterhitzenberger
Asylum-seeking children and adolescents (ASCs) who have resettled in Western countries show elevated rates of psychological distress, including Posttraumatic Stress Symptoms (PTSS), depression, and anxiety. Most longitudinal data suggest a relatively stable course of symptoms during the first years in exile. However, no longitudinal examination of the mental health of ASCs, who resettled in Europe in the wake of the 2015–17 European migrant crisis, has been conducted so far. A prospective cohort study looked at 98 ASCs who resettled in southern Germany throughout 2015–17. They mainly came from Afghanistan, Syria, Eritrea, and Iraq. Baseline assessments were undertaken 22 months, on average, after resettlement, and follow-up assessments 1 year thereafter. Seventy-two ASCs could be secured for the follow-up. The measures included self-report questionnaires screening for PTSS, depression, anxiety, externalizing behavior, and post-migration factors that were administered in an interview-like setting. Results were analyzed using hierarchical multiple regression analysis. Participating ASCs reported on average eight potentially traumatic experiences and high levels of psychological distress at baseline that had significantly declined at follow-up. At follow-up, rates of clinically significant symptoms ranged from 9.7% (externalizing behavior) to 37.5% (PTSS). There was considerable individual variation in symptom change resulting in multiple mental health trajectories. ASCs whose asylum applications had been rejected presented significantly more symptoms than ASCs whose asylum applications had been accepted between assessments. Baseline psychopathology and asylum status predicted follow-up symptom severity. In contrast to earlier studies, the symptom severity in this sample of ASCs in Germany ameliorated between assessments. Decisions on the asylum applications of ASCs are thought to contribute to the course of symptoms. Since levels of psychological distress were still high, dissemination and implementation of appropriate treatments for ASCs is crucial.

1 February 2021 in PLOS ONE
Verified
Journal Article
Open access
PDF file
LMLauritz Müller
Lauritz Müller
KGKatharina Gossmann
Katharina Gossmann
RSRegina F. Schmid
Regina F. Schmid
RRRita Rosner
Rita Rosner
JUJohanna Unterhitzenberger
Johanna Unterhitzenberger
Background: Asylum-seeking children and adolescents (ASCs) resettled to western countries show elevated levels of psychological distress. While research on the mental health of ASCs is increasing, less is known about their day-to-day living experiences such as their daily mood, sleep patterns, and post-migration factors. Moreover, no examination in situ, using smartphone-assisted ecological momentary assessment (EMA), has been conducted up to now among ASCs. Furthermore, we do not know if screening measures succeed in reflecting the daily mood of ASCs experienced in everyday life. Methods: We undertook a smartphone-assisted EMA study over a two-week period with 3 measurements a day. Participants were N = 40 ASCs from 10 different countries who had resettled to Germany. They completed standardized questionnaires screening for history of trauma and clinical symptoms (post-traumatic stress symptoms, depression, and anxiety) that were carried out in interview-like settings, and they participated in the subsequent EMA where they rated mood, sleep parameters, and post-migration factors on a daily basis. Multilevel models of clinical symptoms, daily mood, and sleep parameters were computed based on a total of 680 measurements. Results: The multiply traumatized and highly distressed participants reported different levels of discrimination, and various social activities and contacts in the EMA. The overall compliance rate was shown to be 40.5%. Higher PTSS and anxiety scores were associated with lower levels of daily mood and poorer outcomes of some sleep parameters. Depression scores were not associated with any of the variables assessed in the EMA. Conclusions: Smartphone-assisted EMA among ASCs resettled to Germany proved to be implementable despite a rather low compliance rate. Not only do ASCs show high symptom levels, they are also affected by these symptoms in their daily lives. The results emphasize the need for concise screenings and psychological treatment for this high-risk population. Limitations include the convenient nature of the sample and the lack of a comparison group.

LMLauritz Müller
Lauritz Müller
JUJohanna Unterhitzenberger
Johanna Unterhitzenberger
SWSvenja Wintersohl
Svenja Wintersohl
RRRita Rosner
Rita Rosner
JKJulia König
Julia König
Background: The substantial number of young refugees who have arrived in Europe since 2015 requires rapid screening to identify those in need of treatment. However, translated versions of screening measures are not always available, necessitating the support of interpreters. The Child and Adolescent Trauma Screen (CATS) is a validated questionnaire for posttraumatic stress symptoms. Here, we report on the psychometric properties of the CATS in a sample of young refugees as a function of interpreter involvement. Methods: A total of N = 145 (Mage = 16.8, SD = 1.54; 93% male) were assessed with the CATS, with half of the screenings conducted with and half without interpreters. Post hoc analyses included calculating internal consistency using Cronbach’s α. We used confirmative factor analysis to investigate the factor structure. Results: The CATS total scale showed good reliability (α = 0.84). Differences in psychometric properties between the interpreter vs. the no interpreter group were minor and tended to be in favor of the interpreter group. Results of a confirmatory factor analysis were acceptable after the exclusion of items with low item-scale correlations. Conclusions: The sample and the administration of the assessment represent the situation of young refugees in Germany, where resources are low and translated versions not always available. The CATS may be a helpful screening tool for clinicians working with young refugees, even when administered with an interpreter. Limitations include the post hoc design of the analysis without randomization of participants and the lack of a third comparison group using translated questionnaire versions.