: Objective: The situation of patient's relatives is still not broadly studied in psychiatry. Their needs are often overlooked. Method: We developed a digital questionnaire concerning the patient's sociodemographic, disease-related, and family-related data and had the patient's therapist fill it out. The patients included (N = 1766) were persons hospitalized on a selected date. Results: One-third of patients had at least one relative with mental illness, prior treatment, or need for treatment. The main diagnoses in relatives were affective, substance use, and somatoform disorders, often in concordance with their index patient. Teenage patients had the most affected relatives. The therapists of the minors included were better informed about their familial situation, whereas the therapists of the 30-59-year-olds knew the least. Conclusions: The comparably lower rate of affected relatives in adults stems most likely from underassessment and needs further investigation. Zusammenfassung: Fragestellung: Die Situation der Angeh & ouml;rigen von psychiatrischen Patienten wird noch immer nicht umfassend untersucht. Ihr Bedarf und ihre Bed & uuml;rfnisse werden oft nicht gesehen. Methodik: Ein digitaler Fragebogen zu soziodemografischen, krankheits- und familienbezogenen Daten des Patienten wurde entwickelt und vom Therapeuten des Patienten ausgef & uuml;llt. Eingeschlossen wurden alle Patienten (Gesamtstichprobe = 1766), die zu einem bestimmten Datum station & auml;r behandelt wurden. Ergebnisse: Ein Drittel der Patienten hatte mindestens einen Verwandten mit einer psychischen Erkrankung, einer Vorbehandlung oder einem Behandlungsbedarf. Die Hauptdiagnosen bei den Verwandten umfassten affektive, somatoforme und stoffgebundene St & ouml;rungen und waren oft deckungsgleich mit denen des Indexpatienten. Bei Jugendlichen war das Risiko f & uuml;r betroffene Angeh & ouml;rige am h & ouml;chsten. Therapeuten von Minderj & auml;hrigen waren besser & uuml;ber deren famili & auml;re Situation informiert, w & auml;hrend Therapeuten von 30-59-J & auml;hrigen am wenigsten wussten. Schlussfolgerung: Die niedrigere Rate betroffener Angeh & ouml;riger bei Erwachsenen ist h & ouml;chstwahrscheinlich auf eine Unterbewertung zur & uuml;ckzuf & uuml;hren und bedarf weiterer Untersuchungen.

Abstract Background The reasons for developing depression are not fully understood. However, it is known that the serotonergic system plays a role in the etiology, but the endocannabinoid system receives attention. Method In this study, 161 patients with a depressive disorder and 161 healthy participants were examined for the distribution of the CNR1 rs4940353, 5‐HT2A rs6311, and 5‐HT1A rs6295 by high‐resolution melting genotyping. The concentration of arachidonoyl ethanolamide (AEA) and 2‐arachidonoylglycerol (2‐AG) in the blood was measured by liquid chromatography–tandem mass spectrometry. Additionally, depression and anxiety symptoms were evaluated based on self‐questionnaires. Fifty‐nine patients participated in a second appointment to measure the concentration of AEA, 2‐AG, and symptoms of depression and anxiety. Results We observed higher AEA and decreased 2‐AG concentrations in patients with depression compared to healthy participants. During the treatment, the concentrations of AEA and 2‐AG did not change significantly. In patients higher symptoms of anxiety correlated with lower concentrations of 2‐AG. Gender differences were found concerning increased 2‐AG concentration in male patients and increased anxiety symptoms in female patients. Genotypic variations of 5‐HT1A rs6295 and 5‐HT2A rs6311 are associated with altered serotonergic activity and serotonin content in patients. Conclusion In conclusion, it seems that the endocannabinoid system, especially the endocannabinoids 2‐AG and AEA, and genetic variations of the 5‐HT1A and 5‐HT2A could play a role in patients with depression and may be involved in a depressive disorder.

The serotonergic and the endocannabinoid system are involved in the etiology of depression. Depressive patients exhibit low serotonergic activity and decreased level of the endocannabinoids anandamide (AEA) and 2-arachidonylglycerol (2AG). Since the cannabinoid (CB) 1 receptor is activated by endogenous ligands such as AEA and 2AG, whose concentration are controlled by the fatty acid amide hydrolase (FAAH) and monoacylglycerol lipase, respectively, we investigated the effects on serotonergic utilization. In this study, we investigated the impact of the rs1049353 single-nucleotide polymorphism (SNP) of the cannabinoid receptor 1 (CNR1) gene, which codes the endocannabinoid CB1 receptor, and the rs324420 SNP of the FAAH gene on the serotonergic and endocannabinoid system in 59 healthy volunteers. Serotonergic activity was measured by loudness dependence of auditory-evoked potentials (LDAEP). Plasma concentrations of AEA, 2AG and its inactive isomer 1AG were determined by mass spectrometry. Genotyping of two SNPs (rs1049353, rs344420) was conducted by polymerase chain reaction (PCR) and differential enzymatic analysis with the PCR restriction fragment length polymorphism method. Genotype distributions by serotonergic activity or endocannabinoid concentration showed no differences. However, after detailed consideration of the CNR1-A-allele-carriers, a reduced AEA (A-allele-carrier M = 0.66, SD = 0.24; GG genotype M = 0.72, SD = 0.24) and 2AG (A-allele-carriers M = 0.70, SD = 0.33; GG genotype M = 1.03, SD = 0.83) plasma concentration and an association between the serotonergic activity and the concentrations of AEA and 2AG has been observed. Our results suggest that carriers of the CNR1-A allele may be more susceptible to developing depression.

Benzodiazepines (BZD) and Z-drugs (ZD) are often prescribed to treat psychiatric disorders. Despite the risk of dependency and serious adverse events, they are increasingly prescribed to outpatients. Yet little is known about the prescription to inpatients. In this article, we analyze the BZD and ZD prescription patterns in the routine data of 913 psychiatric and somatic inpatients treated in Bochum, Germany. BZD were prescribed more often as regular medication in psychiatry and ZD in somatic hospitals. ZD were more often used on demand, by female patients, and combined with other substances. Both were frequently prescribed to older adults, especially as part of somatic treatment and in combination with opioids. Prescription of sedative hypnotics is frequent in psychiatric and somatic inpatients. Their use seems to be partially independent of recorded psychiatric indications.

Introduction: Attention deficit hyperactivity disorder (ADHD) is a mental disorder that was once thought to occur only in children. Meanwhile, it is known that adults can also be affected. The first-line drug in children and adults to treat symptoms of inattention, impulsivity, lack of self-regulation, and hyperactivity is methylphenidate (MPH). Known adverse effects of MPH include cardiovascular problems, such as elevated blood pressure and heart rate. Therefore, biomarkers to monitor potential cardiovascular side effects of MPH are needed. The L- Arginine/Nitric oxide (Arg/NO) pathway is involved in noradrenaline and dopamine release as well as in normal cardiovascular functioning and is therefore a prime candidate for the search of biomarkers. The aim of the present study was to investigate the Arg/NO pathway as well as oxidative stress in adult ADHD patients in plasma and urine and the potential influence of MPH medication.Methods: In plasma and urine samples of 29 adults with ADHD (39.2 & PLUSMN; 10.9 years) and 32 healthy adults serving as controls (CO) (38.0 & PLUSMN; 11.6 years) the major NO metabolites nitrite and nitrate, Arg, the NO synthesis inhibitor asymmetric dimethylarginine (ADMA) and its major urinary metabolite dimethylamine (DMA) as well as malondialdehyde (MDA) were measured by gas chromatography-mass spectrometry.Results: Of the 29 patients with ADHD 14 were currently without MPH treatment (-MPH) and 15 were treated with MPH (+MPH). Plasma nitrate concentrations were significantly higher in patients not treated with MPH vs. CO (-MPH 60.3 & mu;M [46.2-76.0] vs. CO 44.4 & mu;M [35.0-52.7]; p = 0.002), while plasma nitrite tended to be higher in-MPH patients (2.77 & mu;M [2.26-3.27]) vs. CO (2.13 & mu;M [1.50-2.93]; p = 0.053). Additionally, plasma creat-inine concentrations were significantly different, with-MPH showing significantly higher concentrations than the other two groups (-MPH 141 & mu;M [128-159]; +MPH 96.2 & mu;M [70.2-140]; Co 75.9 & mu;M [62.0-94.7]; p < 0.001). Urinary creatinine excretion tended to be lowest in-MPH group vs. +MPH and CO (-MPH 11.4 & PLUSMN; 8.88 mM; +MPH 20.7 & PLUSMN; 9.82 mM; 16.6 & PLUSMN; 7.82 mM; p = 0.076). None of the other metabolites, including MDA, a marker of oxidative stress, showed a difference between the groups. Conclusion: Adult patients with ADHD, who are not treated with MPH (-MPH), showed varied Arg/NO pathway, but Arg bioavailability seemed to be consistent over the groups. Our findings imply that urinary reabsorption may be increase and/or excretion of nitrite and nitrate may be decreased in ADHD, resulting in an increase in the plasma concentration of nitrite. MPH seems to partially reverse these effects by not yet known mechanisms, and does not affect oxidative stress.

According to the monoamine hypothesis, the development of depression is associated with dysfunctions of the serotonergic system. Alterations in the serotonin transporter gene (5-HTTLPR), the serotonergic activity in the brain, and the content of serotonin (5-HT) have been related to depression and were examined separately by previous studies. This study investigates these parameters in 89 depressed patients and 89 healthy participants. We investigated the serotonergic activity measured by the loudness dependence of auditory evoked potentials (LDAEP). In addition to the examination of the serotonin content (serum and platelet), enzyme-linked immunosorbent assays (ELISA) were used and 5-HTTLPR genotypes were analyzed. We observed a lower serotonin content in patients compared to healthy participants. Further, we noticed a correlation between anxiety and depression-associated symptoms with serotonergic activity. Patients treated with SSRI/SNRI showed decreased contents of serum serotonin compared to patients without any psychotropic medication or other psychotropic medications. Since the serotonergic activity, peripheral serotonin content, and 5-HTTLPR were unrelated, the results suggest independent alterations of central and peripheral serotonergic systems in depression. In line with this finding, serotonergic activity was related to anxiety and depression symptoms. Furthermore, the applied medication seems to influence serum serotonin content in patients with depression.

BACKGROUND: The newly developed app TellUs is a digital offering for psy-chiatric outpatient treatment that includes diagnostic and therapeutic tools. The aim of this study was to test the clinical efficiency and patient satisfaction of TellUs. METHODS: Sixty-four patients with depressive disorder took part in the study for 3 months. The intervention group was treated digitally with TellUs and the control group received visiting treatment (treatment as usual) during that time. RESULTS: In both groups, a significant decrease of depressive symptoms and general strain through psychological symptoms, along with an increase of quality of life in the psychological domain, was shown. Furthermore, both groups were highly satisfied with the treatment. CONCLUSIONS: TellUs was shown to be equivalent to treatment as usual in terms of clinical efficiency and patient satisfaction.

As early detection of symptoms in the subclinical to clinical psychosis spectrum may improve health outcomes, knowing the probabilistic susceptibility of developing a disorder could guide mitigation measures and clinical intervention. In this context, polygenic risk scores (PRSs) quantifying the additive effects of multiple common genetic variants hold the potential to predict complex diseases and index severity gradients. PRSs for schizophrenia (SZ) and bipolar disorder (BD) were computed using Bayesian regression and continuous shrinkage priors based on the latest SZ and BD genome-wide association studies (Psychiatric Genomics Consortium, third release). Eight well-phenotyped groups (n = 1580; 56% males) were assessed: control (n = 305), lower (n = 117) and higher (n = 113) schizotypy (both groups of healthy individuals), at-risk for psychosis (n = 120), BD type-I (n = 359), BD type-II (n = 96), schizoaffective disorder (n = 86), and SZ groups (n = 384). PRS differences were investigated for binary traits and the quantitative Positive and Negative Syndrome Scale. Both BD-PRS and SZ-PRS significantly differentiated controls from at-risk and clinical groups (Nagelkerke’s pseudo-R2: 1.3–7.7%), except for BD type-II for SZ-PRS. Out of 28 pairwise comparisons for SZ-PRS and BD-PRS, 9 and 12, respectively, reached the Bonferroni-corrected significance. BD-PRS differed between control and at-risk groups, but not between at-risk and BD type-I groups. There was no difference between controls and schizotypy. SZ-PRSs, but not BD-PRSs, were positively associated with transdiagnostic symptomology. Overall, PRSs support the continuum model across the psychosis spectrum at the genomic level with possible irregularities for schizotypy. The at-risk state demands heightened clinical attention and research addressing symptom course specifiers. Continued efforts are needed to refine the diagnostic and prognostic accuracy of PRSs in mental healthcare.

Alterations in peripheral serotonin concentrations and an imbalanced immune system have been reported in patients with depression. Cytokines and T regulatory (Treg) cells may play an important role in the development of depression. This study investigates the levels of cytokines and Treg cells, as well as the concentration of serotonin (5‐HT) in the blood of 89 patients suffering from depression and 89 healthy participants between two acquisitions. We investigated the state of health before (T1) and after (T2) psychological and pharmacological therapy. Both cytokine (IL‐6, IL‐10, TNF‐α, and INF‐γ) and 5‐HT levels in the blood were measured by enzyme‐linked immunosorbent assays. The levels of CD4 + CD25 + Treg cells were determined by flow cytometric analysis. Patients with depression showed significantly higher serum levels of IL‐6 and INF‐γ, no altered serum levels of IL‐10 and TNF‐α, and decreased platelet and serum 5‐HT levels compared with healthy participants at the first acquisition. In addition, the symptoms of depression and anxiety, the TNF‐α level, and the amount of CD4 + CD25 + cells in the blood were decreased from the first to the second acquisition. Further, a correlation between IL‐6 and platelet 5‐HT has been observed in patients. An imbalance of the immune system in patients with depression and an association of the serotonergic system and cytokines were observed. These results indicate that the development of depression might be related to several interacting proteins, including cytokines and 5‐HT, and the treatment affects imbalances of these factors.

Abstract Background and Aims People with mental illness have worse physical health and reduced life expectancy compared to the general population. Nevertheless, their medical care is often insufficient. The present study aimed to investigate the somatic status of people with mental illness with a focus on somatic diagnoses, metabolic risk factors, regular somatic care, and routine check‐ups. Methods This study used a 14‐item questionnaire to survey the somatic care situation of psychiatric university hospital patients. Main survey topics were psychiatric and somatic diagnoses, metabolic risk factors, regular somatic care, and routine check‐ups. Results Four‐hundred and thirty‐five people with mental illness (48.3% male, mean age 45.4 years) were included. More than three quarters of the participating people with mental illness had access to a general practitioner. People with affective and anxiety disorders reported significantly more contact with medical specialists for somatic diseases, but schizophrenic patients did not receive enough care. Not all people with mental illness and on psychiatric medication received regular somatic care. Somatic diseases increased with number of diagnoses, and the duration of the psychiatric illness was positively correlated with treatment motivation. Conclusion The observed unmet medical needs in this study might reflect the lack of treatment motivation in people with mental illness, but could also represent their obstacles to access care as well as a suboptimal communication between the treating psychiatrist and the referring general practitioner. Increasing awareness of somatic diseases in psychiatric patients and easier access to somatic care have to be implemented in psychiatric clinical routine. The risk of stigmatization in somatic institutions and the lack of self‐care management in people with mental illness are complicating factors.

Attention deficit hyperactivity disorder (ADHD) is a common pediatric psychiatric disorder, frequently treated with methylphenidate (MPH). Recently, MPH’s cardiovascular safety has been questioned by observational studies describing an increased cardiovascular risk in adults and blood pressure alterations in children. We considered members of the L-arginine (Arg)/nitric oxide (NO) pathway as possible early cardiovascular risk factors in pediatric ADHD children. They include the NO metabolites, nitrite and nitrate, the NO precursor Arg, and asymmetric dimethylarginine (ADMA), an endogenous NO synthase (NOS) inhibitor and a cardiovascular risk factor in adults. We conducted a prospective clinical trial with 42 ADHD children (aged 6–16 years) with (n = 19) and without (n = 23) MPH treatment. Age-matched children without ADHD (n = 43) served as controls. All plasma and urine metabolites were determined by gas chromatography-mass spectrometry. We observed higher plasma nitrite and lower plasma ADMA concentrations in the ADHD children. MPH-treated ADHD children had higher plasma nitrite concentrations than MPH-untreated ADHD children. As NOS activity is basally inhibited by ADMA, MPH treatment seems to have decreased the inhibitory potency of ADMA. Percentiles of systolic blood pressure were higher in MPH-treated ADHD children. The underlying mechanisms and their implications in the MPH therapy of pediatric ADHD with MPH remain to be elucidated in larger cohorts.

ImportanceIdentifying psychosis subgroups could improve clinical and research precision. Research has focused on symptom subgroups, but there is a need to consider a broader clinical spectrum, disentangle illness trajectories, and investigate genetic associations.ObjectiveTo detect psychosis subgroups using data-driven methods and examine their illness courses over 1.5 years and polygenic scores for schizophrenia, bipolar disorder, major depression disorder, and educational achievement.Design, Setting, and ParticipantsThis ongoing multisite, naturalistic, longitudinal (6-month intervals) cohort study began in January 2012 across 18 sites. Data from a referred sample of 1223 individuals (765 in the discovery sample and 458 in the validation sample) with DSM-IV diagnoses of schizophrenia, bipolar affective disorder (I/II), schizoaffective disorder, schizophreniform disorder, and brief psychotic disorder were collected from secondary and tertiary care sites. Discovery data were extracted in September 2016 and analyzed from November 2016 to January 2018, and prospective validation data were extracted in October 2018 and analyzed from January to May 2019.Main Outcomes and MeasuresA clinical battery of 188 variables measuring demographic characteristics, clinical history, symptoms, functioning, and cognition was decomposed using nonnegative matrix factorization clustering. Subtype-specific illness courses were compared with mixed models and polygenic scores with analysis of covariance. Supervised learning was used to replicate results in validation data with the most reliably discriminative 45 variables.ResultsOf the 765 individuals in the discovery sample, 341 (44.6%) were women, and the mean (SD) age was 42.7 (12.9) years. Five subgroups were found and labeled as affective psychosis (n = 252), suicidal psychosis (n = 44), depressive psychosis (n = 131), high-functioning psychosis (n = 252), and severe psychosis (n = 86). Illness courses with significant quadratic interaction terms were found for psychosis symptoms (R2 = 0.41; 95% CI, 0.38-0.44), depression symptoms (R2 = 0.28; 95% CI, 0.25-0.32), global functioning (R2 = 0.16; 95% CI, 0.14-0.20), and quality of life (R2 = 0.20; 95% CI, 0.17-0.23). The depressive and severe psychosis subgroups exhibited the lowest functioning and quadratic illness courses with partial recovery followed by reoccurrence of severe illness. Differences were found for educational attainment polygenic scores (mean [SD] partial η2 = 0.014 [0.003]) but not for diagnostic polygenic risk. Results were largely replicated in the validation cohort.Conclusions and RelevancePsychosis subgroups were detected with distinctive clinical signatures and illness courses and specificity for a nondiagnostic genetic marker. New data-driven clinical approaches are important for future psychosis taxonomies. The findings suggest a need to consider short-term to medium-term service provision to restore functioning in patients stratified into the depressive and severe psychosis subgroups.

Background: Patients with severe mental illness (SMI) have worse physical health and reduced life expectancy compared to the general population. Individuals with mental disorders also more often suffer from influenceable risk factors such as obesity, smoking, diabetes, arterial hypertension and dyslipidaemia. Moreover, they have more difficulties to access health services and fewer opportunity for cardiovascular risk screening and prevention than would be expected in a non-psychiatric population. Therefore, we aimed to investigate the somatic care situation of psychiatric patients. Methods: This study used a 14-item-questionnaire to survey the physical status of hospital patients with SMI. Main subjects were psychiatric and somatic diagnoses, metabolic risk factors, regular somatic care (by general practitioners and specialists), and routine check-ups. Data collection underwent pseudonymisation and descriptive analysis. Outcome: 350 patients (49.1% male, mean age 46,31 ±16,02 years) were included. More than three quarters had access to a general practitioner (78.2%), whom most of the patients reported to see quite regularly. Patients with affective and anxiety disorders reported significantly more contact with medical specialists for somatic diseases, compared to other diagnostic subgroups. Nearly all of the patients received psychiatric medication, but some had never before a blood sample taken or received an ecq. Interpretation: Although the access to a general practitioner is quite high, it can be concluded, that the interaction of patient, provider, and system factors has created a situation in which access to and quality of health care is problematic for individuals with especially a SMI. Funding: None. Declaration of Interest: The authors declare that they have no conflict of interest. Ethical Approval: The analysis has been performed in accordance with the Declaration of Helsinki. The Ruhr-University Bochum ethics committee approved the analysis, and written informed consent was obtained from the patient.

Introduction Dietary supplements are very widely used in the general population and there is a growing market for them, which is against the recommendations of the German Society for Nutrition. There is some evidence that dietary supplements are useful additions in the treatment of psychiatric disorders. This review is an overview of available practical knowledge regarding the use of supplements in psychiatric treatment. In particular, the review focused on the diagnosis of depression and anxiety in terms of supplement treatment. Methods This is a narrative review of the evidence regarding supplements for treating anxiety and depression. We searched PubMed to 2018. Two reviewers screened the citations and abstracted the data. Phytopharmaceutical attends and animal-based data were excluded. Results There are strong indications regarding the impact of supplements on the selected psychiatric disorders, but at this time, there only a few randomized clinical studies available, so evidence for these findings is quite low. However, it must be noted that there are strong hints for a relationship between vitamin D level and depression. Furthermore, various supplements have got potentially an influence on the characteristics of depression. Discussion This review summarizes the current knowledge about supplements when used for some psychiatric conditions, but the data does not provide compelling evidence in any direction. There are only indications that there is an influence of supplements on psychiatric diseases. In support of this, there is further need for high-quality studies in this field. Reviews on other diagnoses, such as schizophrenia and dementia, will be part of further work.

The cover image is based on the Research Article A longitudinal approach to biological psychiatric research: The PsyCourse study by Monika Budde et al., DOI: 10.1002/ajmg.b.32639.

In current diagnostic systems, schizophrenia and bipolar disorder are still conceptualized as distinct categorical entities. Recently, both clinical and genomic evidence have challenged this Kraepelinian dichotomy. There are only few longitudinal studies addressing potential overlaps between these conditions. Here, we present design and first results of the PsyCourse study (N = 891 individuals at baseline), an ongoing transdiagnostic study of the affective-to-psychotic continuum that combines longitudinal deep phenotyping and dimensional assessment of psychopathology with an extensive collection of biomaterial. To provide an initial characterization of the PsyCourse study sample, we compare two broad diagnostic groups defined by the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) classification system, that is, predominantly affective (n = 367 individuals) versus predominantly psychotic disorders (n = 524 individuals). Depressive, manic, and psychotic symptoms as well as global functioning over time were contrasted using linear mixed models. Furthermore, we explored the effects of polygenic risk scores for schizophrenia on diagnostic group membership and addressed their effects on nonparticipation in follow-up visits. While phenotypic results confirmed expected differences in current psychotic symptoms and global functioning, both manic and depressive symptoms did not vary between both groups after correction for multiple testing. Polygenic risk scores for schizophrenia significantly explained part of the variability of diagnostic group. The PsyCourse study presents a unique resource to research the complex relationships of psychopathology and biology in severe mental disorders not confined to traditional diagnostic boundaries and is open for collaborations.

Despite marked costs and limited evidence regarding effectiveness, occupational therapy (OT) is widely applied in psychiatric settings and financed by health insurance companies in European countries. This pilot study investigated the antidepressive effects of adjuvant OT for patients with major depression in a 6-week inpatient setting, stratified for females and males.

Coercive measures in psychiatry are a controversial topic and raise ethical, legal and clinical issues. Involuntary admission of patients is a long-lasting problem and indicates a problematic pathway to care situations within the community, largely because personal freedom is fundamentally covered by the UN declaration of human rights and the German constitution.

Background: Germany provides a wide range of highly developed mental health care to its citizens. The aim of this study was to identify factors influencing the voluntariness of admissions to psychiatric hospitals. Especially the impact of demographic factors of the region, characteristics of the psychiatric hospitals and characteristics of the psychosocial services was analyzed. Method: A retrospective analysis of hospital admission registers from 13 German adult psychiatric hospitals in 2009 was conducted. Public data on the regional psychiatric accommodation and demographic situation were added. Hospitals were dichotomously divided according to their index of involuntary admissions. Group comparisons were performed between the clinics with low and high involuntary admission indices. Analysis was conducted with clinical, psychiatric provision and demographic data related to inpatients in the Landschaftsverbands Westfalen-Lippe (LWL)-PsychiatryNetwork. Results: Especially the range of services provided by the social-psychiatric services in the region such as number of supervised patients and home visits had an influence on the proportion of involuntary admissions to a psychiatric hospital. Some demographic characteristics of the region such as discretionary income showed further influence. Contrary to our expectations, the characteristics of the individual hospital seem to have no influence on the admission rate. Conclusion: Social-psychiatric services show a preventive impact on involuntary acute psychiatry interventions. Sociodemographic factors and patient variables play a role with regard to the number of involuntary hospitalizations, whereas characteristics of hospitals seemed to play no role.

Involuntary psychiatric admission is a central issue in mental health care, especially in the treatment of children and adolescents. Its legal regulations do not only differ between European countries, but also on a federal level. Only few studies so far dealt with rates of involuntary admission (RIA), mainly focusing on adults, rather than children and adolescents. None of the studies analyzed this topic in a large cohort. The aim of this regional cross-sectional study was to compare voluntary and involuntary admissions in child and adolescent psychiatry (CAP) regarding personal and admission characteristics. Furthermore, risk factors and predictors of involuntary admission should be identified. A retrospective analysis of hospital admission registers from three major German CAP hospitals over a period of 6 years (2004-2009) was conducted (N = 10,547 inpatients). Group comparisons between involuntarily and voluntarily treated minors and a logistic regression to determine predictors of legal status were performed. Information on harm to self or others prior to the admission, medication and clinical outcome was not available due to data structure. 70.8 % of patients were voluntarily and 29.2 % involuntarily admitted. Both subsamples comprised more males. The RIA decreased consistently over the years, ranging from 25.7 to 32.4 %. The strongest predictor of being admitted involuntarily was suffering from mental retardation (OR = 15.74). Adolescence, substance abuse, psychotic disorders and admission on duty time were also strongly associated (OR > 3). In this first large cohort study on involuntary treatment of children and adolescents in Germany, about every fourth patient was treated involuntarily. Certain personal and disease-related factors increased the risk. Commitment laws and other legal instruments for regulating involuntary placements are inconsistent and a standardized description or systematic analysis is needed. The influence of demographic, institutional variables and care and health services aspects should also be investigated.