Variations in involuntary admission rates at three psychiatry centres in the Dublin Involuntary Admission Study (DIAS): Can the differences be explained?

Beyond Patient Characteristics: A Narrative Review of Contextual Factors Influencing Involuntary Admissions in Mental Health Care

Variations in the rates of involuntary admission (IA) reflect the influence of unexplained contextual variables that are typically too heterogeneous to be included in systematic reviews. This paper attempts to gather and analyze factors unrelated to the patients that have been linked to IA. The articles included in this review were selected by iteratively searching four electronic databases (PubMed, PsychINFO, EMBASE, and Web of Science). A total of 54 studies from 19 different countries and regions, including 14 European countries, the United States, Canada, China, Vietnam, and Taiwan, were selected. The factors were categorized as service-related factors, impactful events, seasonal and temporal factors, mental health legislation, staff factors, and public attitudes. The factors rarely act in isolation but rather interact and reinforce each other, causing a greater influence on IA. This paper explains how these factors present opportunities for robust and sustainable interventions to reduce IAs. The paper also identifies future directions for research, such as examining the effects of economic recessions. Enhancing global reporting standards is essential to validate future research and support further in-depth studies. The complexity of the factors influencing IA and the implicit role of society suggest that resolving it will require social change.

General and Case-Specific Approval of Coercion in Psychiatry in the Public Opinion

BACKGROUND

Psychiatric patients are subjected to considerable stigmatization, in particular, because they are considered aggressive, uncontrollable, and dangerous. This stigmatization might influence the approval of coercive measures in psychiatry by the public and healthcare professionals and might have an influence on the clinical practice of coercive measures. We examined whether the general approval of coercive measures for psychiatric patients with dangerous behaviors differs from case-specific approval.

METHOD

We conducted a representative survey of the general population (n = 2207) in the canton of Basel-Stadt, Switzerland. In total, 1107 participants assessed a case vignette depicting a fictitious character with a mental illness and indicated whether they would accept coercive measures (involuntary hospitalization, involuntary medication, and seclusion) for the person in the vignette. It was explicitly stated that within the last month, the fictitious character displayed no dangerous behavior (Vignette ND) or dangerous behavior (Vignette D). Another 1100 participants were asked whether they would approve coercive measures (involuntary hospitalization, involuntary medication, and seclusion) for psychiatric patients with dangerous behavior in general (General D), i.e., without having received or referring to a specific case vignette.

FINDINGS

The logistic regression model containing all variables explained 45% of the variance in approval of any type of coercive measures. Assessment of case vignettes without dangerous behavior (Vignette ND) was associated with significantly reduced approval of coercive measures compared to assessment of a case vignette with dangerousness (Vignette D), while approval for coercive measures in a person with mental health disorder with dangerous behavior in general (General D) was significantly higher than for the case vignette with dangerousness.

CONCLUSIONS

The general approval of coercive measures for people with mental disorders seems to differ depending on if the respondents are asked to give a general assessment or to examine a specific and detailed clinical case vignette, indicating an increased role of stigmatization when asking about generalized assessments. This may contribute to diverging findings on the acceptance of coercive measures in the literature and should be considered when designing future studies.

Compulsory psychiatric admissions in the canton of Basel-Stadt between September 2013 and April 2022: Analysis of the cantonal database of the Health Department of Basel-Stadt

BACKGROUND

According to federal and cantonal law, persons with an acute mental illness can be admitted to a psychiatric hospital or another suitable institution against their will, when other therapeutic options are not available or have been exhausted. In the canton of Basel-Stadt, this is the responsibility of public health officers employed by the division of Social Medicine of the cantonal Health Department.

AIMS

This study aims to elucidate which factors influence the decision-making of public health officers regarding compulsory admissions over the period from September 2013 to April 2022 in the canton of Basel-Stadt.

METHOD

Leveraging comprehensive clinical data from the health department of the canton Basel-Stadt (N = 5,'550), we estimated a mixed effects logistic regression model to identify factors contributing to the decision of public-health officers to compulsorily admit patients, while controlling for potential clustering effects among public health officers.

RESULTS

The risk for compulsory admissions was most strongly predicted by the presence of potential self-harm. In comparison, while being a strong predictor, potential harm to others played a considerably lesser role. Furthermore, psychiatric syndrome, previous compulsory admissions, and the specific context of evaluation were significant predictors. Finally, we found no meaningful personal bias among public health officers.

CONCLUSION

The results suggest that public health officers' decision-making regarding compulsory admissions focuses on preventing self-harm and, to a lesser degree, harm to others. This indicates that such measures are only used as a measure of last resort, which is in line with current evidence regarding the detrimental effects of compulsory measures on treatment outcomes in psychiatry. Our findings suggest that all relevant stakeholders, including the police, share this perspective. Decision-making regarding compulsory admissions was mostly free of personal biases, suggesting adherence to shared professional standards by public health officers.

‘It Just Feels Like an Invasion’: Black First-Episode Psychosis Patients’ Experiences With Coercive Intervention and Its Influence on Help-Seeking Behaviours

Studies from the United States and United Kingdom show that Black patients are disproportionately diagnosed with psychosis and receive excess coercive medical intervention. There has been little discussion of this topic in Canada, and of how coercive interventions may have influenced Black patient attitudes towards mental health services. To address these issues, semi-structured interviews were administered to five Black men with first-episode psychosis (FEP) to (a) explore their experiences with coercive interventions and (b) describe how these experiences may have influenced help-seeking behaviours. Interpretative phenomenological analysis (IPA) was used to analyze the data. Four core themes and four additional themes emerged from the interviews. Patients described loneliness, not being heard, police contact and forced medication as influencing their attitudes towards mental health care. Further research is needed to develop reparative strategies to encourage reflection about and awareness of coercive intervention among Black FEP patients.

Involuntary psychiatric admission in Cyprus: A descriptive correlational study

INTRODUCTION

Studies on the clinical and socio-demographic characteristics of those involuntarily admitted to psychiatric settings could help professionals and researchers to develop effective, targeted interventions, alternative to compulsory psychiatric care.

AIM

The association between socio-demographic and clinical characteristics in adults under involuntary hospitalization for psychiatric treatment in the Republic of Cyprus was assessed.

METHOD

This was a descriptive, cross-sectional and correlational study. Data collection was achieved (December 2016 to February 2018) via a census sampling method. Socio-demographic and clinical data of individuals involuntarily admitted to the reference psychiatric hospital of Cyprus with psychotic symptomatology were recorded.

RESULTS

The sample encompassed 144 females and 262 males. The most frequent diagnosis was schizophrenia or a relevant psychotic disorder (72.9%). The most frequent cause of admission was "Disorganized behaviour" along with non-adherence to pharmacotherapy (53.7%). Approximately 42.8% of the participants confirmed positive substance use history, which was more frequently reported in males than in females (88.5% vs. 11.5%, respectively, p < 0.001). Additionally, males were more frequently admitted due to Disorganized behaviour with substance use compared to females (31.3% vs. 4.9%, respectively, p < 0.001), while females were more frequently admitted due to d"Disorganized behaviour with non-adherence to pharmacotherapy (70.1% vs. 44.7%, respectively, p < 0.001). Also, males were more frequently involuntarily hospitalized due to suicidal/self-harming behaviour compared to females (12.2% vs. 5.6%, respectively, p = 0.031).

CONCLUSION

Gender differences were noted in relation to clinical characteristics of the participants, highlighting the need for gender-specific interventions to decrease compulsory psychiatric care, including enhancement of adherence to therapy.

Influence of mental health professionals' attitudes and personality traits on decision-making around coercion: Results from an experimental quantitative survey using case vignettes

OBJECTIVE

Research on coercion in mental healthcare has recently shifted to the investigation of subjective aspects, both on the side of the people with mental disorders affected and the staff members involved. In this context, the role of personality traits and attitudes of staff members in decision-making around coercion is increasingly being assessed. This study aimed to examine the role of staff attitudes towards coercion and staff members' personality traits in decision-making around coercion in an experimental setting.

METHODS

We assessed the attitudes towards coercion and (general) personality traits of mental health professionals in psychiatric hospitals with a quantitative survey. Furthermore, we developed case vignettes representing cases in a 'grey zone' and included them in the survey to assess staff members' decisions about coercion in specific situations.

RESULTS

A general approving attitude towards coercion significantly influenced decisions around coercion in individual cases-resulting in a more likely approval of applying coercion in the cases described in the vignettes. Personality traits did not seem to be relevant in this regard.

CONCLUSION

Strategies to reduce coercion in mental healthcare institutions should focus more on the role of staff attitudes and encourage staff members to reflect on them critically.

Approval of Coercion in Psychiatry in Public Perception and the Role of Stigmatization

Background: Coercion is routinely used in psychiatry. Its benefits and drawbacks are controversially debated. In addition, the majority of persons with mental health problems are exposed to stigmatization and are assumed to be dangerous. Stigmatization is associated with negative consequences for individuals with mental illness such as disapproval, social rejection, exclusion, and discrimination. Being subjected to coercive measures can increase the stigmatization of the affected persons, and stigmatization might lead to higher approval for coercion. Aims of the Study: This study aims to examine the approval for coercive measures in psychiatry by the general public, and to explore its relation with person- and situation-specific factors as well as with stigmatization. Method: We conducted a representative survey of the general population (N = 2,207) in the canton of Basel-Stadt, Switzerland. Participants were asked to read a vignette depicting psychopathological symptoms of a fictitious character and indicate whether they would accept coercive measures for the person in the vignette. Desire for social distance and perceived dangerousness were assessed as measures of stigmatization. Findings: The person in the case vignette exhibiting dangerous behavior, showing symptoms of a psychotic disorder, being perceived as dangerous, and treatment being understood as helpful increased approval of coercion in general, while familiarity of the respondents with mental illness decreased approval. Conclusions: The public attitude regarding the approval of coercion in psychiatry is highly differentiated and largely follows the current legal framework and medical treatment guidelines. Higher approval occurred in situations of self-harm or harm to others and when coercive measures were thought to have a beneficial effect for the affected persons. A considerable part of the approval for coercion is predicted by stigmatization. With the increasing severity of coercive measures, the influence of person- and situation-specific factors and of familiarity with mental illness decreased and generalizing and stigmatizing attitudes became stronger predictors for the approval of more severe measures.

Factors associated with involuntary psychiatric hospitalization in Portugal

Background

Identifying which factors contribute to involuntary psychiatric hospitalization may support initiatives to reduce its frequency. This study examines the sociodemographic, clinical, and contextual factors associated with involuntary hospitalization of patients from five Portuguese psychiatric departments in 2002, 2007 and 2012.

Methods

Data from all admissions were extracted from clinical files. A Poisson generalized linear model estimated the association between the number of involuntary hospitalizations per patient in one year and sociodemographic, clinical, and contextual factors.

Results

An increment of involuntary hospitalizations was associated with male gender [exp(\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\widehat{\upbeta }$$\end{document}β^) = 1.31; 95%CI 1.06–1.62, p < 0.05], having secondary and higher education [exp(\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\widehat{\upbeta }$$\end{document}β^) = 1.45; 95%CI 1.05–2.01, p < 0.05, and exp(\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\widehat{\upbeta }$$\end{document}β^) = 1.89; 95%CI 1.38–2.60, p < 0.001, respectively], a psychiatric diagnosis of psychosis [exp(\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\widehat{\upbeta }$$\end{document}β^) = 2.02; 95%CI 1.59–2.59, p < 0.001], and being admitted in 2007 and in 2012 [exp(\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\widehat{\upbeta }$$\end{document}β^) = 1.61; 95%CI 1.21–2.16, p < 0.01, and exp(\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\widehat{\upbeta }$$\end{document}β^) = 1.73; 95%CI 1.31–2.32, p < 0.001, respectively]. A decrease in involuntary hospitalizations was associated with being married/cohabitating [exp(\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\widehat{\upbeta }$$\end{document}β^) = 0.74; 95%CI 0.56–0.99, p < 0.05], having experienced a suicide attempt [exp(\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\widehat{\upbeta }$$\end{document}β^) = 0.26; 95%CI 0.15–0.42, p < 0.001], and belonging to the catchment area of three of the psychiatric services evaluated [exp(\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\widehat{\upbeta }$$\end{document}β^) = 0.65; 95%CI 0.49–0.86, p < 0.01, exp(\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\widehat{\upbeta }$$\end{document}β^) = 0.67; 95%CI 0.49–0.90, p < 0.01, and exp(\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\widehat{\upbeta }$$\end{document}β^) = 0.67; 95%CI 0.46–0.96, p < 0.05 for Hospital de Magalhães Lemos, Centro Hospitalar Psiquiátrico de Lisboa and Unidade Local de Saúde do Baixo Alentejo, respectively].

Conclusions

The findings suggest that involuntary psychiatric hospitalizations in Portugal are associated with several sociodemographic, clinical, and contextual factors. This information may help identify high-risk patients and inform the development of better-targeted preventive interventions to reduce these hospitalizations.

Voluntary and involuntary admissions with schizoaffective disorder: do they differ from schizophrenia?

OBJECTIVES

Schizoaffective disorder and schizophrenia are common presentations to psychiatry services. Research to date has focussed on hypothesised biological differences between these two disorders. Little is known about possible variations in admission patterns. Our study compared demographic and clinical features of patients admitted voluntarily and involuntarily with diagnoses of schizoaffective disorder or schizophrenia to three psychiatry admission units in Ireland.

METHODS

We studied all admissions to three acute psychiatry units in Ireland for periods between 1 January 2008 and 31 December 2018. We recorded demographic and clinical variables for all admissions. Voluntary and involuntary admissions of patients with schizoaffective disorder were compared to those with schizophrenia.

RESULTS

We studied 5581 admissions to the study units for varying periods between January 2008 and December 2018, covering a total of 1 976 154 person-years across the 3 catchment areas. The 3 study areas had 218.8, 145.5 and 411.2 admissions per 100 000 person-years, respectively. Of the 5581 admissions over the study periods, schizoaffective disorder accounted for 5% (n = 260) and schizophrenia for 17% (n = 949). Admissions with schizoaffective disorder were significantly more likely to be female and older, and less likely to have involuntary admission status, compared to those with schizophrenia. As first admissions were not distinguished from re-admissions in this dataset, these findings merit further study.

CONCLUSIONS

Admissions with a schizoaffective disorder differ significantly from those with schizophrenia, being, in particular, less likely to be involuntary admissions. This suggests that psychotic symptoms might be a stronger driver of involuntary psychiatry admission than affective symptoms.

Identification of risk factors for involuntary psychiatric hospitalization: using environmental socioeconomic data and methods of machine learning to improve prediction

BACKGROUND

The purpose of this study was to identify factors associated with a high risk of involuntary psychiatric in-patient hospitalization both on the individual level and on the level of mental health services and the socioeconomic environment that patients live in.

METHODS

The present study expands on a previous analysis of the health records of 5764 cases admitted as in-patients in the four psychiatric hospitals of the Metropolitan City of Cologne, Germany, in the year 2011 (1773 cases treated under the Mental Health Act and 3991 cases treated voluntarily). Our previous analysis had included medical, sociodemographic and socioeconomic data of every case and used a machine learning-based prediction model employing chi-squared automatic interaction detection (CHAID). Our current analysis attempts to improve the previous one through (1) optimizing the machine learning procedures (use of a different type of decision-tree prediction model (Classification and Regression Trees (CART) and application of hyperparameter tuning (HT)), and (2) the addition of patients' environmental socioeconomic data (ESED) to the data set.

RESULTS

Compared to our previous analysis, model fit was improved. Main diagnoses of an organic mental or a psychotic disorder (ICD-10 groups F0 and F2), suicidal behavior upon admission, admission outside of regular service hours and absence of outpatient treatment prior to admission were confirmed as powerful predictors of detention. Particularly high risks were shown for (1) patients with an organic mental disorder, specifically if they were retired, admitted outside of regular service hours and lived in assisted housing, (2) patients with suicidal tendencies upon admission who did not suffer from an affective disorder, specifically if it was unclear whether there had been previous suicide attempts, or if the affected person lived in areas with high unemployment rates, and (3) patients with psychosis, specifically those who lived in densely built areas with a large proportion of small or one-person households.

CONCLUSIONS

Certain psychiatric diagnoses and suicidal tendencies are major risk factors for involuntary psychiatric hospitalization. In addition, service-related and environmental socioeconomic factors contribute to the risk for detention. Identifying modifiable risk factors and particularly vulnerable risk groups should help to develop suitable preventive measures.

Socio-economic impact on involuntary admissions and coercive measures in psychiatric hospitals in Germany

OBJECTIVE

The present study aimed to characterize involuntary psychiatric admissions and coercive measures within psychiatric hospitals regarding their temporal development and processual aspects. Moreover, the influence of socio-economic factors on involuntary admissions and coercive measures was investigated.

METHODS

Different data sets from the federal state of North-Rhine Westphalia (NRW) were used in this study. In addition to a survey in which n = 33 hospitals responded (40.7%), official data from the Federal Health Ministry were analysed over a decade regarding involuntary admissions and coercive measures. These data were available for all n = 54 districts, respectively, all n = 81 psychiatric hospitals in NRW. Datasets were mainly analysed comparing different socio-economic clusters.

RESULTS

The hospital admission rate increased significantly over time (from 1.12 to 1.34 per 1000 inhabitants) within ten years. However, whereas the admission rates differed significantly between socio-economic clusters, the amount of coercive measures used in the hospitals did not. Compared to general psychiatry and addiction medicine, geriatric psychiatry had the highest amount of involuntary admissions (12.2% under public law, 14.1% under civil law). Furthermore, most coercive measures lasted at least an hour.

CONCLUSION

It seems that, despite intense discussions and enhanced efforts to reduce coercion, there are still some neglected aspects, such as the need for coercive measures and their duration, particularly in the geriatric psychiatric setting. In addition, the results show that further approaches to prevent involuntary admissions are needed to address other stakeholders beyond the hospitals and further aspects of the socio-economic environment.

The social-psychiatric service and its role in compulsory hospitalization

Coercive measures are a sensitive, much-discussed ethical and legal issue in the psychiatric context. Hence, the identification of their predictors and ways of prevention are of utmost importance. The present study aimed to determine the impact of the social-psychiatric services (SPS) in North Rhine Westphalia (NRW) on involuntary admissions according to the German Mental Health Act and to identify predictors for the reduction of these involuntary admissions. A dataset including details from 31 districts and 23 towns in NRW over a time period of 10 years (2005-2014) was analysed regarding the number of involuntary admissions, gender and age of admitted patients, and person/institution initiating the compulsory act. All 56 SPS in NRW were contacted for information on the number of clients/contacts, home visits, areas of responsibility and their involvement in involuntary admissions. Thirty SPS participated in the survey. We found a significant increase of involuntary admissions over time with significantly higher proportions of male patients and patients younger than 60 years in every year. Regarding the characteristics of SPS, a negative correlation between the number of clients contacting the SPS on their own initiative and low-income households was observed. Additionally, the number of clients contacting the SPS on their own initiative was significantly higher in districts/towns associated with lower involuntary admission rates. These data suggest that patient-based factors were of great importance in the context of involuntary admissions. Furthermore, the SPS and home treatment should be strengthened and intensified to achieve lower involuntary admission rates.

Gender, diagnosis and involuntary psychiatry admission in Ireland: A report from the Dublin Involuntary Admission Study (DIAS)

Involuntary admission and treatment are common, long-standing features of psychiatry but the relationships between gender, diagnosis and other features of involuntary treatment are not clear. We studied all voluntary and involuntary psychiatry admissions at Tallaght University Hospital, Dublin over 2 years (n = 1230). Admission rates in Tallaght were lower than national rates for all admissions (224.9 admissions per 100,000 population per year in Tallaght versus 376.8 nationally), voluntary admissions (194.0 versus 328.4) and involuntary admissions (30.9 versus 48.4). Compared to men, proportionately fewer admissions of admissions of women were involuntary (11% versus 16%) and women were more commonly diagnosed with affective (mood) disorders (29.5% of women versus 22.6% of men), neuroses (anxiety disorders) (14.0% versus 8.8%) and personality and behavioural disorders (18.0% versus 9.2%), and less commonly diagnosed with schizophrenia group disorders (21.8% versus 32.0%), alcohol disorders (2.9% versus 4.3%) and drug disorders (3.6% versus 8.1%). Schizophrenia group disorders accounted for a greater proportion of male (63.2%) than female (55.6%) involuntary admissions, and affective disorders accounted for a greater proportion of female (17.5%) than male (12.3%) involuntary admissions. Duration of admission was independently associated with, in order of strength of association, involuntary status, schizophrenia group disorders and increasing age, but duration of involuntary care was not associated with any of these factors. The chief gender-related features of involuntary psychiatry admission are that (a) proportionately fewer admissions of admissions of women are involuntary compared to men, and (b) diagnoses of affective disorders are more common in women, and schizophrenia group diagnoses more common in men. Future research could usefully explore gender differences in grounds for involuntary detention and police involvement in the involuntary admission process. Future research is also warranted into whether gender associations differ in older compared to younger involuntary patients.

A retrospective analysis of determinants of involuntary psychiatric in-patient treatment

BACKGROUND

The purpose of our study was to identify predictors of a high risk of involuntary psychiatric in-patient treatment.

METHODS

We carried out a detailed analysis of the 1773 mental health records of all the persons treated as in-patients under the PsychKG NRW (Mental Health Act for the state of North Rhine-Westphalia, Germany) in a metropolitan region of Germany (the City of Cologne) in 2011. 3991 mental health records of voluntary in-patients from the same hospitals served as a control group. We extracted medical, sociodemographic and socioeconomic data from these records. Apart from descriptive statistics, we used a prediction model employing chi-squared automatic interaction detection (CHAID).

RESULTS

Among involuntary patients, organic mental disorders (ICD10: F0) and schizophrenia and other psychotic disorders (ICD10: F2) were overrepresented. Patients treated as in-patients against their will were on average older, they were more often retired and had a migratory background. The Exhaustive CHAID analysis confirmed the main diagnosis to be the strongest predictor of involuntary in-patient psychiatric treatment. Other predictors were the absence of outpatient treatment prior to admission, admission outside of regular service hours and migratory background. The highest risk of involuntary treatment was associated with patients with organic mental disorders (ICD 10: F0) who were married or widowed and patients with non-organic psychotic disorders (ICD10: F2) or mental retardation (ICD10: F7) in combination with a migratory background. Also, referrals from general hospitals were frequently encountered.

CONCLUSIONS

We identified modifiable risk factors for involuntary psychiatric in-patient treatment. This implies that preventive measures may be feasible and should be implemented to reduce the rate of involuntary psychiatric in-patient treatment. This may include efforts to establish crisis resolution teams to improve out-patient treatment, train general hospital staff in deescalation techniques, and develop special programs for patients with a migratory background.

Predictors of Compulsory Re-admission to Psychiatric Inpatient Care

Objective: This prospective study addresses risk factors of compulsory re-admission focusing on the role of the patient's subjective symptom distress and perceived social support, based on comprehensive patient and external (clinicians, study staff) assessments. Methods: Of the baseline sample, 168 (71%) patients with serious mental disorders, who had been compulsorily admitted to psychiatric inpatient care, were followed over 24 months after discharge within the framework of a RCT. Results: During this time 36% had compulsory re-admissions; risk was highest immediately after discharge. Regression models identified a history of previous compulsory hospitalisations and compulsory admission due to endangerment of others as the predictors most strongly associated with the outcome. Patients diagnosed with a psychotic disorder or an emotionally instable or combined personality disorder were most likely to experience compulsory re-hospitalisation, with poor response to treatment further significantly increasing the risk. The patient ratings of subjective symptom distress or perceived social support had no predictive value for compulsory re-admission, and this study did not provide evidence for a significant prognostic relevance of sociodemographic background factors. Conclusions: The present findings suggest that within individual-level variables disease-related factors are essentially the strongest predictors, but including the patients' subjective perspective does not enhance the prediction of compulsory re-hospitalisation. The psychiatric treatment of patients with recurrent and often challenging behavioural problems, at the more severe end of the spectrum of mental disorders, deserves closer attention if the use of compulsory hospitalisation is to be reduced.