The goals and limitations of Israel's psychiatric case register

Patterns of psychiatric hospitalizations of Arab and Jewish adults with chronic psychotic disorders, before and after national mental health reforms, Israel, 1991-2016

BACKGROUND

Members of the Arab minority in Israel are at increased risk of developing mental illness, although less likely to seek care and have accessible treatment. This study compares trends in psychiatric hospitalizations between Arabs and Jews with chronic psychotic disorders, before and after introduction of the Community Rehabilitation of Persons with Mental Disability Law in 2000, and governmental recognition of the need to allocate resources for patients with co-occurring substance use disorder and mental illness in 2010.

METHODS

The National Psychiatric Case Registry provided data on 18,684 adults with schizophrenia/schizoaffective disorder, hospitalized in 1991-2016 (at least once in 2010-2015). Repeated-measures ANOVA was used to measure the effect (and interactions) of population-group (Arabs and Jews), time-period (Period1: 1991-2000, Period2: 2001-2009, Period3: 2010-2016) and sex, on average length of stay (LOS), annual number of hospitalizations and hospitalization days.

RESULTS

The proportion of Arab patients hospitalized with a diagnosis of chronic psychotic disorder (14.4%) was significantly lower than their proportion in the general population (21%), and their average age at first hospitalization (28.4 years) was older than that of Jewish inpatients (27.0 years). The average number of hospitalization days and LOS of Jewish patients were double that of Arab patients in Period1. Following implementation of the Rehabilitation Law, hospitalization days increased among Arab patients and decreased slightly among Jewish patients, such that by Period3 the average number of hospitalization days was similar among Jewish (41) and Arab (37) patients. The increase in hospitalization days among Arab patients was limited to men with no change noted among women. The number of hospitalization days among Arab women was about half that of Jewish women (p < 0.0001).

CONCLUSIONS

The findings reveal a narrowing of disparities in psychiatric hospitalizations between Arab and Jewish patients in Israel over time. However, among Arab women the number of hospitalization days remains considerably lower than that of Jewish women, raising concerns that Arab women may be receiving insufficient care. Further study is needed to fully understand the underpinnings of these disparities, although increasing the number of Arabic-language mental health services and providing psycho-education, will help further close the gap.

Ethnic inequalities in community rehabilitation use and psychiatric hospitalizations among people with chronic psychotic disorder

PURPOSE

Community rehabilitation is crucial for the long-term treatment of people with chronic psychotic disorder. Ethnic minorities are less likely to seek care and have accessible treatment. This study examines whether the use of rehabilitation services and the relationship between rehabilitation and number of hospitalization days differ between Arabs and Jews.

METHODS

Data from the Israel National Psychiatric Case Register on 18,684 adults with schizophrenia/schizoaffective disorders hospitalized in 1963-2016 were merged with data from the national Mental Rehabilitation Register. Associations between the use of rehabilitation services and demographic and clinical characteristics were assessed through logistic regression modeling. Associations between ethnicity and duration of rehabilitation (housing or vocational) and annual hospitalization days during Period1: 2001-2009 and Period2: 2010-2016 were analyzed using ANOVA.

RESULTS

Among Jewish patients (N = 2556), 37% and 57% used rehabilitation services during Period1 and Period2, respectively, compared with 18% and 40% among Arab patients (N = 15,145) (p < 0.0001). The use of rehabilitation services was significantly higher among Jews (adjusted OR = 2.26, 95% CI 2.07-2.47). Average duration of housing and vocational rehabilitation services did not differ between Arab and Jewish patients. In both groups, duration of rehabilitation was inversely associated with annual hospitalization days.

CONCLUSIONS

The ethnic disparity in the use of rehabilitation services has narrowed over time, yet remains. Although fewer Arab patients use rehabilitation, Jewish and Arab benefit similarly from the services with regard to reduced hospitalization days. To further close the ethnic gap, greater efforts must be made to expand the availability of culturally appropriate rehabilitation services for the Arab minority.

A 10-year comparison of short versus long-term court-ordered psychiatric hospitalization: a follow-up study

BACKGROUND

The Israel Mental Health Act of 1991 stipulates a process for court-ordered involuntary psychiatric hospitalization. As in many Western countries, this process is initiated when an individual is deemed "not criminally responsible by reason of mental disorder (NCR-MD)" or "incompetent to stand trial (IST)." A patient thus hospitalized may be discharged by the district psychiatric committee (DPC). The decision rendered by the DPC is guided by an amendment to the Mental Health Act that states that the length of the hospitalization should be in accordance with the maximum time of incarceration associated with the alleged crime. Little empirical research has been devoted to the psychiatric, medical, and social outcome of short versus long-term hospitalization under court order.

METHODS

In our study we examined the outcomes of court-ordered criminal commitments over a 10-year period (2005-2015) at the Jerusalem Mental Health Center with a catchment area of 1.5 million. We found 136 cases (between the ages of 18 and 60) of criminal commitments during that period and used the average length of hospitalization, 205 days, as a cutoff point between short and long stays. We compared the outcomes of short and long hospitalizations of discharged patients using a follow-up phone survey (at least 7 years post-discharge) and data extracted from the Israel National Register to include recidivism, patient satisfaction and trust in the system, readmission, and demise.

RESULTS

We found no statistically significant difference between short-term and long-term hospitalizations for reducing instances of re-hospitalization (p = 0.889) and recidivism (p = 0.54), although there was a slight trend toward short-term hospitalization vis-à-vis reduced recidivism. We did not find a statistical difference in mortality or incidents of suicide between the two groups, but the absolute numbers are higher than expected in both of them. Moreover, our survey showed that short-term hospitalization inspired more trust in the legal process (conduct of the DPC), in pharmacological treatment satisfaction, and in understanding the NCR-MD as a step toward avoiding future hospitalization and that it resulted in a higher level of patient satisfaction.

CONCLUSIONS

The results we present show that as far as recidivism and readmission are concerned, there is no evidence to suggest that there is an advantage to long-term hospitalization. Although there may be unmeasured variables not investigated in the present study that might have contributed to the discrepancy between long- and short-term hospitalization, we believe that longer hospitalizations may not serve the intended treatment purpose. Additionally, the high cost of long-term hospitalization and overcrowded wards are obviously major practical drawbacks. The impact of the clinical outcomes should be reflected in medico-legal legislation and in court-ordered hospitalization in particular.

Schizophrenia or schizoaffective disorder? A 50-year assessment of diagnostic stability based on a national case registry

BACKGROUND

Schizoaffective disorder (SAD) remains a controversial diagnosis in terms of necessity and reliability.

OBJECTIVES

We assessed diagnostic patterns of SAD and schizophrenia (SZ) among hospitalized psychiatric patients over a fifty-year period.

METHOD

Data from the Israeli National Psychiatric Registry on 16,341 adults diagnosed with SZ or SAD, hospitalized at least twice in 1963-2017, were analyzed. Stability between most-frequent, first and last diagnosis, and diagnostic-constancy (the same diagnosis in >75 % of a person's hospitalizations) were calculated. Three groups were compared: People with both SAD and SZ diagnoses over the years (SZ-SAD), and people with only one of these diagnoses (SZ-only; SAD-only). The incidence of SAD and SZ before and after DSM-5 publication was compared.

RESULTS

Reliability between last and first diagnosis was 60 % for SAD and 94 % for SZ. Agreement between first and most-frequent diagnosis was 86 % for SAD and 92 % for SZ. Diagnostic shifts differ between persons with SAD and with SZ. Diagnostic-constancy was observed for 50 % of SAD-only patients. In the SZ-SAD group, 9 % had a constant SAD diagnosis. Compared to the other groups, the SZ-SAD group exhibited a higher substance use prevalence, younger age at first-hospitalization, and more hospitalizations/person (p < 0.0001). The incidence of a first-hospitalization SAD diagnosis increased by 2.2 % in the 4-years after vs. prior to DSM-5.

CONCLUSIONS

A SAD diagnosis is less stable than SZ. The incidence of a SAD diagnosis increased after DSM-5, despite stricter diagnostic criteria. The SZ-SAD group exhibited the poorest outcomes. SAD may evolve over time necessitating periodic re-evaluation.

iPSYcare: the development of a linked electronic medical records database to study and optimize psychiatric care in Antwerp

Objective

The study of care trajectories of psychiatric patients across hospitals was previously not possible in Belgium as each hospital stores its data autonomously, and government-related registrations do not contain a unique identifier or are incomplete. A new longitudinal database called iPSYcare (Improved Psychiatric Care and Research) was therefore constructed in 2021, and links the electronic medical records of patients in psychiatric units of eight hospitals in the Antwerp Province, Belgium. The database provides a wide range of information on patients, care trajectories and delivered care in the region. In a first phase, the database will only contain information about adult patients who were admitted to a hospital or treated by an outreach team and who gave explicit consent. In the future, the database may be expanded to other regions and additional data on outpatient care may be added.

Results

IPSYcare is a close collaboration between the University of Antwerp and hospitals in the province of Antwerp. This paper describes the development of the database, how privacy and ethical issues will be handled, and how the governance of the database will be organized.

Community Rehabilitation and Hospitalizations Among People With Chronic Psychotic Disorder: Is There a Differential Association by Co-occurring Substance Use Disorder?

Objective: Co-occurrence of chronic psychotic disorders and substance use disorder (SUD) is clinically challenging and increasingly prevalent. In 2000, legislation was passed in Israel to foster rehabilitation and integration in the community of persons with mental health disorders. In 2010, the need to allocate resources for patients with these co-occurring disorders (COD) was officially recognized. Yet, most rehabilitation services were not specifically designed for COD. This study examines the relationship between duration of community rehabilitation and number of psychiatric hospitalization days among persons with/without COD in Israel. Methods: Data from the National Psychiatric Case Register on 18,684 adults with schizophrenia/schizoaffective disorders hospitalized in 1963-2016, was merged with data from the Israel Mental Rehabilitation Register. Associations and interactions between COD-status (COD/non-COD), time-period (Period₁: 2001-2009, Period₂: 2010-2016), duration of housing or vocational rehabilitation on hospitalization days per year were analyzed using repeated-measures ANOVA. Results: The proportion of non-COD chronic psychotic patients who received rehabilitation services increased from 56% in Period₁ to 63% in Period₂, as it did among COD patients-from 30 to 35%. The proportion of non-COD patients who received longer-duration vocational rehabilitation (≥1 year) was significantly higher (43%) than among COD patients (28%) in both time periods. For housing rehabilitation, these proportions were 79 and 68%, respectively. Persons with COD experienced more hospitalization days annually than non-COD patients. Duration of rehabilitation (less/more than a year) was inversely associated with annual number of hospitalization days (p < 0.0001). This pattern was noted in both COD and non-COD groups and remained significant after controlling for age, sex, COD group, percent of hospitalizations with SUD, and age at first hospitalization. Conclusions: COD patients with prolonged rehabilitation seemingly achieve long-term clinical improvement similar to non-COD patients, despite most rehabilitation settings in Israel not being designed for COD patients. Yet, COD patients receive overall less rehabilitation services and for shorter periods than non-COD patients. Long-term rehabilitation services should be provided to COD patients, who may need more time to commit to treatment. To achieve better long-term mental health improvements, a continued expansion of community-based integrative treatment and rehabilitation services for COD patients is needed in Israel.

Differential Effect of Community Rehabilitation Reform on Hospitalizations of Patients with Chronic Psychotic Disorders With and Without Substance Use Disorder, Israel, 1991-2016

The co-occurrence of schizophrenia and substance use disorder (SUD) is clinically challenging and increasingly prevalent. This study compares trends in hospitalization characteristics of chronic psychotic patients with and without SUD in Israel, before and after introduction of the Community Rehabilitation of Persons with Mental Disability Law in 2000. The National Psychiatric Case Registry provided data on 18,684 adults with schizophrenia/schizoaffective disorders, hospitalized in 1991-2016 (at least once in 2010-2015). Repeated-measures ANOVA was used to measure the effect (and interactions) of group (patients with and without co-occurring disorders (COD)), time-period (Period₁: 1991-2000, Period₂: 2001-2009, Period₃: 2010-2016) and age, on hospitalization measures-average length of stay (LOS), annual number of hospitalizations and hospitalization days. Among non-COD patients hospitalized in all three periods, LOS declined by half from 133.3 days in Period₁ to 63.2 in Period₃, and the annual number of hospitalizations increased slightly from 0.45 to 0.56. Among COD patients, LOS declined moderately from 82.7 days to 58.3 days, while annual hospitalizations increased dramatically from 0.56 to 0.82. The annual average number of hospitalization days/capita declined from 49.7 in Period₁ to 26.3 in Period₃ among non-COD patients, yet remained virtually unchanged among COD patients-39.6 and 37.4 in the two periods, respectively. Since introduction of the law, a significant improvement in hospitalization characteristics of chronic psychotic non-COD patients has been noted, whereas the situation worsened somewhat for COD patients. Community rehabilitation services for COD patients in Israel have yet to develop as a suitable alternative to hospitalization, and additional rehabilitation services are urgently needed.

Psychiatric Hospitalizations of Chronic Psychotic Disorder Patients With and Without Dual Diagnosis, Israel, 1963-2016

Objective: A significant proportion of patients with severe mental illness also experience substance use disorder. For these dual diagnosis (DD) patients, treatment is more complicated and prognosis is worse. Despite the introduction of the Community Rehabilitation of Persons With Mental Health Disability Law in 2000 and ongoing national mental health reforms, psychiatric services in Israel are not meeting the needs of an increasing number of DD patients. This study examines, for the first time in Israel, the prevalence of DD and patterns of psychiatric hospitalizations of chronic psychotic disorder patients with and without substance use disorder. Methods: The National Psychiatric Case Registry provided data on 18,684 persons with schizophrenia/schizoaffective disorders, aged 18-65, with a psychiatric hospitalization during the period 1963-2016 (with at least one hospitalization in 2010-15). Patients were considered as having DD if their substance use disorder was indicated in at least two, or 20%, of hospitalizations. Regression modeling predicted hospitalization measures (number of hospitalizations, total days hospitalized, length of stay). Results were also analyzed by legal status of admission (voluntary or involuntary; psychiatrist-ordered and court-ordered). Results: One-third of patients with chronic psychotic disorder met DD criteria, with a threefold higher rate among males (37.1%) than females (12.8%). Particularly high rates of DD (nearly 50%) were noted among male immigrants from Ethiopia. Compared with non-substance use disorder patients, DD patients had a significantly younger mean age at first hospitalization and shorter average length of stay per hospitalization but a greater number of hospitalizations and total hospital days (p < .0001 for all comparisons). The associations between DD status and hospitalization characteristics remained significant even after accounting for the effects of confounding factors. Hospitalization characteristics were also associated significantly with sex, population group, age, age at first hospitalization, and country of origin. The rate of court-ordered observation or hospitalization was threefold higher in the DD group. Conclusions: These findings, which broadly align with other countries, reflect a scarcity of outpatient services for DD patients with schizophrenia/schizoaffective disorder and substance use disorder. To achieve long-term mental health improvements, an expansion of community-based integrative treatment and rehabilitation services is needed in Israel.

The Camden & Islington Research Database: Using electronic mental health records for research

BACKGROUND

Electronic health records (EHRs) are widely used in mental health services. Case registers using EHRs from secondary mental healthcare have the potential to deliver large-scale projects evaluating mental health outcomes in real-world clinical populations.

METHODS

We describe the Camden and Islington NHS Foundation Trust (C&I) Research Database which uses the Clinical Record Interactive Search (CRIS) tool to extract and de-identify routinely collected clinical information from a large UK provider of secondary mental healthcare, and demonstrate its capabilities to answer a clinical research question regarding time to diagnosis and treatment of bipolar disorder.

RESULTS

The C&I Research Database contains records from 108,168 mental health patients, of which 23,538 were receiving active care. The characteristics of the patient population are compared to those of the catchment area, of London, and of England as a whole. The median time to diagnosis of bipolar disorder was 76 days (interquartile range: 17-391) and median time to treatment was 37 days (interquartile range: 5-194). Compulsory admission under the UK Mental Health Act was associated with shorter intervals to diagnosis and treatment. Prior diagnoses of other psychiatric disorders were associated with longer intervals to diagnosis, though prior diagnoses of schizophrenia and related disorders were associated with decreased time to treatment.

CONCLUSIONS

The CRIS tool, developed by the South London and Maudsley NHS Foundation Trust (SLaM) Biomedical Research Centre (BRC), functioned very well at C&I. It is reassuring that data from different organizations deliver similar results, and that applications developed in one Trust can then be successfully deployed in another. The information can be retrieved in a quicker and more efficient fashion than more traditional methods of health research. The findings support the secondary use of EHRs for large-scale mental health research in naturalistic samples and settings investigated across large, diverse geographical areas.

A comparison of decisions to discharge committed psychiatric patients between treating physicians and district psychiatric committees: an outcome study

BACKGROUND

The Israel Mental Health Act of 1991 stipulates a process for involuntary psychiatric hospitalization (IPH). A patient thus hospitalized may be discharged by either the treating psychiatrist (TP) or the district psychiatric committee (DPC). The decision rendered by the DPC is often at odds with the recommendation of the TP. Although much has been written about the ethical issues of restricting patients' rights and limiting their freedom, far less attention has been devoted to the psychiatric, medical, and social outcome of legal patient discharge against the doctor's recommendation.

METHODS

In our study we examined the outcomes of the decisions made by the DPC using readmission data, an internationally recognized indicator of the quality of hospital care, and compared them to the outcomes of patients discharged by the TP. All IPH discharges resulting from the DPC's determination for the year 2013 (N = 972) were extracted from the Israel national register. We also collected all IPH discharges owing to the TP's decision for 2013 (N = 5788). We defined "failure" as readmission in less than 30 days, involuntary civil readmission in less than 180 days, and involuntary readmission under court order in less than 1 year.

RESULTS

The rehospitalization pattern was compared in the two groups of patients discharged from their psychiatric hospitalization during 2013 (index discharges) and followed up individually for a year. We found a statistically significant difference between the DPC and the TP group for each of the time frames, with the DPC group returning to IPH much more frequently than the TP group. Using cross-sectional comparison with logistic regression adjusted for age, gender, diagnosis and length of hospitalization, we found the probability of a decision failure in the TP group was significantly less with an OR of 0.7 (95% CI .586-.863), representing a 30% adjusted decrease in the probability for failure in the TP group.

CONCLUSIONS

The results we present show that the probability of decision "failure" (readmission) was found to be significantly higher in the DPC group than in the TP group. It is often assumed that IPH patients will fare better at home in their communities than in a protracted hospitalization. This is frequently the rationale for early discharge by the DPC (30.1 days vs. 75.9 DPC and TP groups, respectively). Our results demonstrate that this rationale may well be a faulty generalization.

Double disparities in the health care for people with schizophrenia of an ethnic-national minority

BACKGROUND

Studies have shown health care disparities among persons of minority status, including in countries with universal health care. Yet, a dearth of studies have addressed disparities resulting from the combined effect of two minority status groups: severe mental illness and ethnic-national sector filiation. This study aimed to compare the differential health care of Jewish- and Arab-Israelis with schizophrenia in a country with a universal health insurance.

METHOD

This study builds on a large case-control epidemiological sample (N = 50,499) of Jewish- (92.9%) and Arab-Israelis (7.1%) service users with (n = 16,833) and without schizophrenia (n = 33,666). Health services records were collected in the years 2000-2009. Diabetes and cardiovascular disease (CVD) served as sentinel diseases. We compared annual number of LDL tests and visits to specialists in the entire sample, Hemoglobin-A1C test among people diagnosed with diabetes, and cardiac surgical interventions for those diagnosed with CVD.

RESULTS

Service users with schizophrenia were less likely to meet identical indexes of care as their study counterparts: 95% of cholesterol tests (p < .001), and 92% visits to specialists (p < .001). These differences were greater among Arab- compared to Jewish-Israelis. Annual frequency of Hemoglobin-A1C test among people diagnosed with diabetes was lower (94%) in people with schizophrenia (p < 0.01), but no ethnic-national differences were identified. Among service users with CVD less surgical interventions were done in people with schizophrenia (70%) compared to their counterparts, with no ethnic-national disparities.

CONCLUSIONS

In Israel, service users with schizophrenia fail to receive equitable levels of medical and cardiac surgical care for CVD and regular laboratory tests for diabetes. Although disparities in some health indicators were enhanced among Arab-Israelis, schizophrenia was a greater source of disparities than ethnic-national filiation.

Health Care and Mortality among Persons with Severe Mental Illness

OBJECTIVE

Reports show disparities in the health care of persons with severe mental illness (SMI), including in countries with universal health insurance. However, the moderating effect on disparities of specific mental health legislation is yet to be studied. The study aimed to investigate equality of health care for people with SMI in a country with a national health insurance and a comprehensive rehabilitation law for persons with mental disabilities.

METHOD

A case-control epidemiological study compared health services (laboratory tests, visits to specialists, and medications) provided to users with and without a history of schizophrenia and bipolar disorder ( N = 52,131) and with regard to a subgroup of users with diabetes ( n = 16,280). In addition, we examined the mortality rates of the study population.

RESULTS

While service users with schizophrenia were somewhat less likely to meet the same indexes of care as controls, those with bipolar disorder did not differ from their counterparts. Yet, mortality risk among service users with schizophrenia and bipolar disorder was 2.4 and 1.7 times higher, respectively. Rates of services to persons with SMI and comorbid diabetes did not differ from their counterparts.

CONCLUSIONS

In Israel, a country with a national health insurance and a rehabilitation law for persons with mental disabilities, service users with bipolar disorder receive equitable levels of general health care. For users with schizophrenia, the disparities exist in some of the health care measures but to a smaller extent than in other countries with universal health insurance. In contrast, mortality rates are elevated in persons with SMI.

Health care disparities among persons with comorbid schizophrenia and cardiovascular disease: a case-control epidemiological study

AIMS

Studies showed health care disparities among persons with comorbid schizophrenia and cardiovascular disease (CVD), including in countries with universal health care. However, the potential positive effect of specific mental health legislation has not been reported. This study aimed to investigate the health care of persons with comorbid schizophrenia and CVD in a country with both a national health insurance and a comprehensive rehabilitation law for persons with mental disabilities.

METHOD

This study builds on a large case-control epidemiological sample (N = 52 189) of service users. Within the sample we identified a sub-group of persons with CVD diagnoses (n = 8208) and compared service users with and without schizophrenia on drug utilisation, laboratory tests, visits to specialists and surgical interventions.

RESULTS

Service users with schizophrenia were less likely to meet similar indexes of care as their counterparts: 91% cholesterol tests (p < 0.001), 60% stress tests (p < 0.001), 93% visits to specialists (p = 0.001), 93% drug utilisation (p < 0.001) and 55% CVD surgical interventions (odds ratio 0.55, 95% confidence intervals 0.49-0.61).

CONCLUSIONS

In Israel, a country with a national health insurance and a rehabilitation law specific for persons with mental disabilities, service users with schizophrenia still fail to receive equitable levels of health care for CVD. However, the disparities appear to be smaller than in other countries with universal health insurance.

'Big data' in mental health research: current status and emerging possibilities

PURPOSE

'Big data' are accumulating in a multitude of domains and offer novel opportunities for research. The role of these resources in mental health investigations remains relatively unexplored, although a number of datasets are in use and supporting a range of projects. We sought to review big data resources and their use in mental health research to characterise applications to date and consider directions for innovation in future.

METHODS

A narrative review.

RESULTS

Clear disparities were evident in geographic regions covered and in the disorders and interventions receiving most attention.

DISCUSSION

We discuss the strengths and weaknesses of the use of different types of data and the challenges of big data in general. Current research output from big data is still predominantly determined by the information and resources available and there is a need to reverse the situation so that big data platforms are more driven by the needs of clinical services and service users.

Trends in dual diagnosis of severe mental illness and substance use disorders, 1996-2010, Israel

OBJECTIVES

(1) To examine the trends in the incidence of dual diagnosis (DD) of severe mental illness and substance-related disorders among inpatients in Israel, and (2) the demographic and clinical correlates of DD patients.

METHOD

Using data from the National Psychiatric Case Register, we identified 56,774 inpatients aged 15-64 whose first psychiatric hospitalization occurred between 1996 and 2010. We compared the characteristics of inpatients having DD with drugs, alcohol or drug/alcohol abuse with those with mental disorder only.

RESULTS

Over the period, DD with drugs decreased from 8.2% in 1996 to 6% in 2010; DD with alcohol increased from 3% to 4% and DD with drugs/alcohol from 2% to 4%. DD with drugs was highest, whereas DD with alcohol was lowest for the youngest age- group in 1996 but increased to the same as other age-groups in 2006-2010. Male gender, a previous suicide attempt, compulsory hospitalizations and marital status were positive predictors for all DD. Immigrant status was a positive predictor of DD with alcohol, but the opposite for DD with drugs; being Jewish and psychotic diagnosis was a positive predictor of DD with drugs, but negative for DD with alcohol.

CONCLUSIONS

Over the study period, DD with drugs has decreased among young patients, although it is still higher than among older groups. However, DD with alcohol or drugs/alcohol has increased in the younger group. The clinical-demographic profile of DD patients was similar to that from the relevant literature, except for immigrant status that was negatively associated with DD with drugs.

Hospitalization of patients with schizophrenic and affective disorders in Israel in the aftermath of the structural and rehabilitation reforms

Background

In the last decade (2001–2010) the Ministry of Health implemented two major inter-related reforms: a ’structural reform’ to reduce the number of psychiatric beds and the ’Rehabilitation of the Mentally Disabled in the Community Law’, which allocated funds for a variety of residential and vocational programs in the community for these patients. The objective of the present paper was to examine the impact of the two reforms on the hospitalization of schizophrenic and affective disorder patients by tracking the patterns of their inpatient care during the last decade.

Methods

Data on all psychiatric admissions during the period 1990–2011 were extracted from the Israel Psychiatric Case Register to examine changes in the rate of admissions, length of hospitalizations, total inpatient days and tenure in the community. The analysis was done separately for first-in-life vs. all admissions and for patients with schizophrenia vs. patients with affective disorders.

Results

From 2006 onward, with no decrease in the number the beds, the number of inpatient days for first-in-life patients with schizophrenia decreased by 29%, their admission rates dropped by 22%, the proportion of short [< 30 days] first in life episodes went up, while the percentage of those whose first in life episode lasted more than one year went down from 2.5% to 0.5%. The parallel results for patients with affective disorders were much less significant.

Conclusions

An increasing percentage of patients with schizophrenia are not admitted to psychiatric wards at all and an increasing percentage of those who are admitted are treated during a shorter episode. The change is probably due to the rehabilitation reform which enabled the structural reform (the reduction in beds) to be implemented effectively.

Prenatal stress and affective disorders in a population birth cohort

OBJECTIVES

Pregnant women exposed to an acute traumatic event are thought to produce offspring with an increased incidence of affective disorders. It is not known whether there are specific times in pregnancy which confer increased vulnerability, or if psychosocial stress alone can increase the incidence of affective disorders in offspring. We examined the relationship of the timing of an acute psychosocial threat during pregnancy to the incidence of affective disorders in offspring using data from a large birth cohort.

METHODS

Using data on 90079 offspring born in Jerusalem in 1964-1976 and linked to Israel's psychiatric registry, we constructed proportional hazards models to evaluate the link between gestational age during the Arab-Israeli war of June 1967 and incidence of mood disorders.

RESULTS

Those in their first trimester of fetal development during the war were more likely to be admitted to hospitals for any mood disorders [relative risk (RR) = 3.01, 95% confidence interval (CI): 1.68-5.39, p = 0.0002]; for bipolar disorder the risk was doubled (RR = 2.44, 95% CI: 0.996-5.99, p = 0.054) and for all 'other' mood disorders the risk was tripled (RR = 3.61, 95% CI: 1.68-7.80, p = 0.001). Mood disorders were also increased in offspring whose mothers had been in the third month of pregnancy in June of 1967 (RR = 5.54, 95% CI: 2.73-11.24, p < 0.0001).

CONCLUSIONS

A time-limited exposure to a severe threat during early gestation may be associated with an increased incidence of affective disorders in offspring. The third month of fetal development was a moment of special vulnerability.

Cancer in parents of persons with schizophrenia: is there a genetic protection?

A reduced risk for cancer has been noted among persons with schizophrenia as well as their first degree relatives. One explanation for these findings suggests that genes associated with schizophrenia confer reduced cancer susceptibility. Given the well documented genetic factor in schizophrenia it could thus be expected that cancer incidence rates should be lower in persons with schizophrenia with a known family history of schizophrenia compared to persons with sporadic schizophrenia, as well as their first degree relatives. This study investigated the risk for cancer among the biological parents of persons with schizophrenia accounting for the familial aggregation. Linkage was conducted between national population, psychiatric and cancer databases. Standardized incidence rates for all cancer sites were calculated by comparing the parents' rates with those of the general population. In addition, the association between familial aggregation of schizophrenia and risk for cancer was calculated among the parents. A reduced cancer risk was found among the parents compared to the general population (SIR 0.8, 95% CI 0.8-0.9). However, no evidence of decreased risk was associated with familial schizophrenia. Thus, no association between familial aggregation and cancer incidents was found with regard to most cancer sites. Moreover, a small, but not statistically significant increased risk of colon cancer was associated with familial aggregation scores among the parents (OR 1.2, 95% CI 1.0-1.5). These findings undermine the support to the genetic explanation for the reduced risk for cancer in schizophrenia among patients and their biological parents.

Disparities in the geography of serious mental illness in Israel

OBJECTIVE

The aim of this research is to test and apply a model of the disparities and variations in serious mental illness (SMI) to estimating prevalence in local areas throughout Israel.

METHODS

This study employs a secondary analysis of data from the 2003/2004 Israel National Health Survey of 4859 adults aged 21 and over from the household population of legal residents and citizens. It uses small area estimation methods (SAE), specifically to: (i) estimate and test a multivariate logistic model of disparities in the risk of serious mental illness; (ii) use the foregoing model for computing estimates, using census data, for local areas; (iii) validate these estimates against the rate of psychiatric hospitalizations.

RESULTS

The model uses standard demographic and socioeconomic variables to successfully predict 92.5% of respondents' statuses as SMI, with a sensitivity of 26.9%, specificity of 95.9%, and an AUC index of .797. The resulting estimates of the percentage of adults with an SMI in the 16 subdistricts ranged between 3.7% and 7.7%, with a national mean of 5.0%. The estimates have a partial correlation of .63 with rates of psychiatric hospitalization in Jewish localities, but elevated rates have not been validated in Arab localities.

CONCLUSION

The use of small area estimation methods demonstrated the capacity for deriving local prevalence rates of serious mental illness, ones that can be validated against psychiatric hospitalization for the majority population group in Israel.

Catatonic schizophrenia: a cohort prospective study

BACKGROUND

In the 20th century, catatonia was usually deemed a subtype of schizophrenia. Recently, the nature and classification of catatonia are being reconsidered. This study is the first to describe catatonia using prospectively collected data and to examine how catatonic schizophrenia differs from, or resembles, other types of schizophrenia.

METHODS

Data were analyzed in a cohort of 90,079 offspring followed from birth till ages 29-41 years. Proportional hazards models were used, calculating time to first psychiatric hospital admission, to compare risk factors for catatonic schizophrenia vs "other schizophrenia."

RESULTS

Of 568 cases of schizophrenia, 43 (7.6%) had catatonic schizophrenia. The sexes were equally at risk for catatonic schizophrenia in contrast to other schizophrenia, for which the incidence was higher in males (1.70, 1.42-2.03, P < .0001). Advancing paternal age had no influence on the risk of catatonic schizophrenia in contrast to other schizophrenia, in which the risk to offspring of fathers age 35+ was 1.27 (1.03-1.57, P = .03) compared with those of younger fathers. Those with catatonic schizophrenia were somewhat more likely to have older mothers (aged 35+) (relative risk = 2.14, 0.85-5.54) while maternal age was not related to other schizophrenia. Both were equally affected by parental history of schizophrenia. Patients with catatonia were significantly more likely to attempt suicide (P = .006).

CONCLUSION

Patients with catatonic schizophrenia show a somewhat different profile of risk factors from those with other types of schizophrenia in this cohort and are more likely to attempt suicide. This lends some support to the hypothesis that catatonic schizophrenia may have a distinct etiology.

Childhood exposure to ionizing radiation to the head and risk of schizophrenia

While the association between exposure to ionizing radiation and cancer is well established, its association with schizophrenia is unclear. The aim of our study was to assess risk of schizophrenia after childhood exposure to ionizing radiation to the head (mean dose: 1.5 Gy). The study population included an exposed group of 10,834 individuals irradiated during childhood for treatment of tinea capitis in the 1950s and two unexposed comparison groups of 5392 siblings and 10,834 subjects derived from the National Population Registry individually matched to the exposed group by age, sex (when possible), country of birth, and year of immigration to Israel. These groups were followed for a median 46 years for diagnosis of schizophrenia updated to December 2002. The Cox proportional hazards model stratified by matched sets was used to compare the risk of schizophrenia between the groups. Based on 1,217,531 person-years of follow-up, 451 cases were identified. No statistically significant association was found between radiation exposure and schizophrenia for the total group (hazard ratio per 1 Gy to the brain: 1.05, 95% confidence interval: 0.93-1.18) or within subgroups of sex, dose categories or latent period. When comparing a subgroup of subjects irradiated under 5 years of age with the matched unexposed group, the estimated hazard ratio reached 1.18 (95% confidence interval: 0.96-1.44; P = 0.1). The results of our analysis do not support an association between exposure to ionizing radiation and risk of schizophrenia. More research on possible effects of early exposure to ionizing radiation on schizophrenia specifically and brain tissue in general is needed.

Age, sex and first treatment of schizophrenia in a population cohort

OBJECTIVE

Schizophrenia affects men more than women, but this may not be true at all ages. This study examines the incidence of first hospitalization for treatment of schizophrenia in each sex over different ages.

METHODS

We compared the incidence of first admission for treatment in a cohort of 46,388 males and 43,680 females followed from birth until ages 29-41, using life tables and proportional hazards methods.

RESULTS

Life table estimates of cumulative incidence by age 40 were 1.44% in males and 0.86% in females. For over all ages the relative risk (RR) in males was 1.6 (95% confidence limits=1.4-1.8) compared with females. Before age 17 there was no significant difference between the sexes (RR=0.86, 0.56-1.3). Excess risk in males was observed only from age 17 (RR=1.7, 1.4-1.9). There was no evidence of the incidence in females catching up with that in males, during the 30s.

CONCLUSION

In this population, there was a significant change, over age, in the relative incidence of first hospitalization for schizophrenia between the sexes; the excess incidence in males first developed at age 17.

Time-to-pregnancy and risk of schizophrenia

Schizophrenia has been linked to advanced paternal age, but the explanation is unknown. We questioned whether the incidence of schizophrenia would be related to male reproductive capacity, as reflected in the time taken to conceive. We measured the incidence of schizophrenia in relation to time to conception in a sub-group of 12,269 in the Jerusalem cohort whose mothers, interviewed post-partum, reported that the pregnancy had been intended. Compared with those conceived in less than 3 months, the unadjusted relative risks (RR) of schizophrenia associated with conception-waits of 3-5, 6-11 and 12+ months were 1.10 (95% confidence interval, 0.62-1.94), 1.41 (0.79-2.52) and 1.88 (1.05-3.37) with p for trend=0.035. This trend was attenuated somewhat by adjusting for paternal age, and was observed more strongly in offspring of fathers aged 30+ (p=.010). These findings suggest that factors associated with fecundability, either male or female, may contribute to the risk of schizophrenia.

Revolving-door patients in a public psychiatric hospital in Israel: cross sectional study

AIM. To study social, demographic, clinical, and forensic profiles of frequently re-hospitalized (revolving-door) psychiatric patients. METHODS. The study included all patients (n=183) who were admitted to our hospital 3 or more times during a 2-year period from 1999 through 2000. We compared these patients to 2 control groups of patients who were admitted to our hospital in the same period. For comparison of forensic data, we compared them with all non revolving-door patients (n=1056) registered in the computerized hospital database and for comparison of medical and clinical data we compared them with a random sample of non revolving-door patients (n=98). The sample was sufficiently large to yield high statistical power (above 98%). We collected data on the legal status of the hospitalizations (voluntary or involuntary) and social, demographic, clinical, and forensic information from the forensic and medical records of revolving-door and non revolving-door patients. RESULTS. In the period 1999-2000, 183 revolving-door patients accounted for 771 (37.8%, 4.2 admissions per patient) and 1056 non revolving-door patients accounted for 1264 (62.5%, 1.2 admissions per patient) of the 2035 admissions to our hospital. Involuntary hospitalizations accounted for 23.9% of revolving-door and 76.0% of non revolving-door admissions. Revolving-door patients had significantly shorter mean interval between hospitalizations, showed less violence, and were usually discharged contrary to medical advice. We found no differences in sex, marital status, age, ethnicity, diagnoses, illegal drug and alcohol use, or previous suicide-attempts between the groups. CONCLUSIONS. Revolving-door patients are not necessarily hospitalized for longer time periods and do not have more involuntarily admissions. The main difference between revolving-door and non revolving-door patients is greater self-management of the hospitalization process by shortening the time between voluntary re-admission and discharge against medical advice.

The South London and Maudsley NHS Foundation Trust Biomedical Research Centre (SLAM BRC) case register: development and descriptive data

BACKGROUND

Case registers have been used extensively in mental health research. Recent developments in electronic medical records, and in computer software to search and analyse these in anonymised format, have the potential to revolutionise this research tool.

METHODS

We describe the development of the South London and Maudsley NHS Foundation Trust (SLAM) Biomedical Research Centre (BRC) Case Register Interactive Search tool (CRIS) which allows research-accessible datasets to be derived from SLAM, the largest provider of secondary mental healthcare in Europe. All clinical data, including free text, are available for analysis in the form of anonymised datasets. Development involved both the building of the system and setting in place the necessary security (with both functional and procedural elements).

RESULTS

Descriptive data are presented for the Register database as of October 2008. The database at that point included 122,440 cases, 35,396 of whom were receiving active case management under the Care Programme Approach. In terms of gender and ethnicity, the database was reasonably representative of the source population. The most common assigned primary diagnoses were within the ICD mood disorders (n = 12,756) category followed by schizophrenia and related disorders (8158), substance misuse (7749), neuroses (7105) and organic disorders (6414).

CONCLUSION

The SLAM BRC Case Register represents a 'new generation' of this research design, built on a long-running system of fully electronic clinical records and allowing in-depth secondary analysis of both numerical, string and free text data, whilst preserving anonymity through technical and procedural safeguards.

The risk for cancer among patients with schizoaffective disorders

BACKGROUND

Several epidemiological studies explored the risk for cancer among both persons with schizophrenia and their first-degree relatives, and among patients with bipolar disorder. No studies have yet explored the risk among persons with schizoaffective disorders.

METHOD

Linkage analysis was conducted based on the psychiatric and the cancer national databases. Standardized incidence ratios (SIR) for aggregated cancer sites were calculated by comparing the incidence rates among patients in the psychiatric case register with schizoaffective disorders with the incidence rates in the Jewish-Israeli general population.

RESULTS

No significant alteration in cancer risk was found for both genders: males, SIR=1.11, 95% CI (0.48-1.73) and females, SIR=1.38, 95% CI (0.96-1.80).

LIMITATIONS

Our sample was derived from patients with a history of psychiatric hospitalization. Putative factors such as diet, smoking and medications were not investigated.

CONCLUSIONS

Our study showed no significant increase in the risk for cancer in schizoaffective disorders. Those results appear to be positioned between the schizophrenia findings that show a lower risk for cancer and the bipolar disorder findings that show an increased risk.

Clinical case management of revolving door patients - a semi-randomized study

OBJECTIVE

To assess the effectiveness of psychiatric clinical case management.

METHOD

Subjects with at least three admissions in the previous 2 years were randomized into a clinical case management group (CMG; n = 122) and a standard care group (SCG; n = 95). Individuals who refused or were not located were included in a third, non-randomized no-treatment group (NTG; n = 153). Parameters assessed included utilization of in-patient services and psychosocial functioning.

RESULTS

We found no difference between the CMG and the SCG in psychosocial functioning as evaluated by interviewers, and no difference between the three groups in hospitalization. In subjects' self-ratings, the CMG showed slight improvement in psychosocial functioning.

CONCLUSION

Clinical case management did not prove itself superior to standard care in a revolving door population.

Re-hospitalization of first-in-life admitted schizophrenic patients before and after rehabilitation legislation: a comparison of two national cohorts

BACKGROUND

In line with the worldwide trend of deinstitutionalization and development of community facilities, a rehabilitation legislation was passed in Israel in 2000. Its aim was to establish an infrastructure for the chronic mentally ill. The objective of the present study was to evaluate the impact of this legislation on the re-hospitalization of schizophrenic patients.

METHOD

Re-hospitalization rates within 3 years of discharge were compared for two cohorts of first-in-life hospitalized schizophrenics, those discharged in 1990-1991 and those discharged in 2000-2001, after the passing of the law. Possible confounding variables were controlled for by logistic regression analyses. The same analysis was done for patients with affective disorders who are not generally beneficiaries of this legislation.

RESULTS

In 2000-2001, the re-hospitalization rate was significantly lower than in 1990-1991 for schizophrenic patients with an in-patient stay longer than 6 months (chronic patients) but not for short-stay schizophrenics or for affective patients.

CONCLUSION

The study suggests that the expanding of the rehabilitation facilities in the community by legislation leads to increase in the survival in the community of schizophrenic patients.

Cancer risk among parents and siblings of patients with schizophrenia

BACKGROUND

A reduced risk of cancer has been noted among people with schizophrenia. Given that genetic causes have been proposed as an explanation of this finding, one would expect that the risk of cancer among first-degree relatives would be equally reduced.

AIMS

To investigate the risk of cancer among the biological parents and full siblings of people receiving in-patient care for schizophrenia.

METHOD

Linkage analysis was conducted between national population, psychiatric and cancer databases. Standardised incidence ratios for all cancer sites were calculated by comparing the incident rates among first-degree relatives with national incidence rates.

RESULTS

A reduced cancer risk was found across all groups examined. Among parents, whose numbers were adequately large, the findings reached statistical significance. For index cases and siblings--a markedly younger population--only a trend was elicited.

CONCLUSIONS

The genetic hypothesis--namely, the presence of a gene with the dual effect of reducing the cancer risk and disrupting neurodevelopment--is a plausible explanation for these findings.

Maternal household crowding during pregnancy and the offspring's risk of schizophrenia

BACKGROUND

Animal models of schizophrenia suggest a link between maternal crowding during pregnancy and increased risk of the offspring to develop physiological, developmental, and behavioral abnormalities that are comparable to those observed in schizophrenia. We tested the hypothesis that a similar link is present in humans.

METHOD

We investigated whether prenatal exposure to household crowding was associated with the risk of schizophrenia in a sub-cohort of the Jerusalem Perinatal Study (JPS) consisting 11,015 individuals born between 1964 and 1976. During these years mothers participated in face to face interviews in early pregnancy. The prenatal and birth data, including the number of rooms and individuals living in the mothers' household, was cross-linked with the Israel Psychiatric Registry by ministry personnel.

RESULTS

104 schizophrenia cases were identified in the cohort. Offspring who, while in utero, their mother resided in a household with five or more individuals had RR of 1.47 (95% CI: 0.99-2.16, p=0.05) to develop schizophrenia, compared to those whose mother resided with four or fewer individuals. However, when adjusted for paternal age, the RR was reduced to 1.18 (95% CI: 0.76-1.84, p=0.46). The number of rooms in the household and the household crowding during pregnancy did not significantly impact the offspring's risk to develop schizophrenia.

CONCLUSION

The link between maternal household crowding during pregnancy and the offspring's risk of schizophrenia was explained primarily by the impact of paternal age. The authors discuss the results in view of findings from animal and human studies.

The SES setting of psychiatric hospitalization in Israel

OBJECTIVES

This study examined the relationship between the SES level of localities and psychiatric hospitalization measures to determine the SES place in the planning of mental health services.

METHODS

The unit of analysis in this study was the city. Data collected from Central Bureau of Statistics (CBS), the National Insurance Institute and the national psychiatric hospitalization case register were used to investigate the association of SES for each city, the number of disability pension recipients for each city and the hospitalization measures: admission rates, length of inpatient episode and the length of tenure in the community.

RESULTS

The socioeconomic level of cities correlated significantly with the number of disability pension recipients in each city and the hospitalization measures: admission rates, length of inpatient episode and the length of tenure in the community. However, the relationship between the SES and both the psychiatric admission rates and the psychiatric disability rates differed between the lower and the higher parts of the SES scale: Both measures went up as the SES went up from level 1 to level 3 and went down as the SES level went up from level 4 to level 8.

CONCLUSIONS

The demand for psychiatric hospitalization was higher in the poorer communities. Reaching equity in distributing community public mental health resources seems to be not only more appropriate but also more cost-effective.

Impact of a rehabilitation legislation on the survival in the community of long-term patients discharged from psychiatric hospitals in Israel

BACKGROUND

The aim of the present study was to examine the impact of the Rehabilitation Law 2000 in Israel (which provides a basket of rehabilitation services for every mentally disabled patient) on the survival in the community of a population of long-stay psychiatric patients released from psychiatric hospitals.

METHODS

A naturalistic follow-up study was performed on long-stay patients discharged ("key discharge") from two Israel psychiatric hospitals closed before (in 1997) and after (in 2000) introduction of the Rehabilitation Law 2000. The data source was the National Psychiatric Hospitalization Registry.

RESULTS

The study population consisted of 611 patients. The percentage of patients who, at closure of hospital, were discharged directly into the community was eightfold higher following the Rehabilitation Law 2000 than before. There was also a trend for a lower readmission rate for those patients who were discharged into the community in the post-law period, both for those whose key discharge was directly to the community and for those who were later discharged after being transferred to another hospital at key discharge. Concerning the mean duration of inpatient stay, there was no difference between the two cohorts, whether hospitalizations followed transfer to another hospital from key discharge or rehospitalization from the community. Interestingly, the Rehabilitation Law did not have a significant effect on patients' mortality after key discharge.

CONCLUSION

The Rehabilitation Law 2000 has a beneficial effect on the opportunities of long-stay psychiatric patients to resettle in the community without increasing risk of death.

Cancer in schizophrenia: is the risk higher or lower?

Studies exploring the relationship between schizophrenia and cancer have shown conflicting results. Our study explores this association in three Jewish-Israeli population groups defined by their continent/place of birth (Israel, Europe-America, and Africa-Asia). The identification of the patients was made through the linkage of the nationwide psychiatric and cancer registries. The incidence of cancer in patients diagnosed with schizophrenia was compared with the incidence in the general population. The results showed that the cancer standardized incidence ratios (SIRs) for all sites were significantly lower among men and women with schizophrenia, 0.86 [95% confidence interval (CI) 0.80-0.93] and 0.91 (95% CI 0.85-0.97), respectively. This reduced overall risk was clearest for those born in Europe-America, both men (SIR 0.85, 95% CI 0.74-0.97) and women (SIR 0.86, 95% CI 0.77-0.94). Among women diagnosed with schizophrenia, the SIR was statistically higher for cancer in the breast among those born in Asia-Africa (1.37, 95% CI 1.12-1.63) and in the corpus uteri among the Israel-born (2.75, 95% CI 1.69-3.81) than among their counterparts in the general population. Lung cancer was significantly higher in men born in Asia-Africa diagnosed with schizophrenia than in the respective comparison population group (1.58, 95% CI 1.13-2.2). Our findings, and those of the literature, justify conducting a multinational study that includes identification of cancer-related risk factors among patients with schizophrenia and their families, and information on the use of psychotropic medications. This effort may clarify an epidemiological puzzle that remains outstanding.

A program of supported education for adult Israeli students with schizophrenia

This report describes a supported education program (SEP), a novel community-based program of rehabilitation for psychiatric patients, started in Israel in 1999. Objectives, target population and activities are described. In addition, initial findings of two program-related studies are presented. One study explored the relationship of psychological distress with students' coping strategies and perceived social support. The second study is a survey of mental health literacy and attitudes of heads of schools for adult education where the SEP was implemented. Studies' findings suggested a "case for action" with the following objectives: to develop interventions to prevent distress among SEP users, and to enhance mental health knowledge and foster positive attitudes among school personnel aimed at decreasing dropout rates and encourage the utilization of the opportunities provided by SEP.

Patterrns of Acute Psychiatric Hospitalization in Massachusetts

This study identifies long-term patterns of patient utilization in acute hospitals in Massachusetts based on the 47,787 psychiatric patients. Cluster analyses are used to identify six patterns of hospitalization based on the number and length of episodes, variety of institutions, length of stay, and time between stays. The study demonstrates that while the 74% of one-time patients with short stays use only a fifth (18.0%) of the bed days, the highest users were not the long-term users, but instead the 22.9% occasional extended-stay patients who use 70.0% of the total bed days. The study also finds that extending the length of the initial stay has little impact on limiting subsequent hospitalization.