Patterns of psychiatric hospitalizations in schizophrenic psychoses within the Northern Finland 1966 Birth Cohort

We report patterns of hospitalization in schizophrenic psychoses by age 34 in a longitudinal population-based cohort. We test the predictive ability of various demographic and illness-related variables on patterns of hospitalization, with a special focus on the length of the first psychiatric hospitalization. All living subjects of the Northern Finland 1966 Birth Cohort with DSM-III-R schizophrenia (n=88) and other schizophrenia spectrum cases (n=27) by the year 1997 in the Finnish Hospital Discharge Register were followed for an average of 10.5 years. Measures of psychiatric hospitalization included time to re-hospitalization (as continuous and as re-hospitalization within 2 years) and the number of hospital episodes. Length of the first hospitalization, other illness-related and various socio-demographic predictors were used to predict hospitalization patterns. After adjusting for gender, age at first admission and number of hospital days a short (1–14 days) first hospitalization (reference >30 days; adjusted odds ratio 6.39; 95% CI 2.00–20.41) and familial risk of psychosis (OR 3.36; 1.09–10.39) predicted re-hospitalization within 2 years. A short first hospitalization also predicted frequent psychiatric admissions defined as the first three admissions within 3 years (OR 13.77; 3.92–48.36). A short first hospitalization was linked to increased risk of re-hospitalizations. Although short hospitalization is recommended by several guidelines, there may be a group of patients with schizophrenic psychoses in which too short a hospitalization may lead to inadequate treatment response.     

Outcome studies on schizophrenic psychoses in Helsinki

This paper deals with the prognosis of schizophrenic psychoses in Helsinki in 1950-1955, 1960-1965, 1965-1970, 1970-1975, and 1975-1980. The first 4 cohorts each include a sample of 100 patients taken in 1950, 1960, 1965, and 1970. The patients were admitted for the first time to a psychiatric hospital because of schizophrenic and paranoid psychoses. The 1975 material includes all (n = 94) first admissions for schizophrenia, fulfilling the DSM-III criteria of schizophrenia or schizophreniform psychosis.     

Characteristics of subjects with schizophrenia spectrum disorder with and without antipsychotic medication – A 10-year follow-up of the Northern Finland 1966 Birth Cohort study

ObjectiveTo estimate the prevalence of non-medicated subjects having schizophrenia spectrum disorder and to study how they differ from medicated subjects in terms of sociodemographic and illness-related variables. We also aim to find the predictors for successful antipsychotic withdrawal.MethodsData of 70 subjects with schizophrenic psychoses (mean duration of illness 10.4 years) from the Northern Finland 1966 Birth Cohort were gathered by interview at the age of 34 and from hospital records. The stability of remission was assessed by comparing hospitalization rates between non-medicated and medicated subjects over an 8.7-year additional follow-up period.ResultsTwenty-four (34%) subjects were currently not receiving medication. They were more often males, less often on a disability pension, more often in remission, and had better clinical outcomes. Relapses during the follow-up were equally frequent between non-medicated and medicated subjects (47% vs. 56%). Not having been hospitalised during previous 5 years before the interview predicted long-term successful antipsychotic withdrawal without relapse.ConclusionsDespite a lack of precise predictors, there might be subgroup of schizophrenia spectrum subjects who do not need permanent antipsychotic medication, and a fewer previous psychiatric treatments may indicate such a subgroup.     

Socio-demographic and clinical predictors of occupational status in schizophrenic psychoses--follow-up within the Northern Finland 1966 Birth Cohort

We studied occupational status of persons with schizophrenic psychoses by age 34 in a longitudinal population-based cohort and predicted which demographic and illness-related factors could support the patients to maintain their occupational capacity. Subjects of the Northern Finland 1966 Birth Cohort with the diagnosis of DSM-III-R schizophrenic psychoses (n=113) by the year 1997 were followed until the end of year 2000. Various illness and socio-demographic factors at the time of onset of illness were used as predictors. At the end of the follow-up time 50 (44%) of patients were not pensioned and 22 (20%) were also working at least half of the time during year 2000. After adjusting for gender, being unemployed at onset, educational level and proportion of time spent in psychiatric hospitals, those who were married or cohabiting at the time of onset of illness were less often on pension than those who were single (OR 6.51; 95% CI 1.83-23.12). Thus, nearly half of the patients with schizophrenic psychoses were not pensioned after an average 10 years follow-up. Based on our findings, those who were single at time of their onset of illness probably need most support to retain their contacts to work life.     

Admissions to a South African general hospital psychiatric unit

In a study of adminssions to the psychiatric unit of a general hospital from December 1, 1977, to November 30, 1978, data obtained from all 478 admitted patients were analyzed; the most prevalent condition was found to be the neuroses, followed by organic brain syndromes. Most patients admitted fell into the 19–39 age group, with a preponderance of male admissions between the ages of 6–39, but more admissions of females above 40. A significant difference in the occurrence of conditions between the sexes was noted: the most prevalent condition for males between the ages of 6–39 years was schizophrenia, while more females suffered from the neuroses. Males 40 years and older presented predominantly with organic brain syndromes; females in that age group presented predominantly with affective psychoses. The average length of stay for both sexes was eight days. Schizophrenia required the longest hospital stay, an average of 11 days. Seventy-eight patients (16.3%) were admitted more than once during the period of study. Conditions commonly associated with readmission were affective psychoses and schizophrenia. The role of the general hospital psychiatric unit and its advantages and shortcomings are discussed.     

Increase in first admissions for schizophrenia and other major psychoses in Italy

Despite reports of falling first-admission rates for schizophrenia in some Western countries, methodological problems and bias preclude a definite conclusion about a genuine fall in the incidence of schizophrenia. This study set out to test the hypothesis that first admissions for schizophrenia in Italy have fallen in recent years. All admissions rated as 'first contact' in Italy from 1984 to 1994 for severe mental illnesses to general hospital psychiatric services, as reported in the Italian National Institute for Statistics Health-Care Yearbooks, were considered. Data were analyzed as rates per 100000 in the general population, and changes over time in incidence of schizophrenia, paranoia, affective psychoses and drug-induced psychoses (diagnosed according to ICD 9) were recorded. Changes in rates over time, with rates as the dependent variable and years as the independent variable, were the main outcome measure. First-admission rates for schizophrenia and paranoia increased progressively from 1984 to 1994, as did those for affective psychoses, mania and, to a lesser extent, major depression. In the same period, all admissions (both total and rated as 'first-contact') for mental disorders increased. Although linear regression tests for admission rates in most, but not all, cases indicate a significant ascending linear trend, quadratic model results show a significantly better fit than does the simple linear regression model for the majority of data. The change described by the quadratic model suggests an increase in admission rates more marked in the second half than in the first half of the period of the study. First-admission rates for schizophrenia and, to a lesser extent, paranoia seemed to increase concurrent to a decrease in first-admission rates for 'other' non-organic psychoses. Contrary to reports from other Western countries, hospital incidence in Italy for schizophrenia is on the increase, as is that for other severe psychoses. This increase is likely to be a reflection of changes in mental health-care organisation, in treatment and diagnostic patterns, and in cultural attitudes towards mental illness. Radical changes in the true incidence of psychoses, in particular of mood disorders, as described elsewhere, cannot be ruled out as contributing factors. Data bias and limitations preclude a generalisation of results, however.     

The course of schizophrenia: progressive deterioration, amelioration or both?

BACKGROUND: Schizophrenia may follow a course of amelioration, deterioration or stability. It is possible that deterioration at the aggregate level may be due to a sub-group of patients with a tendency to deteriorate. AIMS: To examine the course of schizophrenia in a national population-based cohort. METHODS: All first admissions for schizophrenia in Israel 1978-1986 were followed for readmissions in the Israeli psychiatric hospitalization registry for 10 years (n=6865). Readmission rates were examined using cluster analysis. This was followed by an examination of changes in readmission patterns. RESULTS: Cluster analysis identified a small cluster of patients who spent more days in the hospital over time and two clusters that improved. A priori classification of the patients into deteriorating, improving and stable (based on days hospitalized per year) revealed that approximately 75% of patients improved over time. CONCLUSIONS: Over time a majority of patients appear to improve and a minority appear to deteriorate.     

The Kraepelinian dichotomy: preliminary results of a 15-year follow-up study on functional psychoses: focus on negative symptoms

In a 15-year follow-up study, we used a comparative approach to assess course and outcome for all functional psychoses. The presented results focus on negative symptoms and refer to a sample of 76 patients with schizophrenia, 38 patients with a schizoaffective disorder and 32 patients with an affective disorder according to ICD-9. These patients were assessed at their first psychiatric hospitalization and 15 years later. In summary, the findings indicate that the course and outcome of schizophrenia is less favorable than that of affective and schizoaffective disorders. Negative symptoms occurred in all functional psychoses, but were more frequent and prominent in the schizophrenic group than in the other two diagnostic groups at any time of assessment. Narrower concepts of negative symptoms, conceptualized as the deficit syndrome, seem to be specific for schizophrenia and appear quite rarely in patients with affective psychoses. Overall, our study supports Kraepelin's original hypothesis that bifurcated the psychoses into the affective psychoses and schizophrenia, whereby the latter have a more deleterious long-term course and outcome.     

The schizophrenia diagnosis in Denmark. A register-based investigation

Patients, Danish citizens only, admitted for the first time in 1972 to a Danish psychiatric institution were selected from the national psychiatric register. To be included, the probands had to have been diagnosed as schizophrenics at least once in the period from their first admission to 1 September 1983. The study comprised 370 males and 217 females with a total of 5,298 admissions. The probands' diagnostic pattern during the above period was investigated. More males (51.9%) than females (39.2%) (P less than 0.01) were diagnosed as schizophrenics during their first admission. The average period from a patient's first contact with an in-patient institution until schizophrenia was diagnosed for the first time was 2.2 years for females and 1.7 years for males (P less than 0.05). Personality disorders, reactive psychoses, and not classifiable psychoses were the most frequent diagnoses prior to the first schizophrenia diagnosis. The diagnostic stability of schizophrenia as main diagnosis, after its first application, was 73.6% for males among a total of 2,539 admissions and 71.2% for females among 1,141 admissions. There was greater correlation between the latest and former diagnoses than between the first and subsequent diagnoses. This is valid both when distinguishing between schizophrenia and non-schizophrenia and when focusing on schizophrenia subtypes. The results are discussed, particularly the problem concerning the selection of representative cohorts for schizophrenia research projects.     

Status of first-episode psychosis patients presenting for routine care in a defined catchment area.

OBJECTIVE: To examine the clinical and behavioural status of all first-episode psychosis (FEP) patients admitted to hospital within a defined catchment area. METHOD: We used a structured format to review clinical records of all first admissions to hospitals from a catchment area (population 390 000) with diagnosis of a first episode of nonaffective psychosis over a 3-year period. RESULTS: Patients were somewhat older than usually reported for FEP (mean age 31.3 years). They were mostly male (63.7%), single (80.8%), unemployed (87.4%), with a primary diagnosis of schizophrenia spectrum psychoses (85%), and had spent a mean of 31 days in an open inpatient unit and 2.93 days in an intensive care psychiatric unit during their first admission. Most (60.3%) were admitted involuntarily; 34.2% had a history of legal involvement; 18.8% had attempted suicide prior to admission; 31.5% had demonstrated violence toward people, property, or animals; 14.4% had suffered injuries; and 15.9% had shown aggressive behaviour during the hospital admission. CONCLUSIONS: These results identify some of the potential needs of FEP patients, toward whom early intervention services should be directed.     

Validation of Danish case register diagnosis for schizophrenia

The ABC schizophrenia study aims at investigating sex differences in age of onset, symptoms and course of schizophrenic and paranoid disorders. For this purpose, we used case register data from Denmark and Mannheim and a directly examined sample of first admissions (ABC sample). The Danish case register sample included less clinical diagnoses of schizophrenia and more schizophrenia-related disorders (acute paranoid reaction, paranoid states and borderline schizophrenia) than the Mannheim data (case register and ABC sample). The problem therefore was whether the two datasets are comparable and the results are valid. For this reason a randomized, stratified sample of 116 patients was drawn from the Danish case register sample. The case notes of these 116 patients were requested from the hospitals where the patients had been treated and analyzed by means of a scoring sheet based on the Interview for the Retrospective Assessment of the Onset of Schizophrenia (IRAOS). The use of operationalized diagnoses of the CATEGO program, based on PSE items, which are integrated in IRAOS, demonstrated that the samples of the Danish and the Mannheim case registers and the directly investigated ABC sample have comparable diagnostic distributions. Possible explanations for the differences between the clinical and the CATEGO diagnoses in the Danish case register may be the frequent use of diagnoses of borderline schizophrenia and reactive psychoses (previously called psychogenic psychoses), and above all a more narrow concept of schizophrenia; in Denmark, schizophrenia is diagnosed relatively late, i.e., after the presence of enduring negative symptoms, and thus mostly after the appearance of residual state. These diagnostic preferences may help to explain the fall in first admission rates for schizophrenia – above all in women – in Denmark and the low incidence rates of schizophrenia by first contact within the WHO determinants of outcome study. The earlier hospitalization of men could be replicated as well as the course of treatment (readmissions and discharges) of schizophrenic men and women over 10 years after first admission.     

A population based elaboration of the role of age of onset on the course of schizophrenia

BACKGROUND: Despite suggestions that an earlier age of onset and being male confer to a poorer course of schizophrenia, evidence regarding when these effects are most salient appears to be ambiguous. AIMS: To examine the relationship of age of first hospitalization and sex with the course of hospitalization in a population based cohort. METHOD: All first admissions for schizophrenia in a national population based cohort in Israel from 1978 to 1992 were followed through 1996 (n=12,071) using data from the National Psychiatric Hospitalization Case Registry of the State of Israel, a complete national registry of psychiatric admissions. Recursive partitioning was conducted to empirically determine cut-off points for age groups showing the greatest difference on the variables of interest. RESULTS: A younger age of first hospital admission was associated with a greater likelihood of having more than one hospital admission, longer first admissions, more hospital admissions and more inpatient days per year. Of patients with age of first admission below 17, 82.5% had more than one admission which decreased for subsequent age groups to 73.54% (18-28), 69.36% (29-31), 62.88% (32-45), and 50.77% (over 45). Men had an earlier first admission than women, and had slightly more cut-off values. Irrespective of sex, the relationship between age at first admission and later hospitalization conformed to a linear trend. CONCLUSIONS: An earlier onset corresponds linearly with the severity of the course of illness and appears to have prognostic value.     

Suicides in close connection with psychiatric care: an analysis of 57 cases in a Swedish county

Among 523 suicides committed in 1977-1984, 10 took place in a psychiatric hospital ward, 17 after the patient had left the ward without permission, 21 while the patient was on leave and nine 0-7 days after discharge. These 57 subjects were compared with 271 suicides committed more than 7 days after discharge or during outpatient care only (PCO). The male:female ratio was 1.0 in the former (PCI) group and 2.0 in the PCO group. The median age of the PCI subjects was 38 years. The suicide method was hanging in all 10 suicides (2 males, 8 females) committed in the psychiatric hospital ward. Depressive syndromes and, particularly schizophrenic and paranoid psychoses were more frequent among the PCI than among the PCO subjects. The extent of psychiatric care, as assessed by the number of admissions, was much greater in the PCI than in the PCO subjects. Environmental factors that might have been of causative importance for the suicidal act were of various kinds and differed to some extent between the two groups. Among the PCI subjects women seemed to have experienced family troubles more often than men, and situations of stressful psychiatric rehabilitation were more common among men.     

Are Psychiatrist Characteristics Associated With Postdischarge Suicide of Schizophrenia Patients?

Information on the relationship between characteristics of mental healthcare providers, including hospitals and psychiatrists, and postdischarge suicide is scanty. This study aims to identify the risk factors for suicide among schizophrenia patients in the 3-month postdischarge period. The study cohort comprised all patients with a principal diagnosis of schizophrenia discharged from psychiatric inpatient care from 2002 to 2004 who committed suicide within 90 days of discharge. The control cohort consisted of all surviving schizophrenia patients discharged from psychiatric inpatient care in the same period and were matched to cases for age, gender, and date of discharge. There were 87 and 348 cases in the study and control cohorts, respectively. For suicide cases, death most frequently occurred on the first day after leaving the hospital (16.1%). The adjusted hazard ratios for committing suicide during the 90-day postdischarge period were 2.639 times greater for patients without previous psychiatric admission than for those hospitalized more than 3 times in the year preceding the index hospitalization. The adjusted suicide hazard for schizophrenia patients treated by male psychiatrists was significantly higher than for patients treated by female psychiatrists, by a multiple of 5.117 (P = .032). The adjusted suicide hazard among patients treated by psychiatrists over age 44 years was 2.378 times (P = .043) that for patients treated by psychiatrists aged younger than 35 years. Risk factors related to psychiatric hospitalization, including number of psychiatric admissions in the previous year and length of stay, together with gender and age of the psychiatrist providing inpatient care, are identified.     

Why has the incidence of schizophrenia in Danish psychiatric institutions decreased since 1970?

From The Danish Psychiatric Register five cohorts of all first-admitted patients to Danish psychiatric institutions from the years 1970, 1973, 1976, 1979, and 1980 have been followed, and trends in age-standardized rates of schizophrenia investigated. The first-admission rates have decreased in both sexes, significantly in males. In addition, the cumulated schizophrenia rates for the cohorts, including those of patients diagnosed as schizophrenics only at a later admission within periods of 2 and 5 years, decreased. This decrease is significant at 2 years of observation in both sexes and at 5 years in females. The decreasing first-admission rates might be explained partly by changes in diagnostic habits. The differential diagnoses of schizophrenia (paranoid states (ICD-8:297), paranoid reactive psychoses (298.3), unspecified psychoses (298.9 and 299), and borderline states (ICD-8 Danish version: 301.83] are increasingly used as first-admission diagnosis for patients later to be diagnosed as schizophrenic, possibly owing to a tendency to avoid the diagnosis of schizophrenia, when treatment of a patient is possible. A method of calculating the hospital incidence of schizophrenia approaching the real incidence better than the incidence of first-admission diagnoses is suggested.     

Geographical analysis of the risk of psychiatric hospitalization in Hamburg from 1988 – 1994

The analysis of the geographical distribution of hospital cases is obviously important for the purpose of planning hospital services, but it is of even greater significance in the planning of psychiatric services. This concern motivated our seven-year-long study, which examined hospitalization risks among various categories of psychiatric disorders in the major German city of Hamburg. Our database encompassed 77% (n = 64,000) of all psychiatric admissions in a total of 41 hospitals, most of which are general hospitals. In order to carry out the geographical analysis we employed a new statistical method based on a mixture distribution model. According to our findings, the strongest indications of an increased frequency were among male cases of schizophrenia, drug abuse and organic psychoses, and female cases of neurotic disorders, personality disorders, drug abuse and schizophrenia. We found that some areas are exposed to a risk of hospitalization for these diagnostic categories which is more than 50% above the reference. Contrary to other authors we did not identify an increased frequency of admission concentrated in the inner-city area for any of the diagnostic groups. The risk of hospitalization for schizophrenics was almost entirely associated with the close proximity of psychiatric units, while the risks for neuroses and personality disorders, as well as alcohol and drug abuse, appeared to be concentrated in areas of low social status. However, a statistically relevant correlation between an increased risk of hospitalization and low social status could be determined only for drug abuse and alcoholism. In the end, we did identify two areas in which there was an increased risk of hospitalization for several diagnostic groups, and this information will undoubtedly facilitate the planning of hospital and psychiatric services. The fact that our findings deviate to some extent from other authors - especially with respect to neuroses and personality disorders, but also to addiction - can be attributed to the inclusion of psychiatric cases from general hospitals in our geographic analysis.     

Psychiatric disorders of old age in Enugu, Nigeria. Sociodemographic and clinical characteristics

A retrospective study of the demographic and clinical characteristics of 73 consecutive patients aged 60 years and over admitted for the first time into a psychiatric hospital in Nigeria shows that they constituted about 5% of all admissions over a 2-year period. While the majority (58%) were aged below 70 years, 8% were aged over 80 years, with more females than males living to the older age groups. Single status, separation and divorce were more common among males; widowhood was more common among the females. A high illiteracy rate of 86% was recorded, with more males than females being literate. More than 84% belonged to the 2 lowest socioeconomic classes. There was a significant difference in the distribution of diagnostic categories, with senile dementia, affective psychosis, neurotic disorders and paranoid states more common among the females, while arteriosclerotic dementia and schizophrenia were diagnosed more often among the males. Functional psychosis (49%) was the largest diagnostic category, followed by organic psychosis (30%), while neurotic disorders (10%) ranked third. Within the functional psychoses, paranoid states (30%) predominated, followed by affective disorders (14%) consisting mainly of depressive symptoms; 6% presented with schizophrenic illness; and 11% presented with physical illness with associated psychiatric manifestations. There was a long delay before referral to hospital, associated with use of alternative medical facilities (traditional and spiritual healers). The probable sociocultural antecedents and medical and social implications of these findings are discussed.     

A population based elaboration of the role of age of onset on the course of schizophrenia

BackgroundDespite suggestions that an earlier age of onset and being male confer to a poorer course of schizophrenia, evidence regarding when these effects are most salient appears to be ambiguous.AimsTo examine the relationship of age of first hospitalization and sex with the course of hospitalization in a population based cohort.MethodAll first admissions for schizophrenia in a national population based cohort in Israel from 1978 to 1992 were followed through 1996 (n = 12,071) using data from the National Psychiatric Hospitalization Case Registry of the State of Israel, a complete national registry of psychiatric admissions. Recursive partitioning was conducted to empirically determine cut-off points for age groups showing the greatest difference on the variables of interest.ResultsA younger age of first hospital admission was associated with a greater likelihood of having more than one hospital admission, longer first admissions, more hospital admissions and more inpatient days per year. Of patients with age of first admission below 17, 82.5% had more than one admission which decreased for subsequent age groups to 73.54% (18–28), 69.36% (29–31), 62.88% (32–45), and 50.77% (over 45). Men had an earlier first admission than women, and had slightly more cut-off values. Irrespective of sex, the relationship between age at first admission and later hospitalization conformed to a linear trend.ConclusionsAn earlier onset corresponds linearly with the severity of the course of illness and appears to have prognostic value.     

Consultation Psychiatry in a Japanese General Hospital: Patients Referred to Psychiatric Consultation*

Abstract: A total of 164 (47%) out of 350 new psychiatric patients in a general hospital in Japan were those referred to psychiatric consultation. In 47% of the cases, concurrent physical and psychiatric disorders were reported. In the referred patients, neurosis (38%) was the most common psychiatric disorder, followed by other nonorganic psychoses (9%), schizophrenic psychoses (8%), alcoholic psychoses (8%), transient organic psychotic conditions (7%), affective psychoses (6%) and others. The high frequency of psychiatric emergency cases (23%) including cases with suicide attempts (12%) indicated that psychiatrists play an important role in psychiatric emergency crisis intervention in the general hospital emergency service. In suicide attempts, depression was most prominent, but schizophrenic psychoses were also involved in a third of the cases.