Objective: The authors examined videotaped behaviors of children who developed schizophrenia as adults and of comparison subjects to disclose possible social and neuromotor deficits foreshadowing later development of schizophrenia.
Method: In 1972, a sample of 265 11-13-year-old Danish children were filmed under standardized conditions while they were eating lunch. The examination was part of a larger study investigating early signs of schizophrenia spectrum disorders.
Objective: The Danish Longitudinal Study of Alcoholism utilized a prospective, high-risk research paradigm to identify putative markers of adult male alcoholism from a comprehensive database that began with the birth of the subject and extended over three decades. This article focuses on measures antedating abusive drinking that predicted lifetime alcohol abuse/dependence at age 30 years.
Method: The original 330 subjects of this study were drawn from a large Danish birth cohort (N = 9,125) born between 1959 and 1961.
Univariate prediction models of schizophrenia may be adequate for hypothesis testing but are narrowly focused and limited in predictive efficacy. Therefore, we used a multivariate design to maximize the prediction of schizophrenia from premorbid measures and to evaluate the relative importance of various predictors. Two hundred twelve Danish subjects with at least one parent diagnosed in the schizophrenia spectrum (high risk) and 99 matched subjects with no such parent (low risk) were assessed on 25 premorbid variables in seven domains (genetic risk, birth factors, autonomic responsiveness, cognitive functioning, rearing environment, personality, and school behavior) when the subjects averaged 15 years of age.
View Article and Find Full Text PDFInt J Methods Psychiatr Res
January 2003
A large body of research suggests a relationship between maternal influenza and the development of schizophrenia in the adult offspring. Some researchers, however, have questioned this association. A study by Crow and Done (1992) asserts that prenatal exposure to influenza does not cause schizophrenia.
View Article and Find Full Text PDFObjective: The authors prospectively assessed the relationship between minor physical anomalies identified in childhood and adult psychiatric outcome.
Method: In 1972, minor physical anomalies were measured in a group of 265 Danish children ages 11-13. The examination was part of a larger study investigating early signs of schizophrenia spectrum disorders.
The current investigation examines perceived family relationships prior to the onset of psychopathology in a sample at high-risk for schizophrenia. Previous research suggests that environmental factors, such as family relationships, may contribute to later schizophrenia in high-risk individuals. This investigation extends work by Burman et al.
View Article and Find Full Text PDFMoldin et al. (1) have identified a cluster of Minnesota Multiphasic Personality Inventory (MMPI) scales that discriminate adolescents at risk for schizophrenia from those not at risk. The present study examines how well Moldin's scales predict schizophrenic decompensation in a sample of 207 Danish adolescents at high genetic risk for schizophrenia.
View Article and Find Full Text PDFObjective: The authors' goal was to determine whether early termination of breast-feeding contributes to later alcohol dependence, as proposed more than 200 years ago by the British physician Thomas Trotter.
Method: In 1959-1961, a multiple-specialty group of physicians studied 9, 182 consecutive deliveries in a Danish hospital, obtaining data about prepartum and postpartum variables. The present study concentrates on perinatal variables obtained from 200 of the original babies who participated in a 30-year high-risk follow-up study of the antecedents of alcoholism.
Br J Psychiatry Suppl
October 1998
Background: The current study examines teacher ratings as a tool for identifying students at risk of developing psychosis. Follow-up and follow-back studies have shown that teachers are capable of identifying individuals who later develop serious mental illness.
Method: We examine the long-term outcomes for individuals at genetic risk who were identified as showing markedly deviant behaviour and those identified who did not show markedly deviant behaviour.
Structural brain abnormalities such as ventricular enlargement are robust correlates of schizophrenia, but the degree of difference compared with unrelated normal controls is only moderate (< 1 standard deviation), and only 40% of patients have values on these measures that fall outside of the normal distribution. Family studies can help to clarify the meaning of this overlap by controlling for some of the non-schizophrenia-related genetic variation in neuroanatomical traits. Computerized tomographic scans of the brain were used to measure ventricular and sulcal cerebrospinal fluid (CSF) to brain ratios (VBR and SBR) for each hemisphere in 16 pairs of discordant siblings from the Copenhagen Schizophrenia High-Risk Project.
View Article and Find Full Text PDFActa Psychiatr Scand
November 1997
We conducted a 25-year follow-up study of 50 children of schizophrenic mothers, consisting of 25 children reared by their mothers and 25 children reared apart. The children's adult psychiatric status was evaluated in a 3-h structured interview employing a battery of syndrome check-lists and scales. A slightly higher incidence of psychopathology (including schizophrenia-spectrum disorders) was found among the reared-apart subjects.
View Article and Find Full Text PDFObjective: This study examines the role of elevated autonomic nervous system reactivity in protecting individuals at high risk for criminal behavior from antisocial outcomes. The authors hypothesized that subjects with criminal fathers who did not become criminals themselves were biologically protected from such an outcome because of, in part, heightened responsiveness of the autonomic nervous system.
Method: Ninety-four male subjects were placed into one of four study groups: criminal with criminal father (N = 26), noncriminal with criminal father (N = 24), criminal with noncriminal father (N = 20), and noncriminal with noncriminal father (N = 24).
No study has yet reported specifically on the early behavior of individuals later diagnosed with schizotypal personality disorder (SPD). This study examines prospectively collected teacher reports on school behavior as a means of assessing childhood precursors of SPD. Thirty-six DSM-III-R diagnosed schizotypal subjects were compared with four other groups: 31 schizophrenia patients, 37 diagnosed as nonpsychotic mentally ill, 68 who were not mentally ill but had mothers with schizophrenia, and 60 who were not mentally ill and had normal parents.
View Article and Find Full Text PDFBackground: Evidence has accumulated since the mid 1960s from a number of different countries indicating an association between mental disorder and crime and particularly between the major mental disorders and violence. Registries in Denmark were used to identify a birth cohort and to document all psychiatric admissions and all criminal proceedings of the 324401 members of this cohort up to the age of 43 years.
Methods: Persons who had been admitted to a psychiatric ward were assigned to a diagnostic category according to a hierarchy of principal discharge diagnoses.
Background: We examined differences in ventricular and sulcal cerebrospinal fluid-to-brain ratios as a function of lifetime psychiatric diagnosis in the offspring of schizophrenic mothers (high-risk sample) and in the offspring of normal parents (low-risk sample).
Methods: We used a cohort analytic study of 17 high-risk individuals with schizophrenia, 31 high-risk individuals with schizotypal personality disorder, 33 high-risk individuals with nonschizophrenia-spectrum psychiatric disorders, 45 high-risk individuals with no disorders, 31 low-risk individuals with psychiatric disorders of all types, and 46 low-risk individuals with no disorders, evaluated initially in 1962 when they were a mean age of 15 years, and reexamined from 1986 through 1989 with psychiatric interviews and computed tomographic scans of the brain.
Results: High-risk individuals with schizophrenia and schizotypal personality disorder evidenced an equivalent degree of cortical sulcal enlargement, and both groups evidenced significantly greater sulcal enlargement than did high-risk individuals with nonschizophrenia-spectrum disorders and no disorders and low-risk individuals with psychiatric disorders and no disorders.
A sample of 19 DSM-III-R schizophrenics and 94 controls with no mental illness from the Copenhagen high-risk project was used to test the hypothesis that social class of origin is related to adult CT measures of ventricular, sulcal, Sylvian fissure and anterior interhemispheric fissure enlargement, cerebellar pathology, and brain volume. The schizophrenics and controls were divided into high and low SES-of-origin. No significant differences emerged between the high and low SES-of-origin subjects within the schizophrenic and control groups on any of the six CT measures.
View Article and Find Full Text PDFObjectives: To perform a long-term prospective follow-up of children at high risk for schizophrenia to identify risk factors for the development of this disorder.
Design: Prospective follow-up population study of children of schizophrenic mothers and their matched controls from age 15 years to age 42 years, with multiple diagnostic assessments performed by senior clinicians using structured interviews blindly with respect to the group membership of the subject.
Participants: Two hundred seven offspring of schizophrenic mothers and 104 control children without schizophrenic parents matched to the index group on age, sex, paternal socioeconomic status, urban/rural residence, and the amount of time spent during childhood in institutional rearing.
Objective: We examined the contributions of genetic risk for schizophrenia and obstetric complications to brain morphological abnormalities in the offspring of schizophrenic and normal patents.
Methods: We used a cohort analytic study of 60, 72, and 25 individuals with neither, one, or two parents, respectively, who were affected with schizophrenia spectrum disorders, evaluated initially in 1962 when they were on average 15 years old, and reexamined from 1986 through 1989 with psychiatric interviews and computed tomographic scans of the brain.
Results: After controlling for the effects of age, gender, substance abuse, and history of organic brain syndromes and head injuries, there were significant stepwise, linear increases in cortical and ventricular cerebrospinal fluid-brain ratios with increasing level of genetic risk for schizophrenia.
Heart rate activity and computed tomographic measures of structural brain abnormalities were evaluated in 32 individuals with a genetic risk for schizophrenia (offspring of schizophrenic mothers). Heart rate activity was assessed in 1962 when the subjects were a mean age of 15.1 years.
View Article and Find Full Text PDFActa Psychiatr Scand
May 1992
A study of the extent of homelessness among 1581 psychiatric patients in Copenhagen found that 342 patients (22%) in contact with the psychiatric services had serious housing problems. A total of 112 (7%) were long-stay patients without a home address, 134 (8%) were in an unstable housing situation and 96 (6%) were actually homeless. The homeless among the psychiatric patients were characteristically single, on disability pension or general public assistance, most often under 45 years of age, often schizophrenic and, among the men, almost one third were alcohol abusers.
View Article and Find Full Text PDFActa Psychiatr Scand Suppl
September 1991
This is the terminal report on the pilot implementation phase of the national mental health programme in the United Republic of Tanzania which was carried out as a cooperative venture between the Government of Tanzania, the Danish International Development Agency (DANIDA), and the World Health Organization (WHO). Although Tanzania had already achieved wide coverage of its population through a decentralized and easily accessible system of primary health care facilities providing the most essential services, its mental health services were poorly staffed and concentrated in a few custodial-type institutions and out-patient departments hardly capable of ensuring even one contact per year to about one-fifth of the estimated 100,000 severely mentally ill adults and 37,000 children in need of care at any given point in time. The programme design, developed jointly by the three parties involved, aimed to take full advantage of Tanzania's existing primary health care infrastructure by integrating mental health into the general health services of the country, including the 'grassroot' level of the services in the village and the district.
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