The Roscommon Family Study

A Coefficient of Agreement for Nominal Scales

1960 • 37,524 citations

Dementia Praecox or the Group of Schizophrenias

1951 • 4,409 citations

Dementia Praecox and Paraphrenia.

1972 • 3,028 citations

Establishment of Diagnostic Validity in Psychiatric Illness: Its Application to Schizophrenia

1970 • 2,197 citations

The Family History Method Using Diagnostic Criteria

1977 • 1,906 citations

Early manifestations and first-contact incidence of schizophrenia in different cultures: A preliminary report on the initial evaluation phase of the WHO Collaborative Study on Determinants of Outcome of Severe Mental Disorders

1986 • 951 citations

The Vermont longitudinal study of persons with severe mental illness, II: Long-term outcome of subjects who retrospectively met DSM-III criteria for schizophrenia

1987 • 817 citations

The Roscommon Family Study

1993 • 712 citations

The types and prevalence of mental illness in the biological and adoptive families of adopted schizophrenics

1968 • 707 citations

Crossing the Border Into Borderline Personality and Borderline Schizophrenia

1979 • 608 citations

The Family History Approach to Diagnosis

1986 • 537 citations

THE EFFECT OF METHODS OF ASCERTAINMENT UPON THE ESTIMATION OF FREQUENCIES

1934 • 500 citations

Psychiatric Disorders in the Relatives of Probands With Affective Disorders

1984 • 494 citations

A Population-Based Twin Study of Major Depression in Women

1992 • 456 citations

Morbidity Risks of Schizophrenia and Affective Disorders among First Degree Relatives of Patients with Schizophrenia, Mania, Depression and Surgical Conditions

1980 • 432 citations

A Controlled Family Study of Chronic Psychoses

1988 • 347 citations

An Evaluation of the Family History Method for Ascertaining Psychiatric Disorders

1982 • 300 citations

A family study of schizophrenic and normal control probands: implications for the spectrum concept of schizophrenia

1985 • 298 citations

The Structured Interview for Schizotypy (SIS): A Preliminary Report

1989 • 291 citations

Diagnostic Approaches to Schizotypal Personality Disorder: A Historical Perspective

1985 • 278 citations

Psychiatric Illness in First-degree Relatives of Schizophrenic and Surgical Control Patients

1985 • 278 citations

The transmission of schizophrenia under a multifactorial threshold model.

1983 • 256 citations

Mental illness in the biological and adoptive families of adopted individuals who have become schizophrenic: a preliminary report based on psychiatric interviews.

1975 • 254 citations

An Independent Analysis of the Copenhagen Sample of the Danish Adoption Study of Schizophrenia

1981 • 251 citations

Prevalence Studies in Schizophrenia

1987 • 247 citations

The Nosologic Validity of Paranoia (Simple Delusional Disorder)

1980 • 235 citations

Applicability of chi-square to 2 × 2 contingency tables with small expected cell frequencies.

1978 • 214 citations

An Independent Analysis of the Danish Adoption Study of Schizophrenia

1984 • 212 citations

The structure of schizotypy: A pilot multitrait twin study

1991 • 197 citations

Familial Transmission of DSM-III Borderline Personality Disorder

1982 • 176 citations

Genetic and Nosological Aspects of Schizotypal and Borderline Personality Disorders

1984 • 170 citations

Schizoaffective illness, schizophrenia and affective disorders: morbidity risk and genetic transmission

1982 • 165 citations

Schizophrenia and Civilization

1980 • 149 citations

Familial Aggregation of Schizophrenia and Schizophrenia Spectrum Disorders

1988 • 144 citations

Stability of Psychiatric Diagnosis

1981 • 143 citations

Familial transmission of schizotypal and borderline personality disorders

1985 • 136 citations

Age at Onset in Schizophrenia

1987 • 135 citations

A DSM-III family study of the nonschizophrenic psychotic disorders

1986 • 134 citations

A family history study of schizophrenia-related personality disorders

1984 • 132 citations

Psychiatric Disorders in the Families of Borderline Patients

1983 • 131 citations

Psychiatric Illness in First-Degree Relatives of Patients with Paranoid Psychosis, Schizophrenia and Medical Illness

1985 • 120 citations

The Significance of Psychotic Affective Disorders

1975 • 120 citations

The Reliability of the Family History Method for Psychiatric Diagnoses

1988 • 112 citations

The inheritance of schizophrenia spectrum disorders: a reanalysis of the Danish adoptee study data

1983 • 112 citations

A Follow-up and Family Study of Schizophrenia

1983 • 109 citations

The Heritability of Schizophrenia and Schizoaffective Disorder

1988 • 109 citations

Prevalence of DSM III schizophrenia among the first‐degree relatives of schizophrenic probands

1985 • 107 citations

The Group of Schizophrenias, Schizoaffective Psychoses, and Affective Disorders

1980 • 106 citations

CLINICAL AND GENETIC STUDIES ON BENIGN SCHIZOPHRENI‐ FORM PSYCHOSES BASED ON A FOLLOW‐UP

1958 • 102 citations

The genetics of schizophrenia: a reassessment using modern criteria

1983 • 99 citations

Nature of the genetic contribution to psychotic illness ‐ a continuum viewpoint

1990 • 98 citations

Type I error rate of the chi-square test in independence in R × C tables that have small expected frequencies.

1979 • 95 citations

A Methodological, Psychiatric, and Statistical Study of a Large Swedish Rural Population.

1955 • 89 citations

The Super-Normal Control Group in Psychiatric Genetics

1990 • 88 citations

The significance of genetic factors in the etiology of schizophrenia: Results from the national study of adoptees in Denmark

1987 • 85 citations

Genetic relationship between paranoid personality disorder and the "schizophrenic spectrum" disorders

1982 • 85 citations

Paranoid Psychosis (Delusional Disorder) and Schizophrenia

1981 • 84 citations

Prognosis and Outcome Using Broad (DSM-II) and Narrow (DSM-III) Concepts of Schizophrenia

1984 • 82 citations

The finnish adoptive family study of schizophrenia

1987 • 80 citations

DSM-III-R schizotypal personality traits in offspring of schizophrenic disorder, affective disorder, and normal control parents

1989 • 78 citations

Psychotic features in major depression

1982 • 76 citations

A comparison of nine systems to diagnose schizophrenia

1982 • 75 citations

The Validity of Good Prognosis Schizophrenia

1972 • 74 citations

A study of schizophrenia. A clinical, prognostic and family investigation.

1970 • 73 citations

Failure to find evidence of schizophrenia in first-degree relatives of schizophrenic probands

1982 • 67 citations

Relationship between schizoaffective illness and affective disorders or schizophrania

1980 • 63 citations

Estimating familial effects on age at onset and liability to schizophrenia. I. Results of a large sample family study

1990 • 61 citations

The treated prevalence of mental illness in the Republic of Ireland – the three county case register study

1980 • 61 citations

Evidence for Geographical Variations in the Prevalence of Schizophrenia in Rural Ireland

1991 • 59 citations

Mental disorders in first‐degree relatives of schizophrenics

1991 • 59 citations

Ransam - random sample design for Ireland

1979 • 57 citations

A Family History Study of Borderline Subtypes

1989 • 57 citations

Incidence of schizophrenia in Ireland

1987 • 56 citations

Selection of Controls for Family Studies

1988 • 56 citations

Psychotic depressive disorder

1983 • 55 citations

A family study of DSM-III-R schizoaffective disorder, depressive type, compared with schizophrenia and psychotic and nonpsychotic major depression

1991 • 55 citations

Phenomenology and family history in DSM-III psychotic depression

1985 • 54 citations

Endemic psychosis in western Ireland

1984 • 53 citations

Is there an increase of reproductive rates in schizophrenics?

1982 • 53 citations

A Twin Study of Mortality in Schizophrenia and Neurosis

1986 • 53 citations

The specificity of DSM-III schizotypal personality traits

1988 • 52 citations

Affective and Schizoaffective Disorders : Similarities and Differences

1990 • 48 citations

THE CALCULATION OF MORBID RISK IN PARENTS OF INDEX CASES, AS APPLIED TO A FAMILY SAMPLE OF SCHIZOPHRENICS

1954 • 45 citations

Estimating morbidity risks in relatives: The effect of reduced fertility

1983 • 39 citations

An Independent Analysis of the Copenhagen Sample of the Danish Adoption Study of Schizophrenia

1981 • 38 citations

STUDIEN UEBER VERERBUNG UND ENTSTEHUNG GEISTIGER STÖRUNGEN

1920 • 38 citations

The prevalence of schizophrenia in three counties in Ireland

1990 • 34 citations

The case record rating scale: a method for rating symptom and social function data from case records

1981 • 34 citations

Paranoid states of middle life:FAMILIAL OCCURRENCE AND RELATIONSHIP TO SCHIZOPHRENIA

1980 • 33 citations

Mental illness in the Republic of Ireland--first admissions.

1970 • 33 citations

Morbidity Risks of Schizophrenia and Affective Disorders among First-Degree Relatives of Patients with Schizoaffective Disorders

1991 • 33 citations

The impact of diagnostic hierarchies on prevalence estimates for psychiatric disorders

1988 • 30 citations

The relationship of paranoid states to schizophrenia

1985 • 30 citations

Schizoaffective, psychotic, and nonpsychotic depression: Differential familial association

1986 • 28 citations

Simple segregation analysis: a review of its history and terminology

1982 • 26 citations

The pattern of illness in pairs of psychotic siblings

1984 • 25 citations

Improving the validity of FH-RDC diagnosis of major affective disorder in uninterviewed relatives in family studies: A model based approach

1988 • 21 citations

Fitness and the risk of illness and ?spectrum disorder? in offspring, parents, and siblings

1986 • 18 citations

A comparative study on schizophrenia diagnosed by ICD-9 and DSM-III: Course, family history and stability of diagnosis

1988 • 13 citations

Diagnostic systems for schizophrenia

1986 • 13 citations

The proband method in psychiatric epidemiology: A bias associated with differences in family size

1988 • 12 citations

Genetic epidemiological study of schizophrenia: Two modes of sampling

1991 • 11 citations

A retrospective study of first admissions of young people to psychiatric hospitals in Galway, Roscommon and Carlow.

1972 • 2 citations

Deleted Work

1955 • 0 citations