Timothy J Croudace

Learn More
BACKGROUND A lack of an aetiologically based nosology classification has contributed to instability in psychiatric diagnoses over time. This study aimed to examine the diagnostic stability of psychosis diagnoses using data from an incidence sample of psychosis cases, followed up after 10 years and to examine those baseline variables which were associated(More)
Subtle motor, emotional, cognitive and behavioral abnormalities are often present in apparently healthy children and adolescents who later develop schizophrenia. This suggests that some aspects of causation are established long before psychosis is manifest. We aim to develop a descriptive model of the factors contributing to the development of(More)
Few studies have investigated risk factors for psychotic major depression (PMD). We aimed to investigate the biological and psychosocial risk factors associated with PMD compared with other psychotic disorders. Based on the aetiology and ethnicity in schizophrenia and other psychoses (ÆSOP) study, we used a case–control study to identify and recruit, at(More)
Major depressive disorder (MD) is a debilitating public mental health problem with severe societal and personal costs attached. Around one in six people will suffer from this complex disorder at some point in their lives, which has shown considerable etiological and clinical heterogeneity. Overall there remain no validated biomarkers in the youth population(More)
BACKGROUND Recurrent affective problems are predictive of cognitive impairment, but the timing and directionality, and the nature of the cognitive impairment, are unclear. AIMS To test prospective associations between life-course affective symptoms and cognitive function in late middle age. METHOD A total of 1668 men and women were drawn from the(More)
Increased risk of schizophrenia and other psychotic disorders among black Caribbean migrants and their descendants have been described since the 1960s. It remains unclear whether this risk varies over time, between rural and urban areas, or according to methodological artefact. We conducted a systematic review of the incidence of adult-onset psychotic(More)
To evaluate the psychometric properties of the EQ-5D and the usefulness of this instrument in psychiatric practice as a measure of health-related quality of life (HRQoL) in a sample of young adults with first-episode psychosis. The validity of individual questionnaire items is studied using an Item Response/Latent Trait Theory modeling approach. Sensitivity(More)
We aimed to investigate long-term outcomes in psychotic major depression patients compared to schizophrenia and bipolar/manic psychosis patients, in an incidence sample, while accounting for diagnostic change. Based on Aetiology and Ethnicity in Schizophrenia and Other Psychoses (ÆSOP and ÆSOP-10), a first episode psychosis cohort was followed-up 10years(More)
INTRODUCTION Levels of stress in UK university students are high, with an increase in the proportion of students seeking help in recent years. Academic pressure is reported as a major trigger. Mindfulness training has been shown to reduce stress and is popular among students, but its effectiveness in this context needs to be ascertained. In this pragmatic(More)
permissions Reprints/ permissions@rcpsych.ac.uk write to To obtain reprints or permission to reproduce material from this paper, please P<P Published online 2013-12-19T00:05:18-08:00 in advance of the print journal. to this article at You can respond http://bjp.rcpsych.org/cgi/eletter-submit/early/2013/11/21/bjp from Downloaded The Royal College of(More)