Learn More
BACKGROUND Reports of adolescent suicidal behaviour have generally derived from clinical settings but population-based studies are likely to provide a clearer epidemiological view. METHODS Non-fatal suicidal behaviours were studied in 1699 Australian 15- to 16-year-old secondary school students at 44 schools in the state of Victoria, Australia.(More)
In most cases of schizophrenia the onset of frank psychosis is preceded by a period of prodromal features. This period has been relatively neglected by researchers and is potentially important in promoting early intervention. The prevalence of DSM-III-R schizophrenia prodrome symptoms was assessed as part (n = 657) of a large (n = 2525) questionnaire-based(More)
STUDY OBJECTIVE The aim of this study was to determine the effect of a multilevel school based intervention on adolescents' emotional wellbeing and health risk behaviours. DESIGN School based cluster randomised controlled trial. Students were surveyed using laptop computers, twice in the first year of intervention and annually thereafter for a further two(More)
STUDY OBJECTIVE Psychiatric disorder often begins at adolescence. This study aimed to examine the associations between puberty and social circumstances and the adolescent rise in depression and anxiety. DESIGN A two stage cluster sampling procedure was used to identify a representative group of Australian secondary school students in years 7 (age 12-13(More)
BACKGROUND Adverse life events prior to episodes of depression are assumed to play a causal role. Earlier studies have, however, not adequately controlled for the potential confounding effects of previous depression. METHOD A two-phase study was nested within a six-wave population based cohort study of 1947 adolescents. Interviews at two assessment phases(More)
Computer-administered questionnaires have been little explored as a potentially effective and inexpensive alternative to pencil and paper screening tests. A self-administered computerised form of the revised Clinical Interview Schedule (CIS-R) was compared with the Composite International Diagnostic Interview (CIDI) in a two-phase study of 2032 Australian(More)
Dieting in adolescent girls is ubiquitous but its health significance is uncertain. On the one hand it might be seen as promoting healthy weight control and on the other it might be considered as a risk factor for eating disorders. Dieting levels were systematically assessed in a representative group of 2525 Australian teenagers and classified using item(More)
OBJECTIVE The objective of this paper is to outline the conceptual background and strategy of intervention for a systematic and sustainable approach to mental health promotion in secondary schools. METHOD The conceptual origins of the Gatehouse Project are described in terms of the epidemiology of adolescent mental health problems, attachment theory,(More)
Ventilation is lower during sleep than wakefulness. An increase in airway resistance has been proposed as the critical factor. As the change in ventilation has been shown to occur abruptly at transitions between alpha and theta electroencephalogram activity, it was of interest to determine whether the increase in airway resistance between wakefulness and(More)