Dorothy J Begg

Learn More
In a longitudinal study of a birth cohort, the authors identified youth involved in each of 4 different health-risk behaviors at age 21: alcohol dependence, violent crime, unsafe sex, and dangerous driving habits. At age 18, the Multidimensional Personality Questionnaire (MPQ) was used to assess 10 distinct personality traits. At age 3, observational(More)
OBJECTIVE To describe usual water-related behaviour and 'near-drowning' incidents in a cohort of young New Zealand adults. METHOD This was a cross-sectional study based on data collected as part of the Dunedin Multidisciplinary Health and Development Study, which is the study of a cohort (n = 1,037) born between 1 April 1972 and 31 March 1973 in Dunedin,(More)
OBJECTIVE To determine whether involvement in sporting activity in mid-adolescence would deter delinquent behaviour in late adolescence. METHODS Members of a longitudinal cohort study were interviewed at ages 15 and 18 years and, among other topics, were asked questions relating to involvement in physical activity and delinquent behaviour. Logistic(More)
From a sample of 848 teenagers, 113 individuals had experienced 121 road traffic crashes. Five of the incidents involved a pedestrian, 62 a bicyclist, six a motor cyclist, 47 a motor vehicle passenger and one a motor vehicle driver. Sixty-two percent of the crashes involved injury and 67% vehicle immobilisation. Five of the injured teenagers were admitted(More)
In New Zealand, on 1 August 1987, a three-stage graduated driver licensing (GDL) system that applied to all new drivers aged 15-24 years was introduced. The essential elements of GDL were a 6-month learner license (supervised driving) and an 18-month restricted license stage (with restrictions on night driving and carrying passengers). A blood alcohol limit(More)
AIM The aim of this study was to identify demographic and behavioural factors associated with pre-licensed driving. METHOD A cohort comprising 3526 newly licensed drivers aged 15-24 years old from throughout New Zealand completed a questionnaire which sought information on pre-licensed driving behaviour and factors thought to be related to this. RESULTS(More)
OBJECTIVES In 1999, New Zealand lowered the minimum purchasing age for alcohol from 20 to 18 years. We tested the hypothesis that this increased traffic crash injuries among 15- to 19-year-olds. METHODS Poisson regression was used to compute incidence rate ratios for the after to before incidence of alcohol-involved crashes and hospitalized injuries among(More)
Johne's disease in ruminants is caused by the pathogenic bacterium Mycobacterium avium subspecies paratuberculosis (Map). Currently available Map commercial vaccines protect against clinical disease but not infection. In this study, the proprietary Johne's vaccine Neoparasec and an aqueous formulation of Map 316F (AquaVax) were tested in sheep. Detailed(More)
This is the second paper in a series of three that describe the epidemiology of motorcycle crashes in New Zealand that result in death and hospitalisation. The first paper presented an overview of all motorcycle crashes. This paper focuses on traffic crashes. The source of the fatality data was national mortality data files for the years 1978 to 1987(More)
This study was part of the Dunedin Multidisciplinary Health and Development Study. This is a longitudinal study of the health, development and behaviour of a cohort of 1037 young people born in Dunedin, New Zealand between 1 April 1972 and 31 March 1973. Explanatory measures covering background, behavioural and personality factors were obtained at ages 15(More)