An animal's fitness is in part based on its ability to manage the inherent risks (foraging costs, predation, exposure to disease) with the benefits (resource gain, access to mates, social interactions) of activity (Abrams 1991, Altizer et al. 2003, Lima & Bednekoff 1999, Rubenstein & Hohmann 1989, Wikelski et al. 2001). Thus, understanding an animal's pattern of activity is key to understanding behavioural and ecological processes. However, while numerous laboratory methodologies are available to continuously quantify activity over long periods of time, logistical difficulties have greatly hindered activity studies of animals in the field (DeCoursey 1990).

Objective: To assess a novel method for assessing risk and providing advice about activity to children and young people with congenital cardiac disease and their parents. Design and setting: Questionnaire survey in outpatient clinics at a tertiary centre dealing with congenital cardiac disease, and 6 peripheral clinics. Interventions: Children or their parents completed a brief questionnaire. If this indicated a desire for help, or a serious mismatch between advised and real level of activity, they were telephoned by a physiotherapist. Main measures of outcome: Knowledge about appropriate levels of activity, and identification of the number exercising at an unsafe level, the number seeking help, and the type of help required. Results: 253/258 (98.0%) questionnaires were returned, with 119/253 (47.0%) showing incorrect responses in their belief about their advised level of exercise; 17/253 (6.7%) had potentially dangerous overestimation of exercise. Asked if they wanted advice 93/253 (36.8%) said “yes”, 43/253 (17.0%) “maybe”, and 117/253 (46.2%) “no”. Of those contacted by phone to give advice, 72.7% (56/77) required a single contact and 14.3% (11/77) required an intervention that required more intensive contact lasting from 2 up to 12 weeks. Of the cohort, 3.9% (3/77) were taking part in activities that put them at significant risk. Conclusions: There is a significant lack of knowledge about appropriate levels of activity, and a desire for further advice, in children and young people with congenital cardiac disease. A few children may be at very significant risk. These needs can be identified, and clinical risk reduced, using a brief self-completed questionnaire combined with telephone follow-up from a suitably knowledgeable physiotherapist.

Objectives: To evaluate factors that predict HIV testing using the model of health care utilisation as its conceptual framework and to analyse some of the factors that encourage or inhibit seeking an HIV test in this population.

Method: A cross sectional questionnaire study in two Genito-Urinary Medicine (GUM) clinics in central Scotland. A final sample of 195 represented a 91% response rate. Participants were categorised by their HIV testing status (already tested, planning to be tested, no intention to seek testing).

Results: The ‘already tested’ and ‘planning to be tested’ groups were combined as there were no significant differences on reported risk behaviours. Analysis therefore compared two groups those ‘testing’ (n = 66) and ‘not testing’ (n = 129). 67% of those not tested for HIV reported at least one HIV risk factor. Perceived risk was the strongest predictor of HIV testing using our model. Perception of risk and actual risk were not correlated. Those not seeking testing endorsed less benefits of testing and more denial of the need to be tested. Same day testing and testing without an appointment were endorsed as factors to promote testing.

Conclusion: To encourage people who have high risk factors to access HIV testing, programmes should: (1) highlight the benefits of testing which would be lost if people do not test, eg. effective drug treatments (2) increase the range of HIV testing services available (eg. same day testing). Furthermore, studies to determine the main predictors of perceived risk are needed if we are to increase testing in relevant populations.

Objectives: This study explores the gender difference in patterns of drug use, risk behaviour, health and well-being among 934 new attenders at a Dublin syringe exchange.

Method: Over the period May 1997 to April 1998 data was collected by means of structured interviews with all clients who presented for the first time at Merchant's Quay health promotion unit. All information collected was based on clients' self-reported behaviour.

Results: Of the new clients, 24.3% were female and 75.7% were male. The female clients were significantly younger than their male counterparts (p < 0.0001). The women were significantly more likely to report having a sexual partner who was an injecting drug user (OR 9.04, 95% CI, 5.9-13.9) and to be living with an injecting drug user (OR 1.69, 95% CI, 1.2-2.3). They were also significantly more likely to share injecting equipment with their sexual partner (OR = 3.83, 95% CI, 2.7-5.5) and to report recently sharing injecting paraphernalia (OR = 1.79, 95% CI, 1.3-2.5). However, the interval between initiating intravenous drug use and first presenting at the Merchant's Quay health promotion unit was significantly shorter for female clients (p < 0.0001).

Conclusions: One of the most important concerns with regard to illicit intravenous drug use is that of needle sharing, and the associated risks of infection with human immunodeficiency virus and hepatitis. This study highlights the greater personal involvement of women with other drug users, and its consequences in terms of healthrelated problems and risk behaviour. There is a need to address this issue, by taking advantage of the fact that women present for treatment at a younger age than their male counterparts and at a much earlier stage in their injecting career.