Stefi Barna

Predictors of syphilis seroreactivity and prevalence of HIV among street recruited injection drug users in Los Angeles County, 1994–6

Objectives: To describe HIV prevalence and the association between syphilis incidence and sexual and drug injection risk behaviours in a cohort of street recruited injecting drug users (IDUs) in Los Angeles County, between 1994 and 1996. Methods: During the study period, 513 street recruited African-American and Latino IDUs were screened for syphilis and antibodies to HIV. Subjects were administered a risk behaviour survey at baseline and followed up at 6 month intervals for 18 months with repeated interviews and serological screening. Rate ratios were used to examine associations between syphilis incidence and demographic characteristics and risk behaviours. A proportional hazard model was used to identify predictors of syphilis incidence independent of demographic characteristics. Results: 74% of the sample were male, 70% African-American, 30% Latino; and the median age was 43 years. Overall baseline serological prevalence of HIV was 2.5% and of syphilis 5.7%. None of the participants were co-infected for HIV and syphilis at baseline or at any of the 6 month follow ups. Among 390 eligible IDUs retained for analysis of incidence data, the overall syphilis incidence was 26.0 per 1000 person years. Higher syphilis incidence was found for women compared with men (RR=2.70; 95% CI 1.60, 4.55), and for those 44 years of age or younger compared with those 45 years of age and older (RR=2.26; 95% CI 1.25, 4.08). African-Americans were more likely to be syphilis incident cases when compared with Latinos, although the difference did not reach statistical significance (RR=1.27; 95% CI 0.72, 2.23). In bivariate analysis, risk behaviours significantly associated with higher syphilis incidence included injection of cocaine, “speedball” and heroin, “crack” smoking, recency of first injection event, backloading of syringes, injecting with others, exchanging drugs or money for sex, multiple sex partners, and non-heterosexual sexual preference. Variables that significantly predicted syphilis infection at follow up in the multivariate analysis included multiple sex partners (RR=7.8; 95% CI 2.4, 25.0), exchanging money for sex (RR=3.0; 95% CI 0.9, 9.6), and recent initiation to injection drug use (RR=4.6; 95% CI 1.1, 18.8). Conclusion: Syphilis transmission among IDUs in Los Angeles County remains a serious public health concern, particularly among IDUs who engage in trading of sex for money or drugs. Although low, the prevalence of HIV observed in this study constitutes a serious concern because of the potential for expanded HIV transmission in this susceptible population of IDUs with high syphilis incidence. Enhanced case finding screening efforts and prevention of transmission of sexually transmitted infections should specifically target hard to reach IDUs and their sexual partners.

The health effects of climate change: What does a nurse need to know?

The scientific evidence for anthropogenic climate change has been established with increasing precision and there are widespread concerns about its potential to undermine the public health gains of the past century. There is also a growing consensus across private and public sector organisations at national and international level that carbon reduction should be a policy aim. Various international nursing organisations have made strong position statements on the issue, arguing that nurses should be actively engaged as part of their roles in both health promotion and clinical practice. We point to education for sustainability initiatives in other health professions and share resources for curriculum development in nursing. The nurses of tomorrow will make a unique and significant contribution to protecting population health in an unstable climate, if todays nursing educators can help prepare them for this role.

Challenges to professionalism: Social accountability and global environmental change

Abstract This article explores the concept of professionalism as it relates to social change and social accountability, and expands on them in the light of global environmental changes. Professionalism in medicine includes concepts of altruism, service, professional knowledge, self-regulation and autonomy. Current dialogues around social accountability suggest that medical schools should re-orientate their strategy and desired education, research and service outcomes to the health needs of the communities they serve.This article addresses the following questions: • How do we reconcile ideas of medical professionalism with the demands of creating a more equal, just, sustainable and socially inclusive society? • What new challenges do or will we face in relation to environmental degradation, biodiversity loss, ecosystem health and climate change? • How can medical schools best teach social and environmental responsiveness within a framework of professionalism? • How do medical schools ensure that tomorrow’s doctors possess the knowledge, skills and attitude to adapt to the challenges they will face in future roles?We offer ideas about why and how medical educators can change, recommendations to strengthen the teaching of professionalism and social accountability and suggestions about the contribution of an emerging concept, that of “environmental accountability”.

What do tomorrow’s doctors need to learn about ecosystems? – A BEME Systematic Review: BEME Guide No. 36

Abstract Background: Human health is fundamentally determined by the health of ecosystems. Guidance is lacking about how to address the topic of ecosystems within medical education. Aims: To determine the nature of discussions around ecosystems in the educational, medical and medical education literature. To identify learning needs of tomorrow’s doctors. Methods: A narrative synthesis approach was used. Systematic searches were completed in 14 databases. Two independent reviewers screened results. Preliminary synthesis included textual descriptions and quality appraisal. Data were analysed using the Education for Sustainable Healthcare framework and thematic analysis. Relationships between studies were explored. Best evidence synthesis, contacting authors of primary studies and critical reflection reinforced robustness. Results: Six thousand seven hundred and fifty-three abstracts and 123 full texts were screened. Twenty-seven studies were included. Many studies lacked clear reporting. Medical students and doctors displayed knowledge about ecosystems, but lacked confidence to enact sustainable practices. Education about causes and consequences of environmental change is required. Few studies proposed specific learning objectives. Conclusions: To prepare for roles as health care workers and leaders, medical students must learn about relationships between ecosystems, health and health care. The Education for Sustainable Healthcare framework outlines essential knowledge and attitudes but requires addition of practical competencies. Further research should explore the framework’s relevance in different contexts, in order to structure training accordingly.