Nossal Institute for Global Health - Research Publications
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ItemKAP surveys and malaria control in Vietnam: findings and cautions about community research(SEAMEO Tropmed, 2005-05)The malaria disease burden is increasing in many countries despite the existence of effective preventative strategies and antimalarial drugs. An understanding of community perspectives and practices is one of the essential components of a successful malaria control program. This paper reports on a KAP (Knowledge, Attitudes and Practices) survey among the Raglai ethnic minority population in Ninh Thuan Province, Vietnam, which in 2003 had one of the country's highest confirmed rates of malaria. We found high levels of correct knowledge about malaria's transmission and symptoms, and self-reports of adequate bed net usage and appropriate health-seeking behavior. While the survey generated useful findings, an initial, qualitative investigation (eg, observation and focus group discussions) to explore the large numbers of potential influences on behavior and exposure risk would have provided a more robust underpinning for the design of survey questions. This would have strengthened its validity and generated additional information. The adoption of rigorous, multi-disciplinary research methods offers the best chance of contributing to the development of successful malaria control programs and effective policies.
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ItemProbable psittacosis outbreak linked to wild birds(CENTERS DISEASE CONTROL, 2005-03)In autumn 2002, an outbreak of probable psittacosis occurred among residents of the Blue Mountains district, Australia. We conducted a case-control study to determine independent risk factors for psittacosis by comparing exposures between hospitalized patients and other residents selected randomly from the telephone directory. Of the 59 case-patients with laboratory results supportive of psittacosis, 48 participated in a case-control study with 310 controls. Independent risk factors were residence in the upper Blue Mountains (odds ratio [OR] 15.2, 95% confidence interval [CI] 5.6-41.7), age of 50-64 years (OR 3.9, 95% CI 1.5-10.5), direct contact with wild birds (OR 7.4, 95% CI 2.5-22), and mowing lawns without a grass catcher (OR 3.2, 95% CI 1.3-8.0). Protective equipment is recommended for residents in areas frequented by free-ranging birds if contact with birds and their droppings is likely when performing outdoor activities such as lawn mowing.
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ItemA pilot study of the quality of informed consent materials for Aboriginal participants in clinical trials(BMJ PUBLISHING GROUP, 2005-08-01)OBJECTIVE: To pilot informed consent materials developed for Aboriginal parents in a vaccine trial, and evaluate their design and the informed consent process. METHODS: Cross sectional quantitative and qualitative survey of 20 Aboriginal and 20 non-Aboriginal women in Alice Springs. Information about the proposed research was presented to Aboriginal participants by an Aboriginal researcher, using purpose designed verbal, visual, and written materials. Non-Aboriginal participants received standard materials developed by the sponsor. Questionnaires were used to evaluate recall and understanding immediately and five days later. Qualitative analysis of Aboriginal participants' interviews was performed. RESULTS: There were no differences between the groups in understanding of diseases prevented by the vaccine, the potential risks of participating, or the voluntary nature of participation. Most Aboriginal participants had difficulty with the concept of a "licensed" versus "unlicensed" vaccine. The non-Aboriginal group had a good understanding of this. Aboriginal participants identified the use of the flipchart, along with a presentation by a doctor and Aboriginal health worker, as preferred delivery modes. Group presentations were preferred rather than one-on-one discussions. The use of the questionnaire posed considerable methodological difficulties. CONCLUSIONS: A one-off oral presentation to Aboriginal participants is unlikely to produce "informed consent". Key but unfamiliar concepts require identification and particularly considered presentation.
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ItemSafer injections, fewer infections: injection safety in rural north India(WILEY, 2005-05)BACKGROUND: Unsafe injection practices result in a substantial burden of preventable blood-borne viral disease (BBV). The reasons are complex and include structural, economic and socio-cultural factors. OBJECTIVE: To describe injection-related practices in two rural north Indian health settings including the contextual factor, highlight some of the challenges facing those endeavouring to translate injection safety policies into safe injection practice, and to identify appropriate intervention strategies. METHOD: Qualitative data collection (participant observation and in-depth interviews) in two rural north Indian hospitals with affiliated community-based programmes over a 4-month period. A total of 130 h of observation took place in a range of clinical areas characterized by frequent use of needles and other sharps, and 40 healthcare workers were interviewed. Field notes and interview transcripts were thematically analysed. RESULTS: Managers in these health settings were clearly endeavouring to promote injection safety by implementing the widespread use of disposable needles and syringes and attempting to address the difficult issue of safe healthcare waste management. However, some unsafe practices were still occurring: reuse of syringes (with and without sterilization) was relatively common, and use of multi-dose vials, blood sampling, sterilization and disinfection, and healthcare waste management were sub-optimal in some instances, placing both staff and patients at unnecessary risk of BBV infection. CONCLUSION: Strategies for promoting injection safety are necessary if the risk of nosocomial transmission of BBV diseases via unsafe injection practices in rural north India is to be minimized.
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ItemOccupational exposure to blood and risk of bloodborne virus infection among health care workers in rural north Indian health care settings(MOSBY, INC, 2005-02)BACKGROUND: Approximately 3 million health care workers (HCWs) experience percutaneous exposure to bloodborne viruses (BBVs) each year. This results in an estimated 16,000 hepatitis C, 66,000 hepatitis B, and 200 to 5000 human immunodeficiency virus (HIV) infections annually. More than 90% of these infections are occurring in low-income countries, and most are preventable. Several studies report the risks of occupational BBV infection for HCWs in high-income countries where a range of preventive interventions have been implemented. In contrast, the situation for HCWs in low-income countries is not well documented, and their health and safety remains a neglected issue. OBJECTIVE: To describe the extent of occupational exposure to blood and the risk of BBV infection among a group of HCWs in rural north India. METHODS: A cross-sectional survey of HCWs from 7 rural health settings gathered data pertaining to occupational exposure to blood and a range of other relevant variables (eg, demographic information, compliance with Universal Precautions, perception of risk, knowledge of BBVs). A mass action model was used to estimate the risk of occupational BBV infection for these HCWs over a 10-year period. RESULTS: A total of 266 HCWs returned questionnaires (response rate, 87%). Sixty-three percent reported at least 1 percutaneous injury (PI) in the last year (mean no. = 2.3) and 73% over their working lifetime (mean no. = 4.2). Predictors of PI during the last year were hospital site, job category, perception of risk, and compliance with Universal Precautions. CONCLUSION: The high level of occupational exposure to blood found among this group of rural north Indian HCWs highlights the urgent need for interventions to enhance their occupational safety to prevent unnecessary nosocomial transmission of BBVs.
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ItemCompliance with universal/standard precautions among health care workers in rural north India(MOSBY-ELSEVIER, 2005-02)BACKGROUND: Universal Precautions (UPs) and more recently Standard Precautions have been widely promoted in high-income countries to protect health care workers (HCWs) from occupational exposure to blood and the consequent risk of infection with bloodborne pathogens. In low-income countries, the situation is very different: UPs are often practiced partially, if at all, thereby exposing the HCWs to unnecessary risk of infection. The aim of this study is to describe rural north Indian HCWs knowledge and understanding of UPs and identify predictors of compliance to target intervention programs appropriately. METHODS: A cross-sectional survey was undertaken, involving 266 HCWs (response rate, 87%) from 7 rural north Indian health care settings. Information was gathered regarding compliance with UPs and a range of other relevant variables that potentially influence compliance (eg, demographic information, perception of risk, knowledge of bloodborne pathogen transmission, perception of safety climate, and barriers to safe practice). RESULTS: Knowledge and understanding of UPs were partial, and UPs compliance was suboptimal, eg, only 32% wore eye protection when indicated, and 40% recapped needles at least sometimes. After controlling for confounding, compliance with UPs was associated with being in the job for a longer period, knowledge of bloodborne pathogen transmission, perceiving fewer barriers to safe practice and a strong commitment to workplace safety climate. CONCLUSION: Interventions to improve UPs compliance among HCWs in rural north India need to address not only their knowledge and understanding but also the safety climate created by the organizations that employ them.