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Organizations targeting Latino populations for HIV services and prevention programs have developed strategies specific to very different groups within that community. Experts advise providers to be aware of the large amount of variation among Hispanics.
In an attempt to change the dietary behaviours of the population (and reduce the incidence of diet-related disease), governments and health authorities in Australia have developed Dietary Guidelines. These guidelines have been communicated to the wider society through a range of channels, such as health promotion programs and education campaigns. Studies conducted during the 1980's suggested that up to 30 percent of the population were engaging in food-related behaviours consistent with dietary guideline recommendations, although the extent of compliance varied by population sub-group (eg women and high socioeconomic groups were more likely to comply). More recent research has suggested that compliance with some of the guideline recommendations has increased, although disparities between population sub-groups remain. The aim of this present study is to determine the extent of compliance with the Australian Dietary Guidelines in the early 1990's, and thereby (indirectly) assess the degree to which health promotion efforts have affected the dietary behaviours of the population. The study is based on a representative sample (n = 403, 80.6% response rate) of Brisbane city. Overall, it was estimated that between 40 and 60 percent of the population were regularly engaging in food behaviours consistent with guideline recommendations. This rate of compliance, however, differed markedly depending on the type of behaviour being examined, and it varied significantly (albeit modestly) across different population sub-groups. It is concluded that health promotion has influenced the population's dietary behaviours, although traditional beliefs and attitudes also inform our food behaviours to a considerable extent.
OBJECTIVE: A review of the early performance of Ohio's statewide infant hearing screening program was performed to provide insight as to the impact of the current medical and socioeconomic climate on its implementation. BACKGROUND: In March 1988, the State of Ohio enacted a law that required universal screening of newborn children for hearing loss through a program known as the Infant Hearing Screening and Assessment Program (IHSAP). The program design consisted of a universally applied high-risk questionnaire followed by a screening auditory assessment for those who fail. Although the value of such a program engendered little early public debate, the institution of such a program represented a significant challenge from a public health perspective. STUDY DESIGN: The program performance was analyzed using data from the index population of 160,000 live births per annum and hospital surveys. RESULTS: The questionnaires were found to be failing twice the number of newborns as originally projected, whereas completion rates and compliance were excellent. The assessment arm was plagued with poor compliance rates and limited resources. Lack of resources for effective data management has prevented an accurate evaluation of the program's sensitivity and specificity. CONCLUSION: IHSAP performance is being hampered by poor assessment follow-up and resource limitations, both in terms of screening equipment and habilitative follow-up services for infants identified as hearing impaired. The reasons for these problems are discussed in relation to existing legislative guidelines and medicoeconomic realities.
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Immunisation against influenza is an important means of reducing morbidity and mortality amongst high-risk groups, and especially the elderly. Although immunisation has been recommended for these groups for many years, no timely or comprehensive monitoring at the national level was carried out in England before the beginning of this century. Annual numbers of doses administered were available, but not to whom they were given. This paper describes the results of a national rapid reporting scheme for England that was introduced by the Department of Health (DH) and PHLS Communicable Disease Surveillance Centre (CDSC). The scheme collected monthly data on influenza immunisation uptake among people aged 65 or more during the winters of 2000/2001 and 2001/2002. Results showed that DH annual targets of 60 and 65%, respectively were both met, although considerable variation occurred at the local levels. The feasibility of this method of monitoring immunisation uptake in the elderly is discussed.
A program of mass hepatitis A+B vaccination in preadolescents in schools was begun in the Catalonia in the last quarter of 1998. This study investigated the impact of the program by comparing the incidence of hepatitis A in vaccinated and unvaccinated cohort. The greatest reduction of the incidence rate of hepatitis A was observed in the 10-14 years age group, from 10.3 per 100000 persons-year in the period 1996-1998 to 1.8 per 100000 persons-year in the period 1999-2001. The global incidence decreased from 6.2 to 2.6 per 100000 persons-year. After analysis of cases occurring in the vaccinated and non vaccinated cohort, the effectiveness of the vaccination program was estimated at 97.0% (95% CI: 78.6-99.6).
The Health of the Nation initiative in the United Kingdom includes a target aimed at reducing the proportion of current injecting drug users who share syringes. The PHLS Collaborative Survey of Salivary Antibodies to HIV and Hepatitis B core in injecting drug users is a comprehensive and national surveillance mechanism which routinely collects data that can be used to monitor progress toward this target. Nineteen per cent of injecting drug users (353/1876) in 1992 and 18% (375/2138) in 1993 shared previously used injecting equipment (difference of -1.3%, 95% Cl -3.7%, 1.1%). Only with further years of data collection will it be possible to tell if this decline represents a real change in behaviour. There was a substantial reduction in the proportion of sharers who received previously used needles and syringes from more than one person, from 45% (138/305) in 1992 to 27% (81/298) in 1993 (fall of 18%, 95% Cl 11%, 26%). This decline could indicate a real reduction in risk behaviour that is not reflected in the target. Monitoring this aspect of sharing could be an important supplementary measure. Women were more likely to have share (adjusted OR = 1.87, 95% Cl 1.53, 2.28) and the likelihood of sharing declined with age (adjusted OR of each 5-year age band = 0.75, 95% Cl 0.72, 0.79). Particular attention should be given to interventions which aim to reduce sharing among women and young people. Clients of agencies at which the main service provided was syringe exchange were less likely to have shared than attenders of other types of agencies (adjusted OR = 0.69, 95% Cl 0.51, 0.93). This suggests that syringe exchange schemes play a role in reducing the transmission of HIV infection.
This study examines the effectiveness of a peer counselling program in Hong Kong for the elderly with depression living in the community, and its impact on the peer counsellors. Thirty depressed elderly subjects participated in the program, which was found to have improved their perceived health status and level of depression. As a result of their participation, subjects have also received more social support and adopted more positive coping strategies. As far as peer counsellors were concerned, they benefited in terms of personal growth through helping others, and helped to open a gateway to their own successful aging. Similar programs applied to wider populations and program evaluations utilizing both process and outcome measures are the key recommendations of this study.
This paper traces the evolution of AIDS-related policy and legislation in India from an initial response characterized by conservatism and discrimination to the development of a coherent national programme which aims to prevent the transmission of HIV and to develop support structures for people with HIV and AIDS. Examining the strategies, achievements and problems of specific components of the National AIDS Control Programme (NACP), the paper finds that the very progressive approach of national-level policy makers has been countered by conservative forces at the state and local levels. Little progress has been made, moreover, in incorporating HIV/AIDS prevention efforts into broader development and empowerment strategies. The paper concludes by considering the wider social context of AIDS in India and the role of more far-reaching policy measures.
Each sexually transmitted disease (STD) epidemic evolves through predictable phases, shaped by a dynamic interplay among the pathogen, the behaviors of the subpopulations in which it emerges, and the prevention efforts that are developed to limit its impact. As STD epidemics move through these phases, the sexual and social networks that fuel them become located in subpopulations characterized by progressively higher rates of sex partner change and less contact with the health care system. As a result, phase-appropriate prevention strategies and research issues are essential to reducing STDs and their consequences.
BACKGROUND: The Botswana antiretroviral program began in 2002 and currently treats 42,000 patients, with a goal of treating 85,000 by 2009. The World Health Organization (WHO) has begun to implement a surveillance system for detecting transmitted resistance that exceeds a threshold of 5%. However, the WHO has not determined when this threshold will be reached. Here we model the Botswana government's treatment plan and predict, to 2009, the likely stochastic evolution of transmitted resistance. METHODS: We developed a model of the stochastic evolution of drug-resistant strains and formulated a birth-death Master equation. We analyzed this equation to obtain an analytical solution of the probabilistic evolutionary trajectory for transmitted resistance, and used treatment and demographic data from Botswana. We determined the temporal dynamics of transmitted resistance as a function of: (i) the transmissibility (i.e., fitness) of the drug-resistant strains that may evolve and (ii) the rate of acquired resistance. RESULTS: Transmitted resistance in Botswana will be unlikely to exceed the WHO's threshold by 2009 even if the rate of acquired resistance is high and the strains that evolve are half as fit as the wild-type strains. However, we also found that transmission of drug-resistant strains in Botswana could increase to approximately 15% by 2009 if the drug-resistant strains that evolve are as fit as the wild-type strains. CONCLUSIONS: Transmitted resistance will only be detected by the WHO (by 2009) if the strains that evolve are extremely fit and acquired resistance is high. Initially after a treatment program is begun a threshold lower than 5% should be used; and we advise that predictions should be made before setting a threshold. Our results indicate that it may be several years before the WHO's surveillance system is likely to detect transmitted resistance in other resource-poor countries that have significantly less ambitious treatment programs than Botswana.
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The European regulations classify gasoline as "carcinogenic agent" because of its content of benzene (> 0.1%). Consequently the preventive and protective actions towards the petrol station attendants prescribe, before all, the elimination of the agent or the reduction of the exposure and the risk to the minimum. Well known are currently a series of preventive measures able to produce appreciable reduction of the risk: reduction of the benzene content of gasoline, vapor recovery systems, self-areas or do-it-yourself, specific procedures for working. Exposure assessment is an essential step in order to establish the need for further preventive measure and to verify their efficacy. The exposure levels to gasoline of the petrol station attendants can be influenced by a variety of factors other than benzene air concentrations and therefore biological monitoring can give some sensible advantage in respect to air monitoring. Dosage of benzene in expired air, in urine, or in blood give a very good estimation of the exposure to benzene but they are not test largely practicable today, because analytical, economical, organizational reasons. Recent studies suggest that the dosage in urine of trans,trans muconic acid (ttMA) or phenil mercapturic acid can be useful biomarkers of recent exposure, even at low levels of exposure such as in filling stations. Exposure conditions to gasoline vapors in filling stations are rapidly changing thanks to some technological innovations and legal restrictions and the exposure levels are much below the occupational air standards, Toxicological and epidemiological data (although not yet conclusive at low doses) suggest to carry out however health and epidemiological surveillance programs for the working population. A program for the health surveillance and biological monitoring is here proposed: a clinical examination, integrated with haematological tests and biological monitoring tests, must be carried out in pre-employment and subsequently repeated yearly in the highest exposure conditions. When the exposure levels should decrease the examinations could be carried out every two years.
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OBJECTIVE: The expanded programme on immunization (EPI) is an important part of the social commonwealth projects providing health care service by the government, which benefits communities. Government has the responsibility for EPI's financing which should be covered by the national budget. It is essential that the cost of EPI service be scientifically estimated to provide propriety information for policy makers. METHODS: This study, using the cost accounting theory of health economics, to calculate EPI service cost at different levels. 3 provinces, 3 prefectures, 9 counties, 18 towns and 12 villages were selected from three provinces Guizhou, Heilongjiang and Zhejiang from the western, central and eastern regions of the country. RESULTS: The average costs for one EPI-targeted child in Guizhou, Heilongjiang and Zhejiang, were 15.68 Yuan, 29.00 Yuan and 31.09 Yuan, and the costs for one dose were 10.99 Yuan, 18.64 Yuan and 16.51 Yuan, respectively. The costs for complete immunization program for one child were 131.88 Yuan, 242.32 Yuan and 280.67 Yuan, respectively. The main factors affecting the cost would include the average personnel cost (salary and benefit cost) by different economic levels of areas, the number of EPI items developed, and the number of total doses for one child. CONCLUSION: (1) Obvious differences were found between different areas. (2) The proportion of the cost was not reasonably set because of the shortage of input. (3) Guideline for different areas to compensate the working item cost according to the number of the items should be formulated.
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Development of strategies to prevent CHD in blacks is impeded by the virtual absence of clinical trials demonstrating the feasibility and effectiveness of interventions in blacks. The wholesale generalization that interventions effective (or ineffective) in whites are similarly effective in blacks may risk the employment of worthless or even dangerous interventions in blacks. Using available epidemiologic data, a number of risk factors may be more important in blacks than whites by virtue of higher prevalence, increased relative risk, or both. These may include hypertension, lipoprotein (a), smoking, diabetes, and obesity. Thus, health agencies might emphasize these risk factors when developing preventive programs targeted at black populations. Prevention programs may best seek to prevent the onset of risk factors found highly prevalent in black communities, rather than the costly and side-effect-prone interventions to treat risk factors once established. Thus, there is a role for community-based as well as a high-risk approaches. The community-based approaches should seek to work with organizations such as churches, which traditionally play strong roles in the black community. Physicians treating black patients should be aware of the potentially different roles played by risk factors, and treat aggressively those individuals identified to be at high risk. Risk factor management should be emphasized, rather than reduced, in patients with already established CHD. CHD has been clearly shown to be preventable; both blacks and whites should benefit from specific interventions aimed toward this worthy goal.