Exploring tuberculosis patients' adherence to treatment regimens and prevention programs at a public health site.

Our aim with this study was to explore the factors that contribute to tuberculosis patients' adherence and nonadherence to the Directly Observed Treatment Short Course strategy. A qualitative, phenomenological research design was used. Fifteen male and female participants between the ages of 18 and 57 years were recruited through purposive sampling at a primary care clinic located in a disadvantaged area, and in-depth interviews were conducted. The data analysis indicated that the factors found to influence adherence were social and economic resources; causal attributions assigned to TB; the social, cultural, economic, disease-related, and psychological challenges faced as a consequence of having TB; quality of health care received; use of the traditional healing system; and the participants' HIV status. Factors found to be associated with nonadherence included poverty, HIV co-infection, stigma, unsupportive social and work environments, and a high prevalence of helplessness and hopelessness.

Treatment adherence among primary care patients in a historically disadvantaged community in South Africa: a qualitative study.

The present study examined the issue of treatment adherence among a sample of 23 rural South African patients living with either hypertension or diabetes, or both. The sample was asked to participate in qualitative interviews that asked about various aspects of their experience of their illness and treatment. The analysis of the data focused on the content of participants' concerns and difficulties with adhering to treatment recommendations. The themes that emerged from the study were participants' attribution of the origin of their illness, their subjective experience of their illness, their concerns about the consequences of poor adherence, financial problems and psychosocial support.

Cost-effectiveness analysis of an alternative tuberculosis management strategy for permanent farm dwellers in South Africa amidst health service contraction.

AIM: To establish the cost-effectiveness of lay health workers (LHWs) in conjunction with the current, local tuberculosis (TB) control programme, amidst health service contraction. METHOD: A cost-effectiveness analysis, comparing direct time costs of the current TB management strategy among permanent farm dwellers, with an intervention, whereby LHWs are involved in TB control activities on farms. Measure of effectiveness was case finding and cure rates of adult new smear-positive (NSP) TB cases, alongside a randomized control trial (RCT): RESULTS: The observed cost reduction to the Boland Health District was 74% per case detected and cured on the intervention farms relative to the control farms. Intervention farms reached 83% successful treatment completion rate, control farms 65%. Although the successful treatment adherence was significantly different (18% letter). The improved case detection and cure rates were not statistically significant (chi-squared test). Direct LHW costs are borne by farmers. Farmers were motivated to bear costs by reduced job absenteeism and other positive side-effects. Even without outcome improvements costs per case cured were 59% lower on the intervention farms. CONCLUSION: TB control has suffered from budget reductions in South Africa. It is critically important to develop cost-effective strategies to reduce the TB burden. Costs to public budgets can be substantially reduced while maintaining or improving case detection and treatment outcomes, by using farm-based LHWs.

Staff training and ambulatory tuberculosis treatment outcomes: a cluster randomized controlled trial in South Africa.

OBJECTIVE: To assess whether adding a training intervention for clinic staff to the usual DOTS strategy (the internationally recommended control strategy for tuberculosis (TB)) would affect the outcomes of TB treatment in primary care clinics with treatment success rates below 70%. METHODS: A cluster randomized controlled trial was conducted from July 1996 to July 2000 in nurse-managed ambulatory primary care clinics in Cape Town, South Africa. Clinics with successful TB treatment completion rates of less than 70% and annual adult pulmonary TB loads of more than 40 patients per year were randomly assigned to either the intervention (n = 12) or control (n = 12) groups. All clinics completed follow-up. Treatment outcomes were measured in cohorts of adult, pulmonary TB patients before the intervention (n = 1200) and 9 months following the training (n = 1177). The intervention comprised an 18-hour experiential, participatory in-service training programme for clinic staff delivered by nurse facilitators and focusing on patient centredness, critical reflection on practice, and quality improvement. The main outcome measure was successful treatment, defined as patients who were cured and those who had completed tuberculosis treatment. FINDINGS: The estimated effect of the intervention was an increase in successful treatment rates of 4.8% (95% confidence interval (CI): -5.5% to 15.2%) and in bacteriological cure rates of 10.4% (CI: -1.2% to 22%). A treatment effect of 10% was envisaged, based on the views of policy-makers on the minimum effect size for large-scale implementation. CONCLUSION: This is the first evidence from a randomized controlled trial on the effects of experiential, participatory training on TB outcomes in primary care facilities in a developing country. Such training did not appear to improve TB outcomes. However, the results were inconclusive and further studies are required.

Ear to the ground: listening to farm dwellers talk about the experience of becoming lay health workers.

Ranking ninth in the world for its contribution to the global burden of tuberculosis (TB), South Africa continues to battle the disease. Within the framework of the World Health Organisation's Directly Observed Treatment Short Course (DOTS) strategy, attempts have been made to utilize lay health workers (LHWs) as TB treatment supporters. Previous research has highlighted the benefits and difficulties associated with such an approach, but little attention has been paid to the perceptions of LHWs themselves. A randomised control trial of a LHW intervention in TB treatment in the farming areas of the Western Cape, South Africa has shown a 19% improvement in TB treatment outcomes. This paper describes the experiences of those LHWs drawing on data collected through focus groups with incumbents. The data has shown that once trained, respondents were engaged in a wide range of activities, well beyond simple health care. In the majority LHWs were women. Becoming LHWs opened up their worlds, creating opportunities they would otherwise not have had. But while doing so, it also added extra responsibilities and stresses, which were not easy to manage. Respondents sustained themselves through support from each other, the intervention team, their employers and contact with the public health system. The question this study raises is given the obvious need for LHWs, how can they be motivated to participate in primary health care in such a way that maximises their access to resources while minimising their experience of the role as burdensome?

Changing professional practice in tuberculosis care: an educational intervention.

AIM: This paper describes the development and implementation of an experiential, participatory in-service education programme focusing on patient-centeredness, problem-solving and critical reflection for primary providers delivering care to tuberculosis patients in South Africa. BACKGROUND: Tuberculosis is a major contributor to the disease burden in developing countries. In South Africa, approximately 90% of tuberculosis patients are managed by nurses at the primary level. Despite efforts to improve quality of care for these patients, many fail to complete their treatment as prescribed. Poor rapport between health care providers and patients with tuberculosis is a major reason for non-adherence to treatment. Methods of improving the quality of care delivery and communication between health care providers and patients with tuberculosis is therefore a priority. DISCUSSION: The paper outlines the stages of developing and implementing the education programme and reflects on this process. Data is drawn from an in-depth qualitative evaluation of the delivery and impacts of the intervention. The approach was acceptable to health care providers and adaptable to the needs of specific clinics. Participants evaluated the educational intervention positively, noting that it facilitated critical reflection on their work; encouraged problem-solving; and heightened their awareness of communication with patients and with colleagues. However, important structural barriers to practice change were identified, including conditions of service, relations with colleagues and support from management. CONCLUSIONS: Experiential, participatory in-service education can be implemented on a large scale in primary care settings. However, the process is resource intensive and the impacts of such education may be limited by barriers at other levels of the health system.

Dietary intake and barriers to dietary compliance in black type 2 diabetic patients attending primary health-care services.

OBJECTIVE: To determine the dietary intake, practices, knowledge and barriers to dietary compliance of black South African type 2 diabetic patients attending primary health-care services in urban and rural areas. DESIGN: A cross-sectional survey. Dietary intake was assessed by three 24-hour recalls, and knowledge and practices by means of a structured questionnaire (n = 133 men, 155 women). In-depth interviews were then conducted with 25 of the patients to explore their underlying beliefs and feelings with respect to their disease. Trained interviewers measured weight, height and blood pressure. A fasting venous blood sample was collected from each participant in order to evaluate glycaemic control. SETTING: An urban area (Sheshego) and rural areas near Pietersburg in the Northern Province of South Africa. SUBJECTS: The sample comprised 59 men and 75 women from urban areas and 74 men and 80 women from rural areas. All were over 40 years of age, diagnosed with type 2 diabetes for at least one year, and attended primary health-care services in the study area over a 3-month period in 1998. RESULTS: Reported dietary results indicate that mean energy intakes were low (< 70% of Recommended Dietary Allowance), 8086-8450 kJ day(-1) and 6967-7382 kJ day(-1) in men and women, respectively. Urban subjects had higher (P < 0.05) intakes of animal protein and lower ratios of polyunsaturated fat to saturated fat than rural subjects. The energy distribution of macronutrients was in line with the recommendations for a prudent diet, with fat intake less than 30%, saturated fat less than 10% and carbohydrate intake greater than 55% of total energy intake. In most respects, nutrient intakes resembled a traditional African diet, although fibre intake was low in terms of the recommended 3-6 g/1000 kJ. More than 90% of patients ate three meals a day, yet only 32-47% had a morning snack and 19-27% had a late evening snack. The majority of patients indicated that they followed a special diet, which had been given to them by a doctor or a nurse. Only 3.4-6.1% were treated by diet alone. Poor glycaemic control was found in both urban and rural participants, with more than half of subjects having fasting plasma glucose above 8 mmol l(-1) and more than 35% having plasma glycosylated haemoglobin level above 8.6%. High triglyceride levels were found in 24 to 25% of men and in 17 to 18% of women. Obesity (body mass index > or = 30 kg m(-2)) was prevalent in 15 to 16% of men compared with 35 to 47% of women; elevated blood pressure (> or = 160/95 mmHg) was least prevalent in rural women (25.9%) and most prevalent in urban men (42.4%). CONCLUSIONS: The majority of black, type 2 diabetic patients studied showed poor glycaemic control. Additionally, many had dyslipidaemia, were obese and/or had an elevated blood pressure. Quantitative and qualitative findings indicated that these patients frequently received incorrect and inappropriate dietary advice from health educators.