Physical activity calorie expenditure (PACE) labels in worksite cafeterias: effects on physical activity.

BACKGROUND: Regular physical activity is an important component of healthy living and wellbeing. Current guidelines recommend that adults participate in at least 150 min of moderate or vigorous-intensity physical activity weekly. In spite of the benefits, just over half of U.S. adults meet these recommendations. Calorie-only food labels at points of food purchase have had limited success in motivating people to change eating behaviors and increase physical activity. One new point of purchase approach to promote healthy behaviors is the addition of food labels that display the physical activity requirement needed to burn the calories in a food item (e.g. walk 15 min). METHODS: The Physical Activity Calorie Expenditure (PACE) Study compared activity-based calorie-expenditure food labels with calorie-only labels at three Blue Cross and Blue Shield of North Carolina worksite cafeterias. After 1 year of baseline data collection, one cafeteria had food items labeled with PACE labels, two others had calorie-only food labels. Cohort participants were asked to wear an accelerometer and complete a self-report activity questionnaire on two occasions during the baseline year and twice during the intervention year. RESULTS: A total of 366 study participants were included in the analysis. In the PACE-label group, self-reported physical activity increased by 13-26% compared to the calorie-only label group. Moderate-to-vigorous physical activity (MVPA) increased by 24 min per week in the PACE-label group compared to the calorie-label group (p = 0.06). Changes in accelerometer measured steps, sedentary time, and MVPA had modest increases. Change ranged from 1 to 12% with effect size values from 0.08 to 0.15. Baseline physical activity level significantly moderated the intervention effects for all physical activity outcomes. Participants in both label groups starting in the lowest tertile of activity saw the largest increase in their physical activity. CONCLUSION: Results suggest small positive effects for the PACE labels on self-reported and objective physical activity measures. Minutes of weekly MVPA, strength training, and exercise activities showed modest increases. These results suggest that calorie-expenditure food labels may result in some limited increases in physical activity.

Evaluating community-based medical education programmes in Africa: A workshop report.

BACKGROUND: The Medical Education Partnership Initiative (MEPI) supports medical schools in Africa to increase the capacity and quality of medical education, improve retention of graduates, and promote regionally relevant research. Many MEPI programmes include elements of community-based education (CBE) such as: community placements; clinical rotations in underserved locations, community medicine, or primary health; situational analyses; or student-led research. METHODS: CapacityPlus and the MEPI Coordinating Center conducted a workshop to share good practices for CBE evaluation, identify approaches that can be used for CBE evaluation in the African context, and strengthen a network of CBE collaborators. Expected outcomes of the workshop included draft evaluation plans for each school and plans for continued collaboration among participants. The workshop focused on approaches and resources for evaluation, guiding exploration of programme evaluation including data collection, sampling, analysis, and reporting. Participants developed logic models capturing inputs, activities, outputs, and expected outcomes of their programmes, and used these models to inform development of evaluation plans. This report describes key insights from the workshop, and highlights plans for CBE evaluation among the MEPI institutions. RESULTS: Each school left the workshop with a draft evaluation plan. Participants agreed to maintain communication and identified concrete areas for collaboration moving forward. Since the workshop's conclusion, nine schools have agreed on next steps for the evaluation process and will begin implementation of their plans. CONCLUSION: This workshop clearly demonstrated the widespread interest in improving CBE evaluation efforts and a need to develop, implement, and disseminate rigorous approaches and tools relevant to the African context.

Community-based education programs in Africa: faculty experience within the Medical Education Partnership Initiative (MEPI) network.

PURPOSE: This paper examines the various models, challenges, and evaluative efforts of community-based education (CBE) programs at Medical Education Partnership Initiative (MEPI) schools and makes recommendations to strengthen those programs in the African context. METHODS: Data were gathered from 12 MEPI schools through self-completion of a standardized questionnaire on goals, activities, challenges, and evaluation of CBE programs over the study period, from November to December 2013. Data were analyzed manually through the collation of inputs from the schools included in the survey. RESULTS: CBE programs are a major component of the curricula of the surveyed schools. CBE experiences are used in sensitizing students to community health problems, attracting them to rural primary health care practice, and preparing them to perform effectively within health systems. All schools reported a number of challenges in meeting the demands of increased student enrollment. Planned strategies used to tackle these challenges include motivating faculty, deploying students across expanded centers, and adopting innovations. In most cases, evaluation of CBE was limited to assessment of student performance and program processes. CONCLUSIONS: Although the CBE programs have similar goals, their strategies for achieving these goals vary. To identify approaches that successfully address the challenges, particularly with increasing enrollment, medical schools need to develop structured models and tools for evaluating the processes, outcomes, and impacts of CBE programs. Such efforts should be accompanied by training faculty and embracing technology, improving curricula, and using global/regional networking opportunities.

Time to treatment and patient outcomes among TB suspects screened by a single point-of-care xpert MTB/RIF at a primary care clinic in Johannesburg, South Africa.

INTRODUCTION: In December 2010, the World Health Organization recommended a single Xpert MTB/RIF assay as the initial diagnostic in people suspected of HIV-associated or drug resistant tuberculosis. Few data are available on the impact of this recommendation on patient outcomes. We describe the diagnostic follow-up, clinical characteristics and outcomes of a cohort of tuberculosis suspects screened using a single point-of-care Xpert. METHODS: Consecutive tuberculosis suspects at a primary care clinic in Johannesburg, South Africa were assessed for tuberculosis using point-of-care Xpert. Sputum smear microscopy and liquid culture were performed as reference standards. Xpert-negatives were evaluated clinically, and further assessed at the discretion of clinicians. Participants were followed for six months. RESULTS: From July-September 2011, 641 tuberculosis suspects were enrolled, of whom 69% were HIV-infected. Eight percent were positive by a single Xpert. Among 116 individuals diagnosed with TB, 66 (57%) were Xpert negative, of which 44 (67%) were empirical or radiological diagnoses and 22 (33%) were Xpert negative/culture-positive. The median time to tuberculosis treatment was 0 days (IQR: 0-0) for Xpert positives, 14 days (IQR: 5-35) for those diagnosed empirically, 14 days (IQR: 7-29) for radiological diagnoses, and 144 days (IQR: 28-180) for culture positives. Xpert negative tuberculosis cases were clinically similar to Xpert positives, including HIV status and CD4 count, and had similar treatment outcomes including mortality and time to antiretroviral treatment initiation. CONCLUSIONS: In a high HIV-burden setting, a single Xpert identified less than half of those started on tuberculosis treatment, highlighting the complexity of TB diagnosis even in the Xpert era. Xpert at point-of-care resulted in same day treatment initiation in Xpert-positives, but had no impact on tuberculosis treatment outcomes or mortality.