Tripp K.,Centers for Disease Control and Prevention |
MacKeith N.,University College London |
Woodruff B.A.,Centers for Disease Control and Prevention |
Talley L.,Centers for Disease Control and Prevention |
And 5 more authors.
Public Health Nutrition | Year: 2010
Objective: To evaluate the acceptability of iron and iron-alloy cooking pots prior to an intervention trial and to investigate factors affecting retention and use.Design Pre-trial research was conducted on five types of iron and iron-alloy pots using focus group discussions and a laboratory evaluation of Fe transfer during cooking was undertaken. Usage and retention during the subsequent intervention trial were investigated using focus group discussions and market monitoring.Setting Three refugee camps in western Tanzania.Subjects Refugee health workers were selected for pre-trial research. Mothers of children aged 6-59 months participated in the investigation of retention and use.Results: Pre-trial research indicated that the stainless steel pot would be the only acceptable type for use in this population due to excessive rusting and/or the high weight of other types. Cooking three typical refugee dishes in stainless steel pots led to an increase in Fe content of 3.2 to 17.1 mg/100 g food (P < 0.001). During the trial, the acceptability of the stainless steel pots was lower than expected owing to difficulties with using, cleaning and their utility for other purposes. Households also continued to use their pre-existing pots, and stainless steel pots were sold to increase household income.Conclusions: Pre-trial research led to the selection of a stainless steel pot that met basic acceptability criteria. The relatively low usage reported during the trial highlights the limitations of using high-value iron-alloy cooking pots as an intervention in populations where poverty and the availability of other pots may lead to selling. Source
Talley L.,National Center for Environmental Health |
Woodruff B.A.,Emory University |
Seal A.,University College London |
Tripp K.,Centers for Disease Control and Prevention |
And 4 more authors.
Public Health Nutrition | Year: 2010
Objective: To evaluate the effectiveness of stainless steel (Fe alloy) cooking pots in reducing Fe-deficiency anaemia in food aid-dependent populations.Design Repeated cross-sectional surveys. Between December 2001 and January 2003, three surveys among children aged 6-59 months and their mothers were conducted in 110 households randomly selected from each camp. The primary outcomes were changes in Hb concentration and Fe status.Setting Two long-term refugee camps in western Tanzania.Subjects Children (6-59 months) and their mothers were surveyed at 0, 6 and 12 months post-intervention. Stainless steel pots were distributed to all households in Nduta camp (intervention); households in Mtendeli camp (control) continued to cook with aluminium or clay pots.Results: Among children, there was no change in Hb concentration at 1 year; however, Fe status was lower in the intervention camp than the control camp (serum transferrin receptor (sTfR) concentration: 6.8 v. 5.9 μg/ml; P < 0.001). There was no change in Hb concentration among non-pregnant mothers at 1 year. Subjects in the intervention camp had lower Fe status than those in the control camp (sTfR concentration: 5.8 v. 4.7 μg/ml; P = 0.003).Conclusions: Distribution of stainless steel pots did not increase Hb concentration or improve Fe status in children or their mothers. The use of stainless steel prevents rusting but may not provide sufficient amounts of Fe and strong educational campaigns may be required to maximize use. The distribution of stainless steel pots in refugee contexts is not recommended as a strategy to control Fe deficiency. Source
Hoffman S.J.,McMaster University |
Hoffman S.J.,University of Toronto |
Hoffman S.J.,Harvard University |
Guindon G.E.,University of Waterloo |
And 6 more authors.
Malaria Journal | Year: 2011
Background: Research evidence is not always being disseminated to healthcare providers who need it to inform their clinical practice. This can result in the provision of ineffective services and an inefficient use of resources, the implications of which might be felt particularly acutely in low- and middle-income countries. Malaria prevention is a particularly compelling domain to study evidence/practice gaps given the proven efficacy, cost-effectiveness and disappointing utilization of insecticide-treated nets (ITNs). Methods. This study compares what is known about ITNs to the related knowledge and practices of healthcare providers in four low- and middle-income countries. A new questionnaire was developed, pilot tested, translated and administered to 497 healthcare providers in Ghana (140), Laos (136), Senegal (100) and Tanzania (121). Ten questions tested participants' knowledge and clinical practice related to malaria prevention. Additional questions addressed their individual characteristics, working context and research-related activities. Ordinal logistic regressions with knowledge and practices as the dependent variable were conducted in addition to descriptive statistics. Results: The survey achieved a 75% response rate (372/497) across Ghana (107/140), Laos (136/136), Senegal (51/100) and Tanzania (78/121). Few participating healthcare providers correctly answered all five knowledge questions about ITNs (13%) or self-reported performing all five clinical practices according to established evidence (2%). Statistically significant factors associated with higher knowledge within each country included: 1) training in acquiring systematic reviews through the Cochrane Library (OR 2.48, 95% CI 1.30-4.73); and 2) ability to read and write English well or very well (OR 1.69, 95% CI 1.05-2.70). Statistically significant factors associated with better clinical practices within each country include: 1) reading scientific journals from their own country (OR 1.67, 95% CI 1.10-2.54); 2) working with researchers to improve their clinical practice or quality of working life (OR 1.44, 95% CI 1.04-1.98); 3) training on malaria prevention since their last degree (OR 1.68, 95% CI 1.17-2.39); and 4) easy access to the internet (OR 1.52, 95% CI 1.08-2.14). Conclusions: Improving healthcare providers' knowledge and practices is an untapped opportunity for expanding ITN utilization and preventing malaria. This study points to several strategies that may help bridge the gap between what is known from research evidence and the knowledge and practices of healthcare providers. Training on acquiring systematic reviews and facilitating internet access may be particularly helpful. © 2011 Hoffman et al; licensee BioMed Central Ltd. Source
Cameron D.,McMaster University |
Lavis J.N.,McMaster University |
Lavis J.N.,Hamilton Company |
Guindon G.E.,McMaster University |
And 4 more authors.
Health Research Policy and Systems | Year: 2010
Background: A questionnaire could assist researchers, policymakers, and healthcare providers to describe and monitor changes in efforts to bridge the gaps among research, policy and practice. No questionnaire focused on researchers' engagement in bridging activities related to high-priority topics (or the potential correlates of their engagement) has been developed and tested in a range of low- and middle-income countries (LMICs).Methods: Country teams from ten LMICs (China, Ghana, India, Iran, Kazakhstan, Laos, Mexico, Pakistan, Senegal, and Tanzania) participated in the development and testing of a questionnaire. To assess reliability we calculated the internal consistency of items within each of the ten conceptual domains related to bridging activities (specifically Cronbach's alpha). To assess face and content validity we convened several teleconferences and a workshop. To assess construct validity we calculated the correlation between scales and counts (i.e., criterion measures) for the three countries that employed both and we calculated the correlation between different but theoretically related (i.e., convergent) measures for all countries.Results: Internal consistency (Cronbach's alpha) for sets of related items was very high, ranging from 0.89 (0.86-0.91) to 0.96 (0.95-0.97), suggesting some item redundancy. Both face and content validity were determined to be high. Assessments of construct validity using criterion-related measures showed statistically significant associations for related measures (with gammas ranging from 0.36 to 0.73). Assessments using convergent measures also showed significant associations (with gammas ranging from 0.30 to 0.50).Conclusions: While no direct comparison can be made to a comparable questionnaire, our findings do suggest a number of strengths of the questionnaire but also the need to reduce item redundancy and to test its capacity to monitor changes over time. © 2010 Cameron et al; licensee BioMed Central Ltd. Source
Samuel Chipungahelo M.,Tanzania Food and Nutrition Center
Library Review | Year: 2015
Purpose-The purpose of this paper is to examine knowledge sharing on traditional vegetables for supporting food security among farmers and other communities in Kilosa district, Tanzania. Design/methodology/approach-A case study design was employed. Semi-structured questionnaires with both open-and closed-ended questions were used to collect quantitative data in three wards of Kilosa District in Tanzania. Interviews were used to collect qualitative data from three heads of farmer groups, and direct observation was used to validate findings obtained from questionnaires. Findings-The results showed that farmers used a socialisation approach to share indigenous knowledge about traditional vegetables on production, consumption and preservation. Research limitations/implications-The study necessitates a need to conduct regular studies on sharing knowledge of traditional vegetables among different communities for supporting food security. Practical implications-The paper provides a framework for agricultural development planners on how to improve the management of indigenous knowledge on traditional vegetables with scientific knowledge in local communities for improving food security in Tanzania. Social implications-The paper has an implication for improving knowledge-sharing strategies on traditional vegetables in supporting food security in Tanzania, and other parts of Africa and developed countries. There is a need for knowledge intermediaries to develop knowledge database on production, consumption and preservation of traditional vegetable to increase the dissemination of this knowledge and, hence, improve nutrition and food security. Originality/value-The paper provides appropriate knowledge-sharing strategies which are needed to improve sharing of indigenous knowledge about traditional vegetables in Tanzania and other developed and developing countries. © Emerald Group Publishing Limited. Source