Point-of-use water treatment improves recovery rates among children with severe acute malnutrition in Pakistan: results from a site-randomized trial.

OBJECTIVE: To evaluate effectiveness of point-of-use water treatment in improving treatment of children affected by severe acute malnutrition (SAM). DESIGN: Programme sites were randomized to one of four intervention arms: (i) standard SAM treatment; (ii) SAM treatment plus flocculent/disinfectant water treatment; (iii) SAM treatment plus chlorine disinfectant; or (iv) SAM treatment plus ceramic water filter. Outcome measures were calculated based on participant status upon exit or after 120d of enrolment, whichever came first. Child anthropometric data were collected during weekly monitoring at programme sites. Child caregivers were interviewed at enrolment and exit. Use of water treatment products was assessed in a home visit 4-6 weeks after enrolment. SETTING: Dadu District, Sindh Province, Pakistan. SUBJECTS: Children (n 901) aged 6-59 months with SAM and no medical complications. RESULTS: Recovery rates were 16·7-22·2 % higher among children receiving water treatment compared with the control group. The adjusted odds of recovery were approximately twice as high for those receiving water treatment compared with controls. Mean length of stay until recovery was 73 (sd 24·6) d and mean rate of weight gain was 4·7 (sd 3·0) g/kg per d. Differences in recovery rate, length of stay and rate of weight gain between intervention groups were not statistically significant. CONCLUSIONS: Incorporating point-of-use water treatment into outpatient treatment programmes for children with SAM increased nutritional recovery rates. No significant differences in recovery rates were observed between the different intervention groups, indicating that different water treatment approaches were equally effective in improving recovery.

Costs and cost-effectiveness of three point-of-use water treatment technologies added to community-based treatment of severe acute malnutrition in Sindh Province, Pakistan.

BACKGROUND: Severe acute malnutrition (SAM) is a major global public health concern. Despite the cost-effectiveness of treatment, ministries of health are often unable to commit the required funds which limits service coverage. OBJECTIVE: A randomised controlled trial was conducted in Sindh Province, Pakistan, to assess whether adding a point of use water treatment to the treatment of SAM without complications improved its cost-effectiveness. Three treatment strategies - chlorine disinfection (Aquatabs); flocculent disinfection (Procter and Gamble Purifier of Water [P&G PoW]) and Ceramic Filters - were compared to a standard SAM treatment protocol. METHODS: An institutional perspective was adopted for costing, considering the direct and indirect costs incurred by the provider. Combining the cost of SAM treatment and water treatment, an average cost per child was calculated for the combined interventions for each arm. The costs of water treatment alone and the incremental cost-effectiveness of each water treatment intervention were also assessed. RESULTS: The incremental cost-effectiveness ratio for Aquatabs was 24 US dollars (USD), making it the most cost-effective strategy. The P&G PoW arm was the next least expensive strategy, costing an additional 149 USD per additional child recovered, though it was also the least effective of the three intervention strategies. The Ceramic Filters intervention was the most costly strategy and achieved a recovery rate lower than the Aquatabs arm and marginally higher than the P&G PoW arm. CONCLUSIONS: This study found that the addition of a chlorine or flocculent disinfection point-of-use drinking water treatment intervention to the treatment of SAM without complications reduced the cost per child recovered compared to standard SAM treatment. To inform the feasibility of future implementation, further research is required to understand the costs of government implementation and the associated costs to the community and beneficiary household of receiving such an intervention in comparison with the existing SAM treatment protocol.

Prevention-intervention strategies to reduce exposure to e-waste.

As one of the largest waste streams, electronic waste (e-waste) production continues to grow in response to global demand for consumer electronics. This waste is often shipped to developing countries where it is disassembled and recycled. In many cases, e-waste recycling activities are conducted in informal settings with very few controls or protections in place for workers. These activities involve exposure to hazardous substances such as cadmium, lead, and brominated flame retardants and are frequently performed by women and children. Although recycling practices and exposures vary by scale and geographic region, we present case studies of e-waste recycling scenarios and intervention approaches to reduce or prevent exposures to the hazardous substances in e-waste that may be broadly applicable to diverse situations. Drawing on parallels identified in these cases, we discuss the future prevention and intervention strategies that recognize the difficult economic realities of informal e-waste recycling.

Community-based efforts in health promotion in indigenous villages on the Thailand-Myanmar border.

This case study of mainly Karen and Mon communities in Kanchanaburi Province, western Thailand, offers insight into the challenges that these rural villages face with regard to food security and environmental health issues. As non-Thai communities, these villages receive little support from the Thai government, and are often vulnerable in terms of access to food markets, infrastructure, and education and livelihood opportunities. This discussion further considers the involvement of Pattanarak Foundation, a Thai NGO, in health promotion and economic development in these villages as an example of a community partnership at the grassroots level. Examining Pattanarak's efforts to build skills in household vegetable gardening and livestock-raising, raise awareness about child nutrition issues, and improve community sanitation illustrates the value of a participatory process, and also demonstrates some of the challenges associated with on-the-ground health promotion in disadvantaged rural communities. Applying a community-based participatory research (CBPR) framework to pursue partnerships between communities, NGOs, and researchers may offer an avenue for effective interventions to improve health in marginalized communities.