Objective: The present study was performed to describe the operational implications of using mid-upper arm circumference (MUAC) as a single admission criterion for treatment of severe acute malnutrition in South Sudan. Design: We performed a retrospective analysis of routine programme data of children with severe acute malnutrition aged 6-59 months admitted to a therapeutic feeding programme using weight-for-height Z-score (WHZ) and/or MUAC. To understand the implications of using MUAC as a single admission criterion, we compared patient characteristics and treatment outcomes for children admitted with MUAC < 115 mm (irrespective of WHZ) v. children admitted with WHZ < −3 and MUAC ≥ 115 mm. Results: Of 2205 children included for analysis, 719 (32·6 %) were admitted to the programme with MUAC < 115 mm and 1486 (67·4 %) with WHZ < −3 and MUAC ≥ 115 mm. Children who would have been admitted using a single MUAC < 115 mm criterion were more severely malnourished and more likely to be female and younger. Compared with children admitted with WHZ < −3 and MUAC ≥ 115 mm, children who would have been admitted using MUAC < 115 mm were less likely to recover (54 % v. 69 %) and had higher risk of death (4 % v. 1 %), but responded to treatment with greater weight and MUAC gains. MUAC < 115 mm would have failed to identify 33 % of deaths, while 98 % were identified by WHZ < −3 alone and 100 % by MUAC < 130 mm. Conclusions: The study shows that MUAC < 115 mm identified more severely malnourished children with a higher risk of mortality but failed to identify a third of the children who died. Admission criteria for therapeutic feeding should be adapted to the programmatic context with consideration for both operational and public health implications.
Keywords
Child malnutrition Mid-upper arm circumferenceWeight-for-height Z-score Admission criteria Community-based management of acute malnutritionAcute malnutrition represents a major cause of childhood morbidity and mortality worldwide. The number of children under the age of 5 years with severe acute malnutrition (SAM) at any time is currently estimated from prevalence data to be nearly 19 million, with the burden or number of incident cases occurring each year presumably higher (1) . SAM contributes to over a million child deaths annually, as children with SAM are estimated to have an approximately ninefold increased risk of death compared with well-nourished children (2,3) . Traditionally, treatment for SAM was conducted exclusively in in-patient settings, an approach that was both costly and limited access to, and impact of, such programmes.In 2007, a new model for the community-based management of acute malnutrition (CMAM) was endorsed by the WHO, UNICEF, World Food Programme and the UN System Standing Committee on Nutrition, in which children with uncomplicated cases of SAM and appetite could be treated on an out-patient basis with the provision of ready-to-use therapeutic foods and weekly or biweekly follow-up (3) . Increasing evidence and operational experience ha...