Recovery and relapse from severe acute malnutrition after treatment: a prospective, observational cohort trial in Pakistan.

OBJECTIVE: Millions of children suffer from severe acute malnutrition (SAM) in low- and middle- income countries. Much is known about the effectiveness of community treatment programmes (CMAM) but little is known about post-discharge outcomes after successful treatment. The present study aimed to evaluate post-discharge outcomes of children cured of SAM. DESIGN: Prospective, observational cohort study. Children with SAM who were discharged as cured were followed monthly for 6 months or until they experienced relapse to SAM. 'Cure' was defined as a child achieving a mid-upper arm circumference (MUAC) of ≥115 mm with ≥15 % weight gain after loss of oedema. Relapse was defined as a child with MUAC<115 mm and/or oedema at any monthly visit. SETTING: Save the Children CMAM programme in Swabi, Pakistan, from January 2012 to December 2014. SUBJECTS: Children aged 6-59 months (n 117) discharged as cured from the CMAM programme were eligible for the study and followed for 6 months. RESULTS: One hundred children (92·6 %) remained free of SAM, eight (7·4 %) relapsed to SAM, nine (8·3 %) were lost to follow-up and none died. Most relapses occurred within 3 months of discharge (mean time to relapse 73·4 (sd 36·2) d). At enrolment, 90 % had moderate acute malnutrition (MAM) and 10 % were not malnourished. By the end of 6 months, 35 % persisted with MAM and the remaining were not malnourished. CONCLUSIONS: In rural Pakistan, fewer than 10 % of children cured of SAM relapsed. The first 3 months is the most vulnerable time.