Midupper arm circumference and weight-for-length z scores have different associations with body composition: evidence from a cohort of Ethiopian infants.
Carlos S Grijalva-EternodJonathan C K WellsTsinuel GirmaPernille KæstelBitiya AdmassuHenrik FriisGregers S AndersenPublished in: The American journal of clinical nutrition (2015)
The MUAC and WLZ have different associations with body composition, and length influences these associations differently. Our results suggest that the WLZ is a good marker of tissue masses independent of length. The MUAC acts more as a composite index of poor growth indexing jointly tissue masses and length. This trial was registered at www.controlled-trials.com as ISRCTN46718296.