This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.

Abdel-Rahman MUAC (CDC)

Upper arm circumference 2 months–18 years

About this calculator

Z-score and percentile of mid-upper arm circumference according to Abdel-Rahman 2017 based on NHANES data.

In preterm infants, if a gestational age is given, age is corrected up to month 24 of life for the missing weeks up to 40+0. The z-score (SDS) describes the deviation from the median in standard deviations; the percentile the proportion of the reference population with a smaller value.

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Reference and license

Abdel-Rahman 2017 – 2–222 months (2 months–18.5 years).
Abdel-Rahman SM, Bi C, Thaete K. Construction of lambda, mu, sigma values for determining mid-upper arm circumference z-scores in U.S. children aged 2 months through 18 years. Nutr Clin Pract. 2017;32(1):68–76. License: LMS parameters from the R package peditools (jhchou/peditools, Chou JH et al. JMIR 2020;22:e16204; the MIT licence covers the software, rights to the reference data remain with the original publication). Source
LMS parameters from the peditools collection; the tables range from 2 to 222 months (about 18.5 years), somewhat beyond the 18 years named in the title.

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Note

Calculation aid for healthcare professionals. Percentiles and z-scores describe the position of a measured value in the reference population; clinical assessment remains with the treating physician.

Review date of the German original: 2026-11-05 · Methodology

Frequently asked questions

Abdel-Rahman MUAC (CDC): What does this calculator compute?

Z-score and percentile of mid-upper arm circumference according to Abdel-Rahman 2017 based on NHANES data.

Abdel-Rahman MUAC (CDC): Which sources is this calculator based on?

Abdel-Rahman SM, Bi C, Thaete K. Construction of lambda, mu, sigma values for determining mid-upper arm circumference z-scores in U.S. children aged 2 months through 18 years. Nutr Clin Pract. 2017;32(1):68–76.