Details:

Alternative Title:
Am J Clin Nutr
Publisher's site:
http://dx.doi.org/10.1093/ajcn/nqac064
Personal Author:
Bougma, Karim ; Mei, Zuguo ; Palmieri, Mireya ; Onyango, Dickens ; Liu, Jianmeng ; ... More +
Bougma, Karim ; Mei, Zuguo ; Palmieri, Mireya ; Onyango, Dickens ; Liu, Jianmeng ; Mesarina, Karla ; Akelo, Victor ; Mwando, Rael ; Zhou, Yubao ; Meng, Ying ; Jefferds, Maria Elena Less -
Description:
Background:

An efficacy evaluation of the AutoAnthro system to measure child (0–59 months) anthropometry in the United States found 3D imaging performed as well as gold-standard manual measurements for biological plausibility and precision.

Objectives:

We conducted an effectiveness evaluation of the accuracy of the AutoAnthro system to measure 0- to 59-month-old children’s anthropometry in population-based surveys and surveillance systems in households in Guatemala and Kenya and in hospitals in China.

Methods:

The evaluation was done using health or nutrition surveillance system platforms among 600 children aged 0–59 months (Guatemala and Kenya) and 300 children aged 0–23 months (China). Field team anthropometrists and their assistants collected manual and scan anthropometric measurements, including length or height, midupper arm circumference (MUAC), and head circumference (HC; China only), from each child. An anthropometry expert and assistant later collected both manual and scan anthropometric measurements on the same child. The expert manual measurements were considered the standard compared to field team scans.

Results:

Overall, in Guatemala, Kenya, and China, for interrater accuracy, the average biases for length or height were −0.3 cm, −1.9 cm, and −6.2 cm, respectively; for MUAC were 0.9 cm, 1.2 cm, and −0.8 cm, respectively; and for HC was 2.4 cm in China. The inter-technical errors of measurement (inter-TEMs) for length or height were 2.8 cm, 3.4 cm, 5.5 cm, respectively; for MUAC were 1.1 cm, 1.5 cm, and 1.0 cm, respectively; and for HC was 2.8 cm in China. For intrarater precision, the absolute mean difference and intra-TEM (interrater, intramethod TEM) were 0.1 cm for all countries for all manual measurements. For scans, overall, absolute mean differences for length or height were 0.4–0.6 cm; for MUAC were 0.1–0.1 cm; and for HC was 0.4 cm. For the intra-TEM, length or height was 0.5 cm in Guatemala and China and 0.7 cm in Kenya, and other measurements were ≤0.3 cm.

Conclusions:

Understanding the factors that cause the many poor scan results and how to correct them will be needed prior to using this instrument in routine, population-based survey and surveillance systems.


Subject:
[+]
3D Imaging System Accuracy Anthropometry Arm Article Body Height Body Weight Child Child, Preschool Children China Guatemala Humans Imaging, Three-Dimensional Infant Infant, Newborn Kenya Precision Validation
Source:
Am J Clin Nutr. 116(1):97-110
Pubmed ID:
35285874
Pubmed Central ID:
PMC9576341
Document Type:
Journal Article
Funding:
CC999999/ImCDC/Intramural CDC HHSUnited States/
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:99e40fb532efe65df76cb5950560de14ffdb574e5ae9d993f2735ff7e403bc4e
Download URL:
https://stacks.cdc.gov/view/cdc/121824/cdc_121824_DS1.pdf
File Type:

Supporting Files

• 	nihms-1840444.nxml	xml
  	NIHMS1840444-supplement-Supplemental_Figures.pdf	pdf
  	NIHMS1840444-supplement-Supplemental_Tables.pdf	pdf

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