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Table 2 Factor loadings of individual anthropometric quality indicators in principal component analyses for 5,210 municipalities [HAZ/WHZ]. Brazilian National food and nutrition surveillance system (SISVAN), 2019–2021

From: Composite anthropometric data quality index for children under the age of 5 on the Brazilian National Food and Nutrition Surveillance System, 2019–2021

Data Quality Indicator

HAZ index factor loadings

WHZ index factor loadings

Target population coverage

0.16

0.06

Length/height dissimilarity index

0.34

0.03

Age dissimilarity index

0.60

-

Biologically implausible HAZ values

0.81

-

HAZ standard deviation

0.87

-

Weight dissimilarity index

-

0.77

Biologically implausible WHZ values

-

0.83

WHZ standard deviation

-

0.90