ion.</p>
<p>The package is modeled after the original <a href="https://www.who.int/toolkits/child-growth-standards/software" class="external-link">R macros</a> provided by WHO. In addition to z-scores, the package adds more accurate calculations of confidence intervals and standard errors around the prevalence estimates, taking into account complex sample designs, whenever is the case by using the <a href="https://cran.r-project.org/package=survey" class="external-link">survey package</a>.</p>
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