We are happy to announce the publication of the INTERGROWTH-21st and WHO Child Growth standards R packages as part of the Guidance for International Growth Standards (gigs) at the London School of Hygiene & Tropical Medicine. 

This package for researchers and policymakers will facilitate the appropriate use of growth standards for the determination and assessment of growth outcomes at the population level (e.g. stunting, wasting, underweight and trajectories over time) among vulnerable infants. For clinicians, gigs also provides support in choosing which standards to use when assessing growth of individual infants. 

The package will also allow you to:

• find functions for converting from anthropometric measures (e.g. weight or length) to z-scores and centiles, and the inverse, and
• find functions for classifying newborn and infant growth according to literature-based cut-offs.