How accurate are the revised charts for tracking growth of exclusively breastfed infants?
The revised charts are derived from a mix of infants who were exclusively breast fed and formula fed. Exclusively breast fed babies may grow at a slightly lower rate than the reference, particularly in the first 4-6 months of age. However if the charts are used as a reference (and not as a standard that must be met) the difference is not important (approximating a Z score of –0.5) (1).
