Twins usually follow
normal growth curves (based on singletons) until 28 - 32 weeks, then they often demonstrate more sluggish growth.
Moreover, if diarrhoea occurs frequently, there may be too little time to «catch up» on growth between episodes, the result being a flattening of
the normal growth curve.
Not exact matches
However, research suggests that it is
normal for babies to have shifts up or down on their
growth curves within the first six months, and even up to two years of age.
This may be
normal, because breastfed babies do not grow along the same
growth curves as formula fed babies, and it may appear that they grow too slowly, when in fact, it is the formula fed baby who is growing too quickly.
Traditional
growth charts show a child's height and weight as points on
curves that are based on data from hundreds of thousands of other children, and indicate
normal, near -
normal and problematic development.
Helama et al. (2004a, 2005) have shown that such a major increase in population density could affect the empirically determined
growth curves used in
normal RCS standardization.