Many studies have compared these various tables and charts to the actual birthweight and found that Hadlock is generally closer although it increases the number of SGA compared to other tables. Most practitioners prefer to not miss an iugr and so err on the side of overcalling it. With that said how you intervene is another issue and nuance and understanding of fetal growth is key.
We have to use a chart consistently with the understanding that it’s imperfect
Absolutely. Second opinions are important. And that is why it's essential to compare. Many of these formulas and tables will show that they agree with each other. Within reasons.
Many studies have compared these various tables and charts to the actual birthweight and found that Hadlock is generally closer although it increases the number of SGA compared to other tables. Most practitioners prefer to not miss an iugr and so err on the side of overcalling it. With that said how you intervene is another issue and nuance and understanding of fetal growth is key.
We have to use a chart consistently with the understanding that it’s imperfect
Absolutely. Second opinions are important. And that is why it's essential to compare. Many of these formulas and tables will show that they agree with each other. Within reasons.