Can't give you any info in relation to research stats but I can tell you that DS was on 80Kcal for the majority of his stay. Had good steady weekly weight gains which was very important in his case. At discharge he weighed 3.5kgs.

The only problem I had was once he was home and on full bfeeds, he gained very little weight over a 6 week period and I'm sure he was craving 80Kcal