The problem with the study is that you're not looking at it. That's a publication release notice. It would be like me watching a trailer for a move, then complaining that there is no plot." Simply being labeled as too fat has a measurable effect almost a decade later. We nearly fell off our chairs when we discovered this," said A. Janet Tomiyama, an assistant professor of psychology in the UCLA College of Letters and Science and the study's senior author. "Even after we statistically removed the effects of their actual weight, their income, their race and when they reached puberty, the effect remained.
"That means it's not just that heavier girls are called too fat and are still heavy years later; being labeled as too fat is creating an additional likelihood of being obese."
Quoted from report.
They don't tell you how many. I imagine very few didn't already have a weight problem. That's the problem with the study. The statistics are too vague to back the claim of the report. Of coarse one has to keep in mind that this is also a factor...
That gives you a better idea as to how many of them probably already had weight problems.
It sounds like just an insult, but it seems that you quite literally wouldn't know an academic study if you were looking for it, which is terribly sad.