and at baseline or at--in looking at the ones

从基线上来看
that signed up

或将那些参加了项目
versus the ones that didn't

和没参加项目的地区进行对比
there was no significant difference on any of the demographic groups.

二者的人口学变量没有显著的差异
So it wasn't as though it was only the wealthy districts

所以并非只有富裕的地区
that signed up or only the poor districts that signed up,

参加了或贫穷的地区参加了
it was really a mix.

情况要更加复杂
What I was able to do--and let me just walk you through this--is

我能够做的是让我领你们看看吧
I was able to look at the year

我能做的是看看
before the school wellness policies went into effect,

在学校健康政策生效的前一年
how many unhealthy a la carte snacks were being sold,

零食的售卖菜单上有多少零食是不健康的
this one's for elementary schools,

这是一所小学的菜单