These are the results of longitudinal models
这是纵向研究的结果
and this is gonna be series of models that I will show you
这是一系列模型得出的结果 我一会给大家展示
And this first onefirst I'm gonna show you
我要给大家看的第一个是
I'm just gonna show you the boys right now
我现在只展示男孩
and this herethis model here is predicting
BMI z-score 这里的这个模型
when the boys were 12 to 15 years of age
预示出了12到15岁男孩的BMI标准分数
And what it shows is even
这说明了
after adjusting for socio-economic status, birth weight
即使调整了社会经济地位 出生重量
race, and age, that again
种族和年龄这些因素之后
there is a significant association
睡眠时间和今后的BMI标准分数之间
between sleep duration and BMI z-score at the subsequent age
也存在显着联系
So again
结果再次显示
sleep duration at ages 8 to 11
8到11岁孩子的睡眠时间
had significant negative effect on BMI at later age
对今后的BMI会产生显着的负面影响
And then when we looked atin this model
在这个模型中
sleep duration again at ages 8 to 11
8到11岁的睡眠时间
but predicting BMI a little later in childhood
会对童年后期的BMI产生影响
actually in the course of adulthood
甚至对16到19岁即将成年的男孩
when the boys were 16 to 19
产生影响
we see a slightlyslightly attenuated but still a significant association
我们看到睡眠时间每减少1个小时
with each hour increase in sleep duration
BMI标准分数就会提高0.3
predicting an increase in BMI by 0.3, BMI z-score of 0.3
虽然联系有所减弱 但仍然很显着
quite a significant effect
所以影响还是很大的