Sanjeevi Namrata, Lipsky Leah M, Nansel Tonja R, Haynie Denise, Liu Aiyi, Simons-Morton Bruce
Social and Behavioral Sciences Branch, Eunice Kennedy Shriver2511National Institute of Child Health and Human Development, Bethesda, MD, USA.
Biostatistics & Bioinformatics Branch, Eunice Kennedy Shriver2511National Institute of Child Health and Human Development, Bethesda, MD, USA.
Am J Health Promot. 2020 Nov;34(8):857-866. doi: 10.1177/0890117120902346. Epub 2020 Feb 10.
To investigate relationships of farm-to-school, school meal, and competitive food state laws with eating behaviors and weight status and to examine interaction between different types of state laws.
Observational cohort study.
US adolescents.
The NEXT study is a nationally representative sample of adolescents assessed annually for 7 years. Data (N = 2751) from students attending public schools from the first (W1) and third (W3) assessment waves (2010 and 2012), occurring during grades 10 and 12, respectively, of the NEXT study were included.
Eating behaviors and weight status of adolescents were linked with Classification of Laws Associated with School Students scoring for state laws.
Regression analyses examined associations of laws with intake and weight status, accounting for complex survey design and school-level clustering.
Adolescents in states with strong farm-to-school laws had greater W1 whole fruit, lower soda, and snack intakes versus those in states with no laws. Strong school meal laws were associated with lower W1 soda intake. Adolescents in states with strong competitive food laws had lower soda intake and overweight/obesity odds than those in states with no laws in W3. Strong farm-to-school laws were inversely associated with W3 overweight/obesity odds only in states with strong competitive food laws.
Stronger laws governing school nutrition were related to healthier eating behaviors and optimal weight status in this nationally representative sample of adolescents. Further, farm-to-school laws may be more effective in reducing obesity when combined with strong competitive food legislation.
研究从农场到学校、学校膳食和竞争性食品相关州法律与饮食行为及体重状况之间的关系，并检验不同类型州法律之间的相互作用。
观察性队列研究。
美国青少年。
“下一代”研究是一个具有全国代表性的青少年样本，连续7年每年进行评估。纳入了在“下一代”研究的第10和12年级分别进行的第一次（W1）和第三次（W3）评估浪潮（2010年和2012年）期间就读于公立学校的学生的数据（N = 2751）。
青少年的饮食行为和体重状况与根据州法律对与在校学生相关法律的分类得分相关联。
回归分析检验了法律与摄入量和体重状况之间的关联，同时考虑了复杂的调查设计和学校层面的聚类情况。
与没有相关法律的州相比，拥有强有力的从农场到学校法律的州的青少年在W1时全水果摄入量更高，汽水和零食摄入量更低。强有力的学校膳食法律与W1时较低的汽水摄入量相关。与没有相关法律的州相比，拥有强有力的竞争性食品法律的州的青少年在W3时汽水摄入量更低，超重/肥胖几率也更低。只有在拥有强有力的竞争性食品法律的州，强有力的从农场到学校法律才与W3时的超重/肥胖几率呈负相关。
在这个具有全国代表性的青少年样本中，更强有力的学校营养相关法律与更健康的饮食行为和最佳体重状况相关。此外，当与强有力的竞争性食品立法相结合时，从农场到学校法律在减少肥胖方面可能更有效。
