进食速度快与高中生 BMI 增加有关。
Fast Eating Is Associated with Increased BMI among High-School Students.
机构信息
Innovative Use of Mobile Phones to Promote Physical Activity and Nutrition across the Lifespan (The IMPACT) Research Group, Department of Biosciences and Nutrition, Karolinska Institutet, 14183 Huddinge, Sweden.
Division of Endocrinology, Metabolism and Diabetes, First Department of Pediatrics, National and Kapodistrian University of Athens Medical School, "Aghia Sophia" Children's Hospital, 11527 Athens, Greece.
出版信息
Nutrients. 2021 Mar 9;13(3):880. doi: 10.3390/nu13030880.
Fast self-reported eating rate (SRER) has been associated with increased adiposity in children and adults. No studies have been conducted among high-school students, and SRER has not been validated vs. objective eating rate (OBER) in such populations. The objectives were to investigate (among high-school student populations) the association between OBER and BMI z-scores (BMIz), the validity of SRER vs. OBER, and potential differences in BMIz between SRER categories. Three studies were conducted. Study 1 included 116 Swedish students (mean ± SD age: 16.5 ± 0.8, 59% females) who were eating school lunch. Food intake and meal duration were objectively recorded, and OBER was calculated. Additionally, students provided SRER. Study 2 included students ( = 50, mean ± SD age: 16.7 ± 0.6, 58% females) from Study 1 who ate another objectively recorded school lunch. Study 3 included 1832 high-school students (mean ± SD age: 15.8 ± 0.9, 51% females) from Sweden ( = 748) and Greece ( = 1084) who provided SRER. In Study 1, students with BMIz ≥ 0 had faster OBER vs. students with BMIz < 0 (mean difference: +7.7 g/min or +27%, = 0.012), while students with fast SRER had higher OBER vs. students with slow SRER (mean difference: +13.7 g/min or +56%, = 0.001). However, there was "minimal" agreement between SRER and OBER categories (κ = 0.31, < 0.001). In Study 2, OBER during lunch 1 had a "large" correlation with OBER during lunch 2 ( = 0.75, < 0.001). In Study 3, fast SRER students had higher BMIz vs. slow SRER students (mean difference: 0.37, < 0.001). Similar observations were found among both Swedish and Greek students. For the first time in high-school students, we confirm the association between fast eating and increased adiposity. Our validation analysis suggests that SRER could be used as a proxy for OBER in studies with large sample sizes on a group level. With smaller samples, OBER should be used instead. To assess eating rate on an individual level, OBER can be used while SRER should be avoided.
快速自我报告进食率 (SRER) 与儿童和成人的肥胖有关。目前尚未在高中生中开展相关研究，且 SRER 与此类人群中的客观进食率 (OBER) 尚未得到验证。本研究旨在探讨高中生人群中 OBER 与 BMI z 分数 (BMIz) 的相关性，SRER 与 OBER 的有效性，以及 SRER 类别之间 BMIz 的潜在差异。共进行了三项研究。研究 1 纳入了 116 名瑞典学生（平均 ± 标准差年龄：16.5 ± 0.8，59%为女性），他们正在吃学校午餐。客观记录食物摄入量和用餐时间，并计算 OBER。此外，学生还提供了 SRER。研究 2 纳入了来自研究 1 的另外 50 名学生（平均 ± 标准差年龄：16.7 ± 0.6，58%为女性），他们吃了另一顿客观记录的学校午餐。研究 3 纳入了来自瑞典（n = 748）和希腊（n = 1084）的 1832 名高中生（平均 ± 标准差年龄：15.8 ± 0.9，51%为女性），他们提供了 SRER。在研究 1 中，BMIz ≥ 0 的学生的 OBER 比 BMIz < 0 的学生快（平均差异：+7.7 g/min 或+27%， = 0.012），而 SRER 较快的学生的 OBER 比 SRER 较慢的学生高（平均差异：+13.7 g/min 或+56%， = 0.001）。然而，SRER 和 OBER 类别的一致性“很小”（κ = 0.31， < 0.001）。在研究 2 中，午餐 1 的 OBER 与午餐 2 的 OBER 有“较大”的相关性（ = 0.75， < 0.001）。在研究 3 中，SRER 较快的学生的 BMIz 比 SRER 较慢的学生高（平均差异：0.37， < 0.001）。在瑞典和希腊学生中也观察到了类似的结果。这是首次在高中生中证实快速进食与肥胖增加之间的关联。我们的验证分析表明，在样本量较大的群体水平研究中，SRER 可作为 OBER 的替代指标。在样本量较小的情况下，应使用 OBER。要在个体水平上评估进食率，可以使用 OBER，而应避免使用 SRER。
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