Institute of Public Health, Federal University of Mato Grosso, Cuiabá, Brazil.
Department of Epidemiology, Institute of Social Medicine, State University of Rio de Janeiro, Rio de Janeiro, Brazil.
Am J Hum Biol. 2023 Jun;35(6):e23871. doi: 10.1002/ajhb.23871. Epub 2023 Feb 2.
University students are vulnerable to unhealthy eating habits that characterize a proinflammatory diet. This study aimed to estimate the dietary inflammatory index (DII) and its association with the trajectory of body adiposity markers in university students.
The study analyzed data from 685 students entering a Brazilian public university in 2016 and 2017 and followed until 2018. DII was estimated from 39 dietary parameters obtained by 24-h dietary recall. Body adiposity was assessed by anthropometric markers and the percentage of body fat. Linear mixed-effects models were used to estimate the trajectory of adiposity markers according to DII tertiles.
After adjustment for confounding variables, at baseline, DII showed a positive association with increased percentage of body fat among men (β = 0.52; 95% CI: 0.01; 1.03) and waist-to-height ratio (WHtR; β = 0.15; 95% CI: 0.12; 0.18) and among women with all body adiposity markers: BMI (β = 0.68; 95% CI: 0.30; 1.05), percentage of body fat (β = 1.43; 95% CI: 0.74; 2.11), WC (β = 1.15; 95% CI: 0.41; 1.89) and WHtR (β = 0.13; 95% CI:0,10; 0.16). The rate of change of the outcome variables over time was not associated with DII at baseline.
The diet of university students in this Brazilian cohort study was characterized as proinflammatory and it was associated with body adiposity markers.
大学生易形成促炎饮食的不健康饮食习惯。本研究旨在评估饮食炎症指数（DII）与大学生体脂标志物轨迹的相关性。
本研究分析了 2016 年和 2017 年进入巴西一所公立大学的 685 名学生的数据，并随访至 2018 年。通过 24 小时膳食回顾获得的 39 种膳食参数来估计 DII。通过人体测量标记物和体脂百分比评估体脂。使用线性混合效应模型根据 DII 三分位估计体脂标志物的轨迹。
在调整混杂变量后，在基线时，DII 与男性体脂百分比（β=0.52；95%CI：0.01；1.03）和腰高比（WHtR；β=0.15；95%CI：0.12；0.18）的增加呈正相关，以及女性所有体脂标志物均呈正相关：BMI（β=0.68；95%CI：0.30；1.05）、体脂百分比（β=1.43；95%CI：0.74；2.11）、WC（β=1.15；95%CI：0.41；1.89）和 WHtR（β=0.13；95%CI：0.10；0.16）。随着时间的推移，结果变量的变化率与基线时的 DII 无关。
本巴西队列研究中大学生的饮食呈促炎特征，与体脂标志物有关。
