The association of food insecurity with the relative reinforcing value of food, BMI, and gestational weight gain among pregnant women.
The association of food insecurity with the relative reinforcing value of food, BMI, and gestational weight gain among pregnant women.
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DOI：
10.1016/j.appet.2020.104685
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发表时间：
2020-08-01
期刊：
影响因子：
5.4
通讯作者：
Kong, Kai Ling
中科院分区：
文献类型：
--
作者：
Crandall, Amanda K.;Temple, Jennifer L.;Kong, Kai Ling
食物不安全与成年人中的肥胖有关。在怀孕期间，食物不安全会增加母亲和婴儿肥胖的风险。这项研究调查了食品安全与孕前体重指数(BMI)、孕期体重增加(GWG)充分性以及孕期食物的相对强化值(RRV)之间的关系。这项二次数据分析调查了258名孕妇(平均胎龄21.21±10.21周)，调查了孕前体重、身高、预产期和GWG，目前与饮食和怀孕有关的诊断，以及人口统计学。调查还评估了当前的食品安全和餐饮、零食、认知活动和积极活动的RRV。BMI根据孕前身高和体重(kg/m2)计算。到目前为止，妊娠体重增加的充分性是根据医学研究所的指南得出的。采用多元线性回归模型分析孕前BMI和RRV与食品安全性的关系。利用多项回归模型检验了粮食安全与GWG充足性之间的关系。在控制协变量后，较低的食物安全性与较大的孕前体重指数(β=0.6，p<；.001)和较大的零食RRV(β=3.46，p&t；.05)有关。较低的粮食安全也与GWG迄今低于建议水平有关(OR=1.25，p<；0.05)。食物不安全与怀孕期间较高的相对食物强化和较高的孕前体重状况有关。未来的研究应该通过纵向评估这些发现来复制和扩展这些发现，以更好地评估这些关系的方向。
Food insecurity is associated with obesity among adults. During pregnancy, food insecurity increases obesity risk among mothers and infants. This study investigated the association of food security with pre-pregnancy body mass index (BMI), gestational weight gain (GWG) adequacy to date, and the relative reinforcing value (RRV) of food during pregnancy. This secondary data analysis examined 258 pregnant women (mean gestational age = 21.21 ± 10.21 weeks) surveyed on pre-pregnancy weight, height, pregnancy due date and GWG to date, current diagnoses related to eating and pregnancy, and demographics. The survey also assessed current food security and RRV of meals, snacks, cognitive activities, and active activities. BMI was calculated from pre-pregnancy height and weight (kg/m2). Gestational weight gain adequacy to date was derived from the Institute of Medicine guidelines. Multivariable linear regression models were used to examine the relation of food security with pre-pregnancy BMI and RRVs of foods/activities. The relation between food security and GWG adequacy to date was examined using multinomial regression models. Lower food security was related to both greater pre-pregnancy BMI (β = 0.60, p < .001) and greater RRV of snack foods (β = 3.46, p < .05), after controlling for covariates. Lower food security was also related to GWG to date below recommended levels (OR =1.25, p < .05). Food insecurity is related to higher relative food reinforcement during pregnancy, and greater pre-pregnancy weight status. Future research should replicate and extend these findings by assessing them longitudinally to better evaluate the directions of these relationships.
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