Longitudinal dietary trajectories from preconception to mid-childhood in women and children in the Southampton Women's Survey and their relation to offspring adiposity: a group-based trajectory modelling approach.
Longitudinal dietary trajectories from preconception to mid-childhood in women and children in the Southampton Women's Survey and their relation to offspring adiposity: a group-based trajectory modelling approach.
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DOI：
10.1038/s41366-021-01047-2
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发表时间：
2022-04
期刊：
影响因子：
--
通讯作者：
Crozier SR
中科院分区：
文献类型：
--
作者：
Dalrymple KV;Vogel C;Godfrey KM;Baird J;Harvey NC;Hanson MA;Cooper C;Inskip HM;Crozier SR
全球儿童肥胖率正在上升，不良的饮食质量是一个重要的促成因素。对生命早期的纵向饮食质量进行评估，可以确定作为有效公共卫生战略一部分的营养干预的时间点和亚组。本研究旨在：(1)定义从孕前到8-9岁儿童的母亲-后代饮食质量轨迹的潜在类别；(2)确定与这些轨迹相关的早期生活因素；(3)描述这些轨迹与儿童肥胖结局之间的关系。使用饮食质量指数（DQI）的群体轨迹模型分析了2963名英国南安普顿妇女调查的母亲-后代二人组的饮食数据。通过访谈者管理的食物频率问卷，评估孕妇孕前、妊娠11周和34周时的饮食，以及子女6个月和12个月、3岁、6-7岁和8 - 9岁时的饮食。在每个时间点，使用主成分分析得出标准化DQI。采用双能x线吸收仪（DXA）和BMI z评分对8-9岁的肥胖进行评估。确定了五轨迹群模型为最优模型。饮食质量轨迹以稳定的水平线为特征，分为差（n = 142）、差-中等（n = 667）、中（n = 1146）、中-较好（n = 818）和最佳（n = 163）。较差的饮食轨迹与较高的母亲孕前体重指数、吸烟、多胎、较低的母亲年龄和较低的受教育程度有关。通过调整混杂因素的线性回归，在1216名8-9岁随访的儿童中，饮食轨迹的1类减少与较高的DXA体脂百分比(0.08 SD（95%可信区间0.01,0.15）和BMI z-score (0.08 SD（0.00, 0.16）相关。母亲-后代的饮食轨迹在生命早期是稳定的，较差的饮食质量与母亲的社会人口统计学和其他因素以及儿童肥胖有关。孕前期可能是促进产妇积极饮食改变以改善儿童结局的重要窗口期。
Rates of childhood obesity are increasing globally, with poor dietary quality an important contributory factor. Evaluation of longitudinal diet quality across early life could identify timepoints and subgroups for nutritional interventions as part of effective public health strategies. This research aimed to: (1) define latent classes of mother-offspring diet quality trajectories from pre-pregnancy to child age 8–9 years, (2) identify early life factors associated with these trajectories, and (3) describe the association between the trajectories and childhood adiposity outcomes. Dietary data from 2963 UK Southampton Women’s Survey mother-offspring dyads were analysed using group-based trajectory modelling of a diet quality index (DQI). Maternal diet was assessed pre-pregnancy and at 11- and 34-weeks’ gestation, and offspring diet at ages 6 and 12 months, 3, 6-7- and 8–9-years using interviewer-administered food frequency questionnaires. At each timepoint, a standardised DQI was derived using principal component analysis. Adiposity age 8–9 years was assessed using dual-energy X-ray absorptiometry (DXA) and BMI z-scores. A five-trajectory group model was identified as optimal. The diet quality trajectories were characterised as stable, horizontal lines and were categorised as poor (n = 142), poor-medium (n = 667), medium (n = 1146), medium-better (n = 818) and best (n = 163). A poorer dietary trajectory was associated with higher maternal pre-pregnancy BMI, smoking, multiparity, lower maternal age and lower educational attainment. Using linear regression adjusted for confounders, a 1-category decrease in the dietary trajectory was associated with higher DXA percentage body fat (0.08 SD (95% confidence interval 0.01, 0.15) and BMI z-score (0.08 SD (0.00, 0.16) in the 1216 children followed up at age 8–9 years. Mother-offspring dietary trajectories are stable across early life, with poorer diet quality associated with maternal socio-demographic and other factors and childhood adiposity. The preconception period may be an important window to promote positive maternal dietary changes in order to improve childhood outcomes.
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影响因子：
4.2
作者：
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通讯作者：
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