Armstrong Bridget, Hepworth Allison D, Black Maureen M
Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina, US.
Department of Social Work, University of Maryland School of Social Work, Baltimore, Maryland, US.
Pediatr Obes. 2020 Oct;15(10):e12637. doi: 10.1111/ijpo.12637. Epub 2020 Apr 15.
Research is needed to identify how food insecurity affects maternal eating behavior and child feeding practices, factors that may pose intergenerational risks for obesity.
This longitudinal study investigated whether maternal restrained eating mediated the association between household food insecurity and feeding practices.
Participants included 277 WIC-eligible mothers (69% below the poverty line, 70% African American) and their toddlers (M = 20.11 months, SD = 5.50) participating in a childhood obesity prevention trial. Maternal reports of household food insecurity, restrained eating, and child feeding practices (restrictive and responsive) were collected at baseline, 6 and 12 months and analyzed using multilevel mediation.
Forty percent of mothers reported some degree of household food insecurity over 12 months. Within-person analyses showed that relative increases in household food insecurity were indirectly related to increases in restrictive and decreases in responsive child feeding practices, mediated through increases in mothers' own restrained eating.
Relative change in household food insecurity (rather than overall severity) appears to have indirect effects on toddler feeding practices, through mothers' own eating. Stable household food security without transient food insecurity may improve health and wellbeing for both mothers and children.
需要开展研究以确定粮食不安全如何影响孕产妇的饮食行为和儿童喂养方式，这些因素可能会给肥胖带来代际风险。
这项纵向研究调查了孕产妇的节制饮食是否介导了家庭粮食不安全与喂养方式之间的关联。
参与者包括277名符合妇女、婴儿和儿童营养补充计划（WIC）资格的母亲（69%生活在贫困线以下，70%为非裔美国人）及其幼儿（平均年龄M = 20.11个月，标准差SD = 5.50），他们参与了一项儿童肥胖预防试验。在基线、6个月和12个月时收集了关于家庭粮食不安全、节制饮食和儿童喂养方式（限制型和响应型）的孕产妇报告，并使用多层次中介分析进行了分析。
40%的母亲报告在12个月内存在一定程度的家庭粮食不安全。个体内分析表明，家庭粮食不安全的相对增加与限制型儿童喂养方式的增加以及响应型儿童喂养方式的减少间接相关，这是通过母亲自身节制饮食的增加介导的。
家庭粮食不安全的相对变化（而非总体严重程度）似乎通过母亲自身的饮食对幼儿喂养方式产生间接影响。没有短暂粮食不安全的稳定家庭粮食安全可能会改善母亲和儿童的健康与福祉。
