Department of Nutrition, School of Health Sciences, Simmons College, 300 The Fenway, Boston, MA 02115, USA.
Matern Child Health J. 2011 Jul;15(5):627-33. doi: 10.1007/s10995-010-0616-5.
We examined the association between women's/children's duration of WIC participation and household food security status. For mothers (n = 21,863) and their children (n = 57,377) participating in WIC (2001-2006), longitudinal measures of household food security status were collected using a subscale of the USDA Food Security Module. Using logistic regression, household food security status at the last WIC visit was associated with measures of WIC duration (number of trimesters on WIC for pregnant women, and number of WIC visits for children). Among women with prenatal household food insecurity with hunger, odds of any post-partum household food insecurity was reduced with first (AOR = 0.67, 95% CI = 0.48-0.94) or second trimester of entry (AOR= 0.64, 95% CI = 0.45-0.90) versus third. Among children with initial household food insecurity without hunger, an additional WIC visit reduced the odds of any household food insecurity (AOR = 0.92, 95% CI = 0.90-0.94) and of household food insecurity with hunger (AOR = 0.94, 95% CI = 0.89-0.98) at the last visit. Among those with initial household food insecurity with hunger, an additional WIC visit reduced the odds of any household food insecurity (AOR = 0.96, 95% CI = 0.92-0.99) and of household food insecurity with hunger (AOR = 0.88, 95% CI = 0.83-0.94) at the last visit. Earlier and longer WIC participation may improve household food security status, particularly of vulnerable groups.
我们研究了妇女/儿童参加 WIC 计划的时间长短与家庭粮食安全状况之间的关系。对于参加 WIC 计划的母亲（n=21863）及其子女（n=57377）（2001-2006 年），使用美国农业部粮食安全模块的一个子量表收集了家庭粮食安全状况的纵向测量数据。使用逻辑回归，最后一次 WIC 访问时的家庭粮食安全状况与 WIC 持续时间的测量值相关（孕妇参加 WIC 的季度数和儿童参加 WIC 的次数）。在有产前家庭粮食不安全和饥饿的妇女中，首次（优势比[OR]=0.67，95%置信区间[CI]=0.48-0.94）或第二次进入 WIC 计划（OR=0.64，95% CI=0.45-0.90）的情况下，任何产后家庭粮食不安全的可能性降低。在初始家庭粮食安全无饥饿的儿童中，额外的 WIC 访问降低了任何家庭粮食不安全的可能性（OR=0.92，95% CI=0.90-0.94）和家庭粮食不安全与饥饿的可能性（OR=0.94，95% CI=0.89-0.98）。在最初家庭粮食安全有饥饿的儿童中，额外的 WIC 访问降低了任何家庭粮食不安全的可能性（OR=0.96，95% CI=0.92-0.99）和家庭粮食不安全与饥饿的可能性（OR=0.88，95% CI=0.83-0.94）。更早和更长时间的 WIC 参与可能会改善家庭粮食安全状况，特别是弱势群体的状况。
