Howard Larry L
Department of Economics, California State University, Fullerton, 800 N. State College Boulevard, Fullerton, CA 92834-6848, USA.
ISRN Nutr. 2013 Jun 19;2013:426029. doi: 10.5402/2013/426029. eCollection 2013.
This research analyses the longitudinal relationships between household food insecurity (very low and low food security) experiences and children's consumption (servings/week) of fruit, green salad, carrots, potatoes, and other types of vegetables. Using a panel of 5,670 children aged 10-13 years who were first observed in spring 2004 and then again in spring 2007 at age 13-16 years, the main findings are as follows: first, children experiencing low food security consume significantly (P < 0.05) more fruit per week. In contrast, children experiencing very low food security consume significantly more carrots and potatoes per week, and estimates based on gender-stratified models indicate that the association is strongest among girls. Second, activity patterns are significantly related to children's dietary patterns; physical exercise is positively associated with fruit, green salad, carrot, and other vegetables consumption, while television watching is positively associated with potato consumption. Overall, the findings suggest that children living in food insecure home environments consume a greater number of servings of fruits and vegetables per week, relative to children living in food secure home environments.
本研究分析了家庭粮食不安全(极低和低粮食安全)经历与儿童水果、绿色沙拉、胡萝卜、土豆及其他蔬菜的消费量(份/周)之间的纵向关系。研究使用了一个由5670名10至13岁儿童组成的样本,这些儿童于2004年春季首次接受观察,随后在2007年春季13至16岁时再次接受观察,主要研究结果如下:第一,经历低粮食安全的儿童每周水果消费量显著更高(P<0.05)。相比之下,经历极低粮食安全的儿童每周胡萝卜和土豆消费量显著更高,基于性别分层模型的估计表明,这种关联在女孩中最为明显。第二,活动模式与儿童的饮食模式显著相关;体育锻炼与水果、绿色沙拉、胡萝卜及其他蔬菜的消费呈正相关,而看电视与土豆消费呈正相关。总体而言,研究结果表明,与生活在粮食安全家庭环境中的儿童相比,生活在粮食不安全家庭环境中的儿童每周食用的水果和蔬菜份数更多。