@Article{信息:doi 10.2196 / / jmir。8031，作者=“Nakamura, Saki和Inayama, Takayo和Harada, Kazuhiro和Arao, Takashi”，标题=“基于网络的营养教育干预在日本低收入成年人中减少蔬菜摄入量差异:随机对照试验”，期刊=“J Med Internet Res”，年=“2017”，月=“11”，日=“24”，卷=“19”，数=“11”，页=“e377”，关键词=“蔬菜摄入量;成年人;社会经济劣势;基于网络的营养干预;背景:仅在日本，还没有现有的基于网络的营养教育干预措施根据社会经济地位进行评估。目的:目的是调查基于网络的干预项目对减少中低收入日本成年人蔬菜摄入量差异的影响。方法:在这项随机对照试验中，从2015年10月至2016年3月，在三个时间点对参与者进行评估——基线、干预后(5周后)和3个月后的随访。我们通过一家日本在线研究服务公司收集了8564名30岁至59岁的成年人的数据。研究人员根据国家人口统计数据对参与者进行了性别和年龄分层，并随机选择。 They were then randomly allocated into intervention (n=900) and control (n=600) groups such that both groups contained an equal number of individuals with low and middle income. The intervention program encouraged behavior change using behavioral theories and techniques tailored to their assumed stage of change. The outcome was vegetable intake servings per day (1 serving being approximately 70 g). Results: Out of 900 participants who started, 450 were from the middle income group (of which 386 or 85.7{\%} completed the intervention), and 450 were from the low income group (of which 371 or 82.4{\%} completed). In the intervention group, vegetable intake increased in the low-income participants from baseline to postintervention (0.42 servings, 95{\%} CI 0.11-0.72). A two-way analysis of variance showed that low-income participants had significant main effects of group ($\eta$2=0.04, P=.01) and time ($\eta$2=0.01, P<.001), and a significant interaction ($\eta$2=0.01, P=.009). Middle-income participants also had a significant main effect of time ($\eta$2=0.01, P=.006) and a significant interaction ($\eta$2=0.01, P=.046). Conclusions: This Web-based nutritional education intervention could fill the vegetable intake gap between low- and middle-income adults in Japan, and is expected to prevent noncommunicable and lifestyle-related diseases. Further intervention program improvements are necessary to maintain and increase vegetable intake for other groups. Trial Registration: Current Controlled Trials (UMIN-ICDR): UMIN000019376; https://upload.umin.ac.jp/cgi-open-bin/ icdr{\_}e/ctr{\_}view.cgi?recptno=R000022404 (Archived by WebCite at http://www.webcitation.org/6u9wihBZU) ", issn="1438-8871", doi="10.2196/jmir.8031", url="//www.mybigtv.com/2017/11/e377/", url="https://doi.org/10.2196/jmir.8031", url="http://www.ncbi.nlm.nih.gov/pubmed/29175810" }