A randomized clinical trial evaluating online interventions to improve fruit and vegetable consumption.
A randomized clinical trial evaluating online interventions to improve fruit and vegetable consumption.
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DOI：
10.2105/ajph.2008.154468
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发表时间：
2010-02
影响因子：
12.7
通讯作者：
MENU Choices Team
中科院分区：
文献类型：
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作者：
Alexander GL;McClure JB;Calvi JH;Divine GW;Stopponi MA;Rolnick SJ;Heimendinger J;Tolsma DD;Resnicow K;Campbell MK;Strecher VJ;Johnson CC;MENU Choices Team
我们评估了一个基于人群的样本中水果和蔬菜摄入量的变化，比较了一个在线的非定制程序（组1）与一个定制的行为干预（组2）和一个定制的行为干预加上通过电子邮件进行的基于动机访谈的咨询（组3）。我们进行了一项随机对照干预试验，从华盛顿的西雅图、科罗拉多的丹佛、明尼苏达州的明尼阿波利斯、密歇根州的底特律和格鲁吉亚的亚特兰大的5个健康计划中招募了21至65岁的成员。参与者在基线和3，6和12个月时报告水果和蔬菜摄入量。我们使用有效的自我报告水果和蔬菜食物频率问卷，评估基线后12个月每天水果和蔬菜摄入量的平均变化。在2540名试验参与者中，80%在12个月时进行了随访。总体基线平均水果和蔬菜摄入量为每天4.4份。所有研究组的平均份量增加了2份以上（P<0.001），其中第3组的参与者增加最多（+2.8份）（与对照组相比，P= 0.05）。总体方案满意度很高。这种在线营养干预深受欢迎，方便，易于传播，并与持续的饮食变化有关。这些计划有望成为基于人群的饮食干预措施。
We assessed change in fruit and vegetable intake in a population-based sample, comparing an online untailored program (arm 1) with a tailored behavioral intervention (arm 2) and with a tailored behavioral intervention plus motivational interviewing–based counseling via e-mail (arm 3). We conducted a randomized controlled intervention trial, enrolling members aged 21 to 65 years from 5 health plans in Seattle, Washington; Denver, Colorado; Minneapolis, Minnesota; Detroit, Michigan; and Atlanta, Georgia. Participants reported fruit and vegetable intake at baseline and at 3, 6, and 12 months. We assessed mean change in fruit and vegetable servings per day at 12 months after baseline, using a validated self-report fruit and vegetable food frequency questionnaire. Of 2540 trial participants, 80% were followed up at 12 months. Overall baseline mean fruit and vegetable intake was 4.4 servings per day. Average servings increased by more than 2 servings across all study arms (P<.001), with the greatest increase (+2.8 servings) among participants of arm 3 (P=.05, compared with control). Overall program satisfaction was high. This online nutritional intervention was well received, convenient, easy to disseminate, and associated with sustained dietary change. Such programs have promise as population-based dietary interventions.