Short-term efficacy of a web-based computer-tailored nutrition intervention: Main effects and mediators
Short-term efficacy of a web-based computer-tailored nutrition intervention: Main effects and mediators
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DOI：
10.1207/s15324796abm2901_8
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发表时间：
2005-02-01
影响因子：
3.8
通讯作者：
Brug, J
中科院分区：
文献类型：
--
作者：
Oenema, A;Tan, F;Brug, J
背景：本研究评估了基于网络的计算机定制营养干预的短期疗效和受访者的评价，旨在减少饱和脂肪摄入量，增加水果和蔬菜摄入量。感知的个人相关性、个体化和信息的趣味性被测试为定制干预效果的中介。目的：目的是研究基于网络的计算机定制营养干预的短期效果。方法：调查对象（N = 782）随机分为定制干预组、通用营养信息对照组和无信息对照组。在基线和干预后3周测量脂肪、水果和蔬菜摄入量和行为决定因素。后测组差异采用多元线性回归分析。结果：计算机定制干预对脂肪、水果和蔬菜摄入量以及蔬菜和水果摄入量的决定因素产生了显著影响。与一般的营养信息相比，量身定制的信息被评为更个人化、个性化、有趣和新颖。感知的个人相关性、个性化和趣味性被确定为一些剪裁效果的中介。结论：这项研究的结果表明，基于网络的、计算机定制的营养信息可以对脂肪、水果和蔬菜摄入量的决定因素产生短期影响。定制信息的效果可以部分解释为信息的感知个人相关性和个性化。
Background: This study evaluates the short-term efficacy and respondents' evaluations of a Web-based computer-tailored nutrition intervention, aiming to decrease saturated fat intake and increase fruit and vegetable intake. Perceived personal relevance, individualization, and interestingness of the information were tested as mediators of the effects of the tailored intervention. Purpose: The objective was to study the short-term effects of a Web-based computer-tailored nutrition intervention. Methods: Respondents (N = 782) were randomly assigned to a tailored intervention group, a generic nutrition information control group, or a no-information control group. Fat, fruit, and vegetable intakes and behavioral determinants were measured at baseline and at 3 weeks postintervention. Posttest group differences were determined by multiple linear regression analyses. Results: The computer-tailored intervention produced significant effects for the determinants of fat, fruit, and vegetable intake and for vegetable and fruit intake. The tailored information was rated as more personally relevant, individualized, interesting, and new than the generic nutrition information. Perceived personal relevance, individualization, and interestingness were identified as mediators of some of the tailoring effects. Conclusions: The findings of this study indicate that Web-based, computer-tailored nutrition information can have a short-term effect on the determinants of fat, fruit, and vegetable intake. The effect of the tailored information may be partly explained by the perceived personal relevance and individualization of the information.