基于网络的工作场所健康促进计划:改善饮食习惯、减轻压力和增加体育锻炼的现场试验随机对照试验%A Cook,Royer F %A Billings,Douglas W %A Hersch,Rebekah K %A Back,Anita S %A Hendrickson,April %+ ISA Associates, North Union Street 201, Suite 330, Alexandria, VA 22314, USA， +1 703 739 0880, rcook@isagroup.com %K网络%K干预%K压力%K饮食%K活动%D 2007 %7 19.6.2007 %9原始论文%J J Med Internet Res %G English %X背景:大多数工作场所都参与某种形式的健康促进规划，旨在改善工人的健康和降低保健费用。虽然这些项目通常是通过研讨会和印刷材料相结合的方式进行的，但工作场所健康促进项目越来越多地通过互联网进行。目的:本研究的目的是评估基于网络的多媒体工作场所健康促进计划的有效性，该计划旨在改善饮食习惯，减轻压力，增加体育锻炼。方法:采用随机对照试验设计，每组进行前测后测比较，将某人力资源公司的419名员工随机分配到基于网络的条件和提供相同主题印刷材料的条件。所有受试者都通过包含多种健康行为和态度的在线问卷在测试前和测试后进行评估。试验周期为3个月。问卷数据分析主要采用协方差分析和t检验。结果:两组的保留率都很好——网络组为85%，打印组为87%。 Subjects using the Web-based program performed significantly better than the print group on Attitudes Toward a Healthful Diet (F1,415 = 7.104, P = .008) and Dietary Stage of Change (F1,408 = 6.487, P = .01), but there were no significant group differences on the five other dietary measures. Both groups also showed improvement from pretest to posttest on most dietary measures, as indicated by significant t tests. Within the Web-based group, dosage analyses showed significant effects of the number of times the subject accessed the program on measures of Dietary Self-Efficacy (F2,203 = 5.270, P = .003), Attitudes Toward a Healthful Diet (F2,204 = 2.585, P = .045), and Dietary Stage of Change (F2,200 = 4.627, P = .005). No significant differences were found between the two groups on measures of stress or physical activity, although t tests of pretest-posttest changes indicated that both groups improved on several of these measures. The Web-based group gave significantly higher ratings to the program materials than the print group on all health topics and in their overall evaluation (F1,410 = 9.808, P = .002). Conclusions: The Web-based program was more effective than print materials in producing improvements in the areas of diet and nutrition but was not more effective in reducing stress or increasing physical activity. The higher ratings given to the Web-based program suggest that workers preferred it to the print materials. Both groups showed numerous pretest-posttest improvements in all health topics, although such improvements might be attributable in part to a Hawthorne effect. Results suggest that a multimedia Web-based program can be a promising means of delivering health promotion material to the workforce, particularly in the area of diet and nutrition. %R 10.2196/jmir.9.2.e17 %U //www.mybigtv.com/2007/2/e17/ %U https://doi.org/10.2196/jmir.9.2.e17