Nasser Roseann, Cook Stephanie L, Dorsch Kim D, Haennel Robert G
Clinical Nutrition Services, Regina Qu'Appelle Health Region, Regina, Saskatchewan, Canada.
J Am Diet Assoc. 2006 Jun;106(6):850-9. doi: 10.1016/j.jada.2006.03.011.
The purpose of this study was to compare an educational approach based on the Stages of Change Model with usual care education in reducing dietary fat intake and serum lipids in individuals with hyperlipidemia.
A 40-week randomized control study was conducted. Four education sessions were provided on an outpatient basis during a 1-month period with follow-up every 6 weeks.
The sample consisted of 141 men and women with hyperlipidemia (mean age 50+/-11 years and a mean body mass index of 30+/-6) randomly assigned to one of two education interventions.
The stages of change group was provided with tailored dietary activities based on their readiness to change to reduce dietary fat intake. Dietary information and activities for the usual care program were developed for those individuals ready to make a change in their diets.
Serum lipids, anthropometric measures, readiness to change, dietary intake, and exercise data were assessed at baseline, 4, 16, 28, and 40 weeks.
A repeated measures analysis of variance was used to compare differences between groups across time.
Total cholesterol, low-density lipoprotein cholesterol, and body weight decreased significantly at 4 weeks (P<0.05) for both groups and were sustained over time, with no differences between the groups.
The stages of change education approach was not more effective than the usual care education approach in decreasing dietary fat intake and serum lipids in a classroom setting.
本研究旨在比较基于行为改变阶段模型的教育方法与常规护理教育在降低高脂血症患者膳食脂肪摄入量和血清脂质方面的效果。
进行了一项为期40周的随机对照研究。在1个月内门诊提供4次教育课程,每6周进行一次随访。
样本包括141名高脂血症男性和女性(平均年龄50±11岁,平均体重指数30±6),随机分配到两种教育干预措施之一。
行为改变阶段组根据其改变意愿接受量身定制的饮食活动,以减少膳食脂肪摄入量。为那些准备改变饮食的个体制定常规护理计划的饮食信息和活动。
在基线、第4、16、28和40周评估血清脂质、人体测量指标、改变意愿、饮食摄入量和运动数据。
采用重复测量方差分析比较两组随时间的差异。
两组在第4周时总胆固醇、低密度脂蛋白胆固醇和体重均显著下降(P<0.05),且随时间持续下降,两组之间无差异。
在课堂环境中,行为改变阶段教育方法在降低膳食脂肪摄入量和血清脂质方面并不比常规护理教育方法更有效。