College of Nursing, Michigan State University, East Lansing, Michigan, USA.
BMC Public Health. 2009 Nov 21;9:424. doi: 10.1186/1471-2458-9-424.
Recruitment and retention are key functions for programs promoting nutrition and other lifestyle behavioral changes in low-income populations. This paper describes strategies for recruitment and retention and presents predictors of early (two-month post intervention) and late (eight-month post intervention) dropout (non retention) and overall retention among young, low-income overweight and obese mothers participating in a community-based randomized pilot trial called Mothers In Motion.
Low-income overweight and obese African American and white mothers ages 18 to 34 were recruited from the Special Supplemental Nutrition Program for Women, Infants, and Children in southern Michigan. Participants (n = 129) were randomly assigned to an intervention (n = 64) or control (n = 65) group according to a stratification procedure to equalize representation in two racial groups (African American and white) and three body mass index categories (25.0-29.9 kg/m(2), 30.0-34.9 kg/m(2), and 35.0-39.9 kg/m(2)). The 10-week theory-based culturally sensitive intervention focused on healthy eating, physical activity, and stress management messages that were delivered via an interactive DVD and reinforced by five peer-support group teleconferences. Forward stepwise multiple logistic regression was performed to examine whether dietary fat, fruit and vegetable intake behaviors, physical activity, perceived stress, positive and negative affect, depression, and race predicted dropout as data were collected two-month and eight-month after the active intervention phase.
Trained personnel were successful in recruiting subjects. Increased level of depression was a predictor of early dropout (odds ratio = 1.04; 95% CI = 1.00, 1.08; p = 0.03). Greater stress predicted late dropout (odds ratio = 0.20; 95% CI = 0.00, 0.37; p = 0.01). Dietary fat, fruit, and vegetable intake behaviors, physical activity, positive and negative affect, and race were not associated with either early or late dropout. Less negative affect was a marginal predictor of participant retention (odds ratio = 0.57; 95% CI = 0.31, 1.03; p = 0.06).
Dropout rates in this study were higher for participants who reported higher levels of depression and stress.
Current Controlled Trials NCT00944060.
在低收入人群中推广营养和其他生活方式行为改变的项目，其关键功能是招募和保留参与者。本文介绍了招募和保留参与者的策略，并提出了预测年轻、低收入超重和肥胖母亲在社区为基础的随机试点试验中早期（干预后两个月）和晚期（干预后八个月）辍学（不保留）和总体保留率的预测因子，该试验名为“运动中的母亲”。
从密歇根州南部的特殊补充营养计划（针对妇女、婴儿和儿童的计划）中招募了年龄在 18 至 34 岁的低收入超重和肥胖非裔美国人和白人母亲。根据分层程序，将参与者（n = 129）随机分配到干预组（n = 64）或对照组（n = 65），以平衡两个种族群体（非裔美国人和白人）和三个身体质量指数类别（25.0-29.9 kg/m2、30.0-34.9 kg/m2 和 35.0-39.9 kg/m2）的代表性。为期 10 周的基于理论的文化敏感干预措施侧重于健康饮食、身体活动和压力管理信息，这些信息通过交互式 DVD 传递，并通过五次同伴支持小组电话会议加强。在积极干预阶段后两个月和八个月收集数据时，采用向前逐步多元逻辑回归来检验饮食脂肪、水果和蔬菜摄入量行为、身体活动、感知压力、积极和消极情绪、抑郁和种族是否预测辍学。
经过培训的人员成功招募了研究对象。抑郁程度增加是早期辍学的预测因素（优势比=1.04；95%置信区间=1.00，1.08；p=0.03）。较大的压力预示着晚期辍学（优势比=0.20；95%置信区间=0.00，0.37；p=0.01）。饮食脂肪、水果和蔬菜摄入量行为、身体活动、积极和消极情绪以及种族与早期或晚期辍学均无关。较少的消极情绪是参与者保留的边缘预测因素（优势比=0.57；95%置信区间=0.31，1.03；p=0.06）。
在这项研究中，报告抑郁和压力水平较高的参与者辍学率较高。
当前对照试验 NCT00944060。
