针对农村成年人含糖饮料摄入量的行为干预中参与度和结果实现的预测因素。
Predictors of engagement and outcome achievement in a behavioural intervention targeting sugar-sweetened beverage intake among rural adults.
机构信息
Department of Public Health Sciences, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA.
US Department of Agriculture, Agricultural Research Service, Stoneville, MS, USA.
出版信息
Public Health Nutr. 2020 Feb;23(3):554-563. doi: 10.1017/S1368980019003392. Epub 2019 Dec 4.
OBJECTIVE
To describe relationships among baseline characteristics, engagement indicators and outcomes for rural participants enrolled in SIPsmartER, a behavioural intervention targeting sugar-sweetened beverage (SSB) intake.
DESIGN
A secondary data analysis. Bivariate analyses determined relationships among baseline characteristics (e.g. age, gender, race, education, income), engagement indicators (completion of 6-month health screening, class attendance, call completion) and SSB outcomes (SSB ounce reduction (i.e. US fluid ounces; 1 US fl. oz = 29·57 ml), reduced ≥12 ounces, achieved ≤8 ounce intake). Generalized linear models tested for significant effects of baseline characteristics on engagement indicators and of baseline characteristics and engagement indicators on SSB outcomes.
SETTING
South-west Virginia, USA, a rural, medically underserved region.
PARTICIPANTS
Participants' (n 155) mean age was 41 years; most were female (81 %), White (91 %) and earned ≤$US 20 000 per annum (61 %).
RESULTS
All final models were significant. Engagement models predicted 12-17 % of variance, with age being a significant predictor in all three models. SSB outcome models explained 5-70 % of variance. Number of classes attended was a significant predictor of SSB ounce reduction (β = -6·12, P < 0·01). Baseline SSB intake significantly predicted SSB ounce reduction (β = -0·90, P < 0·001) and achieved ≤8 ounce intake (β = 0·98, P < 0·05).
CONCLUSIONS
The study identifies several participant baseline characteristics that may impact engagement in and outcomes from a community-based intervention targeting SSB intake. Findings suggest greater attendance of SIPsmartER classes is associated with greater reduction in overall SSB intake; yet engagement variables did not predict other outcomes. Findings will inform the future implementation of SIPsmartER and research studies of similar design and intent.
目的
描述参与 SIPsmartER 的农村参与者的基线特征、参与指标与结局之间的关系，SIPsmartER 是一项针对含糖饮料（SSB）摄入量的行为干预措施。
设计
二次数据分析。采用双变量分析确定基线特征（如年龄、性别、种族、教育程度、收入）、参与指标（完成 6 个月健康筛查、参加课程、完成电话随访）与 SSB 结局（SSB 盎司减少量（即美国液盎司；1 美国液盎司=29.57 毫升）、减少量≥12 盎司、摄入量达到≤8 盎司）之间的关系。采用广义线性模型检验基线特征对参与指标的显著影响，以及基线特征和参与指标对 SSB 结局的显著影响。
地点
美国西南部弗吉尼亚州，一个农村、医疗资源不足的地区。
参与者
参与者（n=155）的平均年龄为 41 岁；大多数为女性（81%）、白种人（91%）、年收入≤20000 美元（61%）。
结果
所有最终模型均有统计学意义。参与模型预测了 12-17%的方差，年龄在所有三个模型中均为显著预测因素。SSB 结局模型解释了 5-70%的方差。参加课程的次数是 SSB 盎司减少量的显著预测因素（β=-6.12，P<0.01）。基线 SSB 摄入量显著预测 SSB 盎司减少量（β=-0.90，P<0.001）和达到≤8 盎司摄入量（β=0.98，P<0.05）。
结论
本研究确定了一些可能影响基于社区的 SSB 摄入量干预措施的参与和结局的参与者基线特征。研究结果表明，SIPsmartER 课程的参与度越高，整体 SSB 摄入量的减少量越大；然而，参与变量并未预测其他结局。研究结果将为 SIPsmartER 的未来实施和类似设计及意向的研究提供信息。
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