Department of Public Health, Erasmus University Medical Center, PO Box 2040, 3000 CA Rotterdam, The Netherlands.
Br J Nutr. 2010 Mar;103(5):768-74. doi: 10.1017/S0007114509992297. Epub 2009 Dec 14.
Sugar-sweetened beverage (SSB) consumption may increase risk for unnecessary weight gain. To develop interventions discouraging consumption, more insight is needed about cognitive and environmental predictors related to the decrease in SSB consumption. The present paper aims (1) to describe the relationship between potential cognitive determinants of change (attitudes, subjective norms, perceived behavioural control and intentions) and perceived environmental factors (family food rule and home availability of SSB) with changes in SSB consumption between baseline and 4-month follow-up and (2) to study whether the relationships between the environmental factors and SSB consumption are mediated by the cognitive determinants. Information on possible predictors and SSB intake at baseline and 4-month follow-up was provided by 348 Dutch adolescents (aged 12-13 years) through online questionnaires that were completed at school. Multilevel logistic regression and mediation analyses were used to determine direct and indirect associations between predictors and behaviour. The present results show that a high perceived behavioural control to decrease intake at baseline was associated with a decrease in consumption of SSB between baseline and follow-up (OR = 0.53). Low availability and a stricter family food rule were associated with a decrease in SSB consumption between baseline and follow-up (OR = 2.39, 0.54). The association between availability and decrease in SSB consumption was for 68 % mediated by perceived behavioural control to drink less. In conclusion, interventions to decrease SSB intake should focus on improving attitudes and perceived behavioural control to reduce intake, and on limiting home availability and stimulating stricter family food rules regarding SSB consumption.
含糖饮料（SSB）的摄入可能会增加不必要的体重增加的风险。为了开发劝阻消费的干预措施，需要更多地了解与 SSB 消费减少相关的认知和环境预测因素。本文旨在：（1）描述潜在认知变化决定因素（态度、主观规范、感知行为控制和意图）与感知环境因素（家庭食物规则和 SSB 的家庭供应）与 SSB 消费在基线和 4 个月随访之间的变化之间的关系；（2）研究环境因素与 SSB 消费之间的关系是否通过认知决定因素来调节。通过在线问卷在学校完成，为 348 名荷兰青少年（年龄在 12-13 岁之间）提供了有关可能的预测因素和 SSB 摄入量的基线和 4 个月随访的信息。使用多层次逻辑回归和中介分析来确定预测因素与行为之间的直接和间接关联。本研究结果表明，基线时感知行为控制降低摄入量高与 SSB 摄入从基线到随访期间的减少有关（OR=0.53）。低供应和更严格的家庭食物规则与 SSB 摄入从基线到随访期间的减少有关（OR=2.39，0.54）。供应与 SSB 消费减少之间的关联有 68%是通过减少摄入的感知行为控制来调节的。总之，减少 SSB 摄入量的干预措施应侧重于改善态度和减少摄入的感知行为控制，以及限制家庭供应和刺激更严格的家庭 SSB 消费规则。
