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高糖零食价格上涨20%对肥胖的影响
作者:小柯机器人 发布时间:2019/9/6 10:07:03

英国伦敦卫生与热带医学院Pauline F D Scheelbeek研究团队近日取得一项新成果。他们研究了英国高糖零食价格上涨20%对肥胖患病率的潜在影响。相关论文2019年9月4日在线发表在《英国医学杂志》上。

在过去的几十年里,肥胖症的患病率急剧上升,从1975年到2016年,全球肥胖率翻了三倍。高糖膳食会增加肥胖和糖尿病的风险。为此,研究人员评估了高糖零食价格上涨20%对身体质量指数(BMI)和肥胖患病率的潜在影响。

参与调查的研究对象为英国的成年人口,共36324户家庭。使用他们在2012年1月—2013年12月的快消品账单作为数据,来预估高糖食品价格上涨20%对购买物的能量(千卡)的影响。2544名接受国家饮食和营养调查的成年人的数据用于评估BMI和肥胖率的变化。研究结果按家庭收入和BMI进行分层。

综合考虑各个收入群体,高糖零食价格上涨20%,平均减少的能量为8.9×103千卡。使用静态减重模型,预计所有人群的BMI平均下降0.53。这将在一年后使英国的肥胖率降低2.7个百分点。高糖零食价格上涨20%对低收入、肥胖的家庭能量购买的影响最大,对高收入、不超重的家庭影响最小。

综上,将高糖零食的价格上涨20%,可以限制能量摄入、降低BMI、减少肥胖率。

附:英文原文

Title: Potential impact on prevalence of obesity in the UK of a 20% price increase in high sugar snacks: modelling study

Author: Pauline F D Scheelbeek, Laura Cornelsen, Theresa M Marteau, Susan A Jebb, Richard D Smith

Issue&Volume: 4 September 2019

Abstract:

Objective To estimate the potential impact on body mass index (BMI) and prevalence of obesity of a 20% price increase in high sugar snacks.

Design Modelling study.

Setting General adult population of the United Kingdom.

Participants 36 324 households with data on product level household expenditure from UK Kantar FMCG (fast moving consumer goods) panel for January 2012 to December 2013. Data were used to estimate changes in energy (kcal, 1 kcal=4.18 kJ=0.00418 MJ) purchase associated with a 20% price increase in high sugar snacks. Data for 2544 adults from waves 5 to 8 of the National Diet and Nutrition Survey (2012-16) were used to estimate resulting changes in BMI and prevalence of obesity.

Main outcome measures The effect on per person take home energy purchases of a 20% price increase for three categories of high sugar snacks: confectionery (including chocolate), biscuits, and cakes. Health outcomes resulting from the price increase were measured as changes in weight, BMI (not overweight (BMI <25), overweight (BMI ≥25 and <30), and obese (BMI ≥30)), and prevalence of obesity. Results were stratified by household income and BMI.

Results For income groups combined, the average reduction in energy consumption for a 20% price increase in high sugar snacks was estimated to be 8.9×103 kcal (95% confidence interval −13.1×103 to −4.2×103 kcal). Using a static weight loss model, BMI was estimated to decrease by 0.53 (95% confidence interval −1.01 to −0.06) on average across all categories and income groups. This change could reduce the UK prevalence of obesity by 2.7 percentage points (95% confidence interval −3.7 to −1.7 percentage points) after one year. The impact of a 20% price increase in high sugar snacks on energy purchase was largest in low income households classified as obese and smallest in high income households classified as not overweight.

Conclusions Increasing the price of high sugar snacks by 20% could reduce energy intake, BMI, and prevalence of obesity. This finding was in a UK context and was double that modelled for a similar price increase in sugar sweetened beverages.

DOI: 10.1136/bmj.l4786

Source: https://www.bmj.com/content/366/bmj.l4786

期刊信息

BMJ-British Medical Journal:《英国医学杂志》,创刊于1840年。隶属于BMJ出版集团,最新IF:27.604
官方网址:http://www.bmj.com/
投稿链接:https://mc.manuscriptcentral.com/bmj