我国四城市成年居民夏季水分摄入来源

目的 调查我国4个城市成年居民夏季每天水分来源情况.方法 采用方便抽样的方法选取北京、上海、成都、广州18～60岁居民64名,饮水量调查由调查对象利用定量用具,记录连续3 d的每天每次饮水量和饮水种类;食物水来源调查采用双份饭法进行样品收集,测定食品中的水分.结果 共有63名调查对象完成调查,每天水分摄入总量的中位数为3045 ml,其中饮水量中位数为1600 ml,饮水量占水分摄入总量比率的中位数为55.8%;食物水量的中位数为1157 ml,食物水量占水分摄入总量比率的中位数为41.4%.成都的水分摄入总量中位数(3566 ml)及食物水占水分摄入总量比率的中位数(55.3%)高于广州(2929 ml,45.4%)、上海(2748 ml,33.1%)和北京(2743 ml,31.3%),差异有统计学意义(水分摄入总量:χ2=10.42,P=0.015;食物水比率:χ2=28.48,P<0.01).男性每天水分摄入总量的中位数(3302 ml)高于女性(2900 ml),差异有统计学意义(Z=2.35,P=0.019).结论 调查对象夏季每天的水分摄入总量超过水分摄入建议量(2200 ml),主要来自于饮水和食物.

Abstract：

Objective To investigate the water intake sources of adults in the four cities of China in summer.Methods A total of 64 adults aged 18-60 yrs from the four cities(Beijing,Shanghai,Chengdu and Guangzhou) were selected using convenient sampling method.The information on amounts and types of daily drinking water was recorded by subjects for three consecutive days using a quantitative measurement.The food samples were collected by using duplicate portion method and the water content of food samples were determined.Results The median of daily total water intake of 63 subjects was 3045 ml,while daily total drinking water was 1600 ml,the median ratio of which accounting for 55.8% of total water intake.Water from food was 1157 ml,the median ratio of which accounting for 41.4% of total water intake.The median of daily total water intake (3566 ml) and the ratio of water from food (55.3%) of subjects in Chengdu was significantly higher than subjects in Guangzhou (2929 ml,45.4%),Shanghai (2748 ml,33.1%) and Beijing (2743 ml,31.3%) (daily total water intake: χ2=10.42,P=0.015;the proportion of water:χ2=28.48,P<0.01).Daily total water intake in men (3302 ml) was significantly higher than that in women (2900 ml) (Z=2.35,P=0.019).Conclusion Daily total water intake of subjects in summer was more than the current Chinese recommended total water intake (2200 ml),with the main part of drinking water and water from food.

Water intake sources analysis of adults in four cities of China in summer

Objective To investigate the water intake sources of adults in the four cities of China in summer.Methods A total of 64 adults aged 18-60 yrs from the four cities(Beijing,Shanghai,Chengdu and Guangzhou) were selected using convenient sampling method.The information on amounts and types of daily drinking water was recorded by subjects for three consecutive days using a quantitative measurement.The food samples were collected by using duplicate portion method and the water content of food samples were determined.Results The median of daily total water intake of 63 subjects was 3045 ml,while daily total drinking water was 1600 ml,the median ratio of which accounting for 55.8% of total water intake.Water from food was 1157 ml,the median ratio of which accounting for 41.4% of total water intake.The median of daily total water intake (3566 ml) and the ratio of water from food (55.3%) of subjects in Chengdu was significantly higher than subjects in Guangzhou (2929 ml,45.4%),Shanghai (2748 ml,33.1%) and Beijing (2743 ml,31.3%) (daily total water intake: χ2=10.42,P=0.015;the proportion of water:χ2=28.48,P<0.01).Daily total water intake in men (3302 ml) was significantly higher than that in women (2900 ml) (Z=2.35,P=0.019).Conclusion Daily total water intake of subjects in summer was more than the current Chinese recommended total water intake (2200 ml),with the main part of drinking water and water from food.