深圳市某区居民摄入水分来源的分析

THE SOURCE OF WATER INTAKE IN THE RESIDENTS IN ONE DISTRICT OF SHENZHEN

目的分析深圳某区成年居民水分的来源情况。方法采用方便抽样的方法选取深圳市某区18-60岁居民共16名,饮水来源调查由调查对象利用定量用具对连续3d每天每次的饮水量进行估计,并记录每次饮水量和种类,饮水总量为白水、茶水、饮料和酒的饮用量之和;食物水来源调查采用双份饭法进行样品收集,用国标方法（GB/T 5009.3-2003）测定食品中的水分。结果调查对象水分摄入总量中位数为2 676ml/d,其中饮水总量中位数为1 567ml/d（占68.6%）,食物来源水量中位数为816ml/d（占31.4%）。调查对象白水、茶水、饮料的饮用量中位数分别为908ml/d、80ml/d、161ml/d,男性茶水及饮料饮用量有高于女性的趋势,而白水饮用量有低于女性的趋势,但差异无统计学意义。食物水为主食、菜类、零食和清汤来源之和,其中位数分别为340ml/d（占食物水的44.5%）、320ml/d（占39.0%）、0（占3.4%）和78ml/d（占13.2%）。男性从主食和汤中摄入的水分比例有高于女性的趋势,而从菜和零食中摄入的水分比例有低于女性的趋势,但差异无统计学意义。结论深圳某区成年居民水分摄入以饮水为主约占2/3;食物水约占1/3,食物来源水以主食和菜为主。

Objective To understand the source of water intake in residents aged 18-60 yrs in one district of Shenzhen,China.Method Sixteen adults aged 18-60 yrs were selected using convenient sampling method.The information on amounts and types of daily drinking water was recorded quantitatively by subjects for three consecutive days（including one weekend day）.The total amount of drinking water was the sum of plain water,tea,beverages and alcohol.The food samples were collected by using duplicate portion method and their water content was determined by GB/T 5009.3-2003.Results The median of total water intake of subjects was 2676 ml/d,while the total drinking water intake was 1567 ml/d（accounted for 68.6%） and water from the foods was 816 ml/d（accounted for 31.4%）.The median of drinking water,tea and beverages was 908 ml/d,80 ml/d and 161 ml/d respectively,and the consumption of tea and beverage in men was higher than that in women,but drinking water was lower（P〉0.05）.Water from food included staple,dishes,snack and soup（340 ml/d,320 ml/d,0 and 78 ml/d respectively）,which accounted for 44.5%,39.0%,3.4%,13.2% respectively.Intake from of staple and soup in men was higher than that in women,but lower from dishes and snack（P〉0.05）.Conclusion The total drinking water approximately accounted for 2/3 of the total water intake,and the water from food approximately accounted for 1/3.