Zhonghua Yu Fang Yi Xue Za Zhi
March 2013
Objective: To investigate total intake of drinking water of primary and middle school students in four cities of China, and to provide scientific evidence for developing standard of intake of drinking water for primary and middle school students in China.
Methods: A total of 5914 primary and middle school students were selected from Beijing, Shanghai, Chengdu and Guangzhou using multi-stage random sampling method and 5868 subjects completed the survey. The information on the amounts of daily drinking water was recorded for seven consecutive days using a 24 hour measurement.
Zhonghua Liu Xing Bing Xue Za Zhi
November 2006