Prevalence of Thyroid Nodules and Its Relationship with Iodine Status in Shanghai: a Population-based Study.

Objective: This study was designed to evaluate the prevalence of thyroid nodules (TNs) and its relationship with urine iodine concentrations (UICs) after the regional rapid economic growth and lifestyle changes.

Methods: A cross-sectional survey was conducted in the general population aged 15-69 years. A questionnaire regarding general and personal characteristics and relevant information was administered.

Drinking Behavior and Associated Factors among Middle School Students in Shanghai, China.

The purpose of our study was to assess drinking status in middle school students and to understand the associated factors. The adjusted drinking rates were 50.9%, 39.

[Water intake of primary and middle school students in four cities of China].

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.

[Water intake of adults in four cities of China in summer].

Objectives: To investigate total drinking water intake of adults in the four cities of China in summer.

Methods: A total of 1483 adults aged 18 - 60 yrs from Beijing, Shanghai, Chengdu and Guangzhou were selected using multiple-stage random sampling method. The information of amounts and types of daily drinking water was recorded by subjects for seven consecutive days using a quantitative measurement.