Behavioral Risk Profile of Men Who Have Sex with Men in Beijing, China: Results from a Cross-sectional Survey with Randomized Response Techniques.

Background: Human immunodeficiency virus (HIV) is spreading rapidly among men who have sex with men (MSM) in China. Anonymous questionnaires or direct interviews have been frequently used to study their behavior. The aim of the study was to describe the behavioral risk profile of the MSM in Beijing using the randomized response techniques (RRTs).

[Cross-sectional investigation of prevalence of type 2 diabetes in Shanghai].

Objective: To investigate the prevalence of type 2 diabetes and impaired glucose regulation among the permanent urban and rural inhabitants in Shanghai.

Methods: Questionnaire survey, physical examination, and laboratory testing were conducted among 14401 urban and rural inhabitants aged 15 - 74 in Shanghai selected by multistage cluster random sampling. The data about the prevalence of type 2 diabetes and impaired glucose regulation were collected and analyzed.