[Changes of dietary pattern among adults in Liaoning province, 1989 to 2006].

Objective: To study the changes of dietary pattern among adult residents in different areas of Liaoning province from 1989 to 2006.

Methods: Healthy adults (6213 subjects) at age of 18 - 65 years from 480 households in three cities (Shenyang, Yingkou, Wafangdian) and three counties (Qingyuan, Huanren, Chaoyang) were selected with stratified multiple cluster random sampling. The information on nutrient intake of the subjects were collected from datasets of Chinese Health and Nutrition Survey conducted in 1989, 1991, 1993, 2000, 2004, and 2006.

Body iron stores and dietary iron intake in relation to diabetes in adults in North China.

Objective: To evaluate the association between body iron stores, dietary iron intake, and risk of diabetes in northern China.

Research Design And Methods: The data of a cross-sectional household survey in 2002 in Liaoning Province in northern China was used. The final sample in our study contained 2,997 subjects aged >or=18 years.

[The prevalence of body overweight and obesity and its changes among Chinese people during 1992 to 2002].

Objective: To describe the prevalence of body overweight and obesity and its changes among Chinese people during 1992-2002, and to provide scientific basis for developing intervention strategies for obesity in China.

Methods: The data from "1992 China third National Nutrition Survey" (78,704 subjects, 38,323 male and 40,381 female) and from "2002 China National Nutrition and Health Survey" (209,849 subjects, 101,377 male and 108,472 female) were used in this study. The overweight and obesity were defined by using WHO Z-score criteria for children younger than 7 years old, Chinese age-, sex-specific BMI criteria for children aged 7-17 years, and Chinese BMI criteria for adults.