Objective: To investigate the constitution and health status of the Beijing residents, and the primary influencing factors on nutrition and health, as to finding out the epidemiological characters and the changing trend of chronic diseases and to establish scientific basis for the establishment of public health and disease prevention policies of Beijing.
Methods: A stratified multi-stage cluster randomly sampling method was used. In total, 18 districts were surveyed, and among them, 9 were conducted dietary survey. The investigation was based on household, and all family members were surveyed at their home. After having got the compliance from the family members, question asking, medical examination, laboratory test and dietary investigation were carried out in these people.
Results: The incidence rate of hypertension was 25.0% for the resident > or = 15 year-old, and over 50% for middle-aged and elderly people (> or = 45 years old). The incidence of diabetes for those not younger than 15 years old was 7.7%. The over-weight rate and the obesity rate for adults were 35.1% and 20.6%, respectively.
Conclusion: The following risk factors of chronic disease, such as unreasonable diet pattern, deficient intake of some micronutrients, over-weight and obesity, lack of physical examination, smoking and over-drinking, should be the important factors influencing the health of Beijing residents severely.