Objective To evaluate and compare the trends of major chronic diseases in urban and rural Beijing areas during 2007–2009.
Methods During July–August in 2007 and 2009, a cross-sectional survey of stratified cluster sampling was conducted respectively among 10002 and 7421 permanent residents over 18 years old in 4 Beijing districts. The surveying method included questionnaire, physical examination and laboratory testing.
Results Within the 2-year period, the prevalence of hyperlipidaemia, hypertension and diabetes in urban and rural Beijing populations increased by 2.32%, 7.75% and 2.59% respectively. The awareness rate increased by 5.55%, 1.5% and 9.36% respectively. Except for a decline of 3.32% for hyperlipidaemia, the treatment rate increased by 2.77% and 8.61% respectively. The control rate had not a marked increase, but there was a declining trend of 1.22%, −4.54% and 0.67% respectively. Within the last 2 years, mean total cholesterol decreased by 0.302 mmol/l, mean low-density lipoprotein and mean body mass index increased by 0.419 mmol/l and 0.455 kg/m2 respectively. The increment was higher in females than males. The smoking rate declined by a percentage of 1.73. The prevalence of lower extremity atherosclerosis increased from 4.65% to 11.0%. With a fourfold increment in rural population, it was higher in females than males. The total prevalence of coronary heart disease and stroke didn't made any changes within 2 years. But there were difference and change patterns about the prevalence of CHD and stroke between urban and rural areas.
Conclusion There has been an upward trend in the prevalence of major chronic diseases in urban and rural Beijing residents over the last 2 years. With a low control rate, the urban population has a higher prevalence than the rural counterpart. Besides education promotion, the intervention efforts for chronic diseases in Beijing urban and rural areas should be strengthened.