Administrative divisions of China By its political level, when a "city" is referred to, it can be a: By its actual area and population, it can be: When used in the statistical data, the word "city" may have three different meanings: It is important to specify the definition of "city" when referring to statistical data of Chinese cities, otherwise, confusion may arise. For example, Shanghai is the largest city in China by population in the urban area but is smaller than Chongqing by the population within the administration area. Before the establishment of the Qin Dynasty, China was ruled by a network of kings,
Cardiovascular disease in China difficulties in ascertaining cause of death in places where 90% die without seeing a doctor. Therefore, there is a need to ascertain the real incidence and prevalence of heart disease and to develop adequate preventive and primary care in the Chinese countryside. Stroke is the largest cardiovascular killer in China at about 40% of total mortality in 2007 (approx. 280 per 100 000) Cardiovascular disease in China Cardiac disease in China is on the rise. Though incidences of heart disease have increased faster in the city than in the countryside, rural morbidity and mortality rates are now on the rise