Cancer Incidence and Mortality in China,2007

Objective： Cancer incidence and mortality data collected from population-based cancer registries were analyzed to present the overall cancer statistics in Chinese registration areas by age, sex and geographic area in 2007. Methods： In 2010, 48 cancer registries reported cancer incidence and mortality data of 2007 to National Central Cancer Registry of China. Of them, 38 registries＇ data met the national criteria. Incidence and mortality were calculated by cancer sites, age, gender, and area. Age-standardized rates were described by China and World population. Results： The crude incidence rate for all cancers was 276.16/100,000 （305.22/100,000 for male and 246.46/100,000 for female; 284.71/100,000 in urban and 251.07/100,000 in rural）. Age-standardized incidence rates by China and World population were 145.39/100,000 and 189.46/100,000 respectively. The crude mortality rate for all cancers was 177.09/100,000 （219.15/100,000 for male and 134.10/100,000 for female; 173.55/100,000 in urban and 187.49/100,000 in rural）. Age-standardized mortality rates by China and World population were 86.06/100,000 and 116.46/100,000, respectively. The top 10 most frequently common cancer sites were the lung, stomach, colon and rectum, liver, breast, esophagus, pancreas, bladder, brain and lymphoma, accounting for 76.12% of the total cancer cases. The top 10 causes of cancer death were cancers of the lung, liver, stomach, esophagus, colon and rectum, pancreas, breast, leukemia, brain and lymphoma, accounting for 84.37% of the total cancer deaths. Conclusion： Cancer remains a major disease threatening people＇s health in China. Prevention and control should be enhanced, especially for the main cancers.

Cancer Incidence And Mortality in China,2006

Objective：To describe the cancer incidence and mortality rates in 2006 and evaluate the cancer burden in China.Methods：Cancer registration data in 2006 from 34 cancer registries were collected,evaluated and pooled to calculate cancer incidence and mortality rates.The data analyses included mortality to incidence ratio（MI）,morphological verification percentage（MV%） and proportion of death certification only（DCO%）.Cumulative incidence and mortality rates were calculated using crude data,age-standardized data,and specific data for cancer site,age,sex and area（urban or rural）.Results：In 2006,34 registries with qualified registration data covered a total population of 59,567,322（46,558,108 in urban areas and 13,009,214 in rural areas）.The crude and age-standardized cancer incidence rates were 273.66 per 100,000 and 190.54 per 100,000,respectively.The crude and age-standardized cancer mortality rates were 175.70 per 100,000 and 117.67 per 100,000,respectively.Cancers of lung,stomach,colon and rectum,liver,and breast in female were the five most common forms of cancer in China,which accounted for 58.99% of all new cancer cases.Lung cancer was the leading cause of cancer death,followed by stomach cancer,liver cancer,esophageal cancer and colorectal cancer.Conclusion：Cancer is still an important public health issue in China with an increasing disease burden.Specifically,the incidence rates for lung cancer,colorectal cancer and breast cancer were increasing,but those for stomach cancer and esophageal cancer were decreasing.However,age-specific incidence rate remained stable,indicating that the aging population was the major source of the increasing cancer burden.