Importance Of Cancer Research Articles

Cancer Mortality, Aging, and Patterns of Comorbidity in the United States: 1968 to 1986

Cancer is often reported as contributing to the risk of noncancer causes of death. The age variation of these reports was studied using U.S. data on all causes of death listed on death certificates for 1968 to 1986. The occurrence of cancer as a nonunderlying cause of death increased with age and was higher for treatable and slowly growing tumor types. These patterns persisted even if the cancer manifested changes in occurrence. Nonunderlying occurrences were highest in the 85 to 94 age group and were correlated with cancer survival. This suggests increased importance of cancer as a cause of death and a comorbid condition among oldest-old persons. The high rate of occurrence as an associated cause of death suggests that if life expectancy increases due to declines in circulatory and other chronic disease mortality, cancer could become the preeminent cause of death in the United States.

Geographical aspects of cancer incidence in Southeast Asia.

Abstract Based on limited information for incidence and mortality from one population based registry (Singapore) and a number of hospital registries there are important differences in cancer incidence between Southeast Asian countries. Cancers of the oral cavity, pharynx, and liver have high incidence throughout the region; cancer of the nasopharynx in Chinese. Cancers of the oesophagus and stomach have high relative incidence in Burma and in Singapore, and cancer of the lung in Singapore. Cancer of the uterine cervix is the most important female cancer in the region except in the Philippines and Singapore. Cancer of the breast has its highest Southeast Asian incidence in the Philippines and its lowest in Singapore. The importance of cancer as a cause of illness and death is increasing in Southeast Asia as a function of its changing age structure and the continued improvement in conditions that extend life expectancy and suppress communicable diseases.