Cancer Life Expectancy
Cancer life expectancy is the prime concern of most of the cancer patients worldwide. It is an indicator of the minimum chances of survival of a patient after getting diagnosed for cancer and may vary from person to person. Life expectancy may be different for different stages of cancer and is highest in the first or initial stages.
Significance of cancer life expectancy
Life expectancy is very useful for cancer research as it takes a wide number of factors into consideration and increases the scope of research. Data collected in calculating life expectancy is based on empirical research and is derived using life expectancy calculators. Cancer cases are on the rise and people suffering from various types of cancers are finding it hard to tackle the disease right in the developmental stages.
Cancer treatments are usually harsh and the side effects they cause to patients are quite severe. Life expectancy can be very helpful for such patients to know the approximate status of the disease and the chances of curing the tumors. Life expectancy calculations also provide valuable data for finding out cancer survival rate and cancer prognosis. The pattern of treatment to be followed depends mostly upon the life expectancy as there is no use in recommending a harsh treatment if the chances of survival are low. Similarly, the case where the chances of survival and possibilities of eliminating tumors are quite high, a severe treatment can be recommended.
Dimensions of cancer life expectancy
Life expectancy calculations depend upon a variety of factors and are based on consistent research and breakthroughs for cancer.
Age is the foremost factor to be considered for calculating life expectancy. Cancer occurs mainly in adults and is more prone in people above 45 years. Thus, the life expectancy gradually decreases with an increase in age. Chances of complete elimination of cancer tumors are almost 100% if the cancer cells are detected in younger people and that too in the initial or developmental stages. Health complications increase with age and thus, the chances of complete elimination of malignant tumors considerably decrease. Also, the incidences of cancer recurrence are quite high in old age. Thus, this factor is necessary to be considered while calculating life expectancy.
Human papillomavirus (HPV) has been one of the major causes of cancerous development in the body and is detected in most of the patients suffering from cancer irrespective of the form and point of origin of cancerous development. The disease is caused mainly due to unsafe sex practices and leads to weakening the overall immune system of the patient's body. Hence, the person becomes more vulnerable to frequent infections and cancerous attack thus, leading to decrease in life expectancy rate.
Family history of cancer can put a person at risk as the disease is hereditary and may transfer from one generation to another. The life expectancy of a person also depends upon his genetic patterns and such family history may seriously affect his survival rate in case he suffers from cancerous attack.
Cancer stages also play an important role in deciding the life expectancy of cancer. According to studies, the rate of survival is highest in the initial stages and decreases considerably with an increase in intensity of the cancerous cells. Fourth stage is usually considered as the final stage of cancer in which the cells are capable to metastasize and grow rapidly and the chances of eliminating the cancer cells in this stage are almost negligible. Thus, the life expectancy rate is the lowest in this stage.
Cancer life expectancy is usually calculated considering the death rate based on age. Gompertz function is the most common method used to calculate life expectancy though many sophisticated methods have been designed to make the calculations more accurate and reliable. Breast cancer is the most curable form of cancer in females while prostate cancer is the most curable type in males. Lung cancer is the most common cause of cancer-deaths followed by stomach, colorectal, liver and breast cancer.