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随着社会的发展,科学技术的进步和医药卫生水平的提高,人类的寿命不断在延长,老年人在人口中所占比例近30年迅速提高.目前我国60岁和60岁以上的老年人据推算约有8千万,占总人口8%左右.恶性肿瘤是一类严重威胁人类健康和生命的常见疾病.人的一生中任何年龄都可以患肿瘤,就大多数肿瘤来说,随年龄的增长,发生肿瘤的危险性增大,40岁以后这种趋势更为明显.
With the development of society, the advancement of science and technology, and the improvement of the level of medical and health care, the life expectancy of human beings is continuously increasing, and the proportion of the elderly in the population has rapidly increased in the past 30 years. At present, the elderly aged 60 and over in China are It is estimated that there are 80 million people, accounting for about 8% of the total population. Malignant tumors are a common disease that seriously threatens human health and life. People can suffer from tumors at any age in their lives. For most tumors, with age With growth, the risk of developing tumors increases, and this tendency becomes even more pronounced after age 40.