受低出生率及低死亡率的影响,日本65岁以上的老年人口比例从60年代开始急剧上升,1985年后上升更加明显,预计2000年将达到16%,2020年将达到24%。就是说,老年人约占社会人口的1/4。伴随着高龄化的进行,很多问题也随之出现:1.有病率、死亡率上升;2.慢性疾病患 Affected by the low birth rate and low mortality rate, the proportion of elderly people aged over 65 in Japan has risen sharply since the 1960s, and has risen even more significantly since 1985. It is expected to reach 16% in 2000 and 24% in 2020. That is to say, the elderly account for about 1/4 of the social population. With the progress of aging, many problems have also emerged: 1. The prevalence and mortality rate increase; 2. The chronic diseases suffer from