Strauss D, Eyman R K
Department of Statistics, University of California, Riverside 92521, USA.
Am J Ment Retard. 1996 May;100(6):643-53.
Mortality of people with mental retardation receiving services in California was examined. The large population (N = 118,653) enabled us to work directly with mortality rates at specific ages. Up to about age 35, mortality rates of people with Down syndrome were comparable to those of people with mental retardation due to other causes. Subsequently, the increase was much more rapid in the group with Down syndrome. Mortality rates of individuals with Down syndrome doubled every 6.4 years compared to 9.6 years for people without Down syndrome. Life tables were constructed; the remaining life expectancy of a 1-year-old child with Down syndrome with mild/moderate retardation was 55 years and with profound mental retardation, 43 years.
对在加利福尼亚州接受服务的智力障碍者的死亡率进行了研究。庞大的人口数量（N = 118,653）使我们能够直接研究特定年龄段的死亡率。在大约35岁之前，唐氏综合征患者的死亡率与其他原因导致的智力障碍者相当。随后，唐氏综合征患者组的死亡率增长更为迅速。唐氏综合征患者的死亡率每6.4年翻一番，而无唐氏综合征者为每9.6年翻一番。构建了生命表；患有轻度/中度智力障碍的1岁唐氏综合征儿童的剩余预期寿命为55岁，而患有重度智力障碍的为43岁。
