[Study on the use of model life tables methodology in birth defect's life expectancy estimation: the case of Down's syndrome].

Using Brass-Logit model and life tables for general population and Down's syndrome patients in U.S.A and life tables for general population in China, we estimated the life table of Down's syndrome patients in China. Through comparing with data from other countries, we suggested that Brass-Logit Model Life Table could be adopted were minimum data of birth defects survival was available and systematic data was handy in another areas.