RESUMO
Objective To study the influence of PYLL on life span of residents. Methods The reduce of potential life span in Kunshan residents from 1982～1999 was analysed between the male and female. Results The life span reduced significantly in injury, poisoning and c ancer, which accounted for over 56% of total causes o f death in PYLL, especially, over 60 % in male. PYLL rate in male was higher than that in female. PYLL rate in male a nd female (except brain blood vessel disease) from 1991～1999 was lower than tha t from 1982～1990. It was consistent with increasing of old age population pr oport ion and prolonging of expected life span in Kunshan residents year by year. Conclusions The reasons that causes to death of residents were injury a nd poisoning and cancer.
