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运用ＰＹＬＬ统计方法对１９８８年至１９９７年成都市居民潜在寿命减少年数进行了分析。男、女性的寿命损失以损伤与中毒及肿瘤为高，此二者的ＰＹＬＬ占全死因ＰＹＬＬ的４０％以上，其中男性二者的ＰＹＬＬ占全死因超过了５０％，男性ＰＹＬＬ率（除心血管病外）均大于女性。男女性的ＰＹＬＬ率１９９３～１９９７年比１９８８～１９９２年均有所下降，这与成都市死亡率的下降及预期寿命的增长相一致。
The PYLL statistical method was used to analyze the years of reduced life expectancy of Chengdu residents from 1988 to 1997. Male and female life loss is higher with injury, poisoning and tumors. PYLL accounted for more than 40% of all deaths of PYLL. PYLL accounted for more than 50% of all male deaths and male PYLL rate (except for cardiovascular disease). Outside the disease) are greater than women. The male and female PYLL rates have declined from 1993 to 1997 compared to 1988 to 1992, which is consistent with the decline in Chengdu’s death rate and the increase in life expectancy.