Abstract: ObjectiveTo investigate the time trend of mortality from diabetes in the residents of Dalian city and to provide a scientific basis for the control of diabetes.MethodsMortality data of residents in Dalian city from 1981 to 2013 were collected and analyzed;mortality rate(MR),crude death rate(CDR),age-adjusted mortality rate(AAM),and annual percent change(APC)were calculated.ResultsFrom 1981 to 2013,the CDR of diabetes ranged from 5.41/100 000 to 40.59/100 000 and showed an obvious increase tendency during the period(χ_trend²=3 178.60,P<0.01),with an APC of 4.50(t=7.35,P<0.01).The AAM ranged from 6.77/100 000 to 29.54/100 000 and also showed an increase tendency(χ_trend²=1 083 991.10,P<0.01),with an APC of 0.40(t=0.50,P>0.05).During the period,the proportion of death due to diabetes fluctuated from 1.08%to 6.33%,with an increase trend(χ²=2 286.19,P<0.01),and had became the fifth cause of death in Dalian since 2006.From 1981 to 2013,the diabetes CDR ranged from 4.02/100 000 to 33.14/100 000 and 5.08/100 000 to 23.33/100 000 and the diabetes AAM from 6.39/100 000 to 48.16/100 000 and 8.03/100,000 to 36.17/100 000 for male and female residents,respectively,and both CDR and AAM showed an increase tendency(P<0.01 for all).Meanwhile,the CDR of diabetes increased with the age(χ_trend²=117 741.00,P<0.01),with a low mortality among the residents aged<40 years and an obvious increased mortality for the residents at the age of 60 years and older.ConclusionThe mortality due to diabetes increases rapidly and has became a major cause of death among the residents in Dalian city.