Incidence trend of gestational diabetes mellitus in Hangzhou from 2009 to 2018 / 预防医学

ABSTRACT

Objective @#To learn the incidence trend of gestational diabetes mellitus (GDM) among women of childbearing age in Hangzhou from 2009 to 2018, providing evidence for GDM prevention and control.@*Methods@#The information of GDM cases aged 15 to 49 years in Hangzhou from 2009 to 2018 was extracted from Zhejiang non-communicable diseases surveillance system. The crude and age-standardized (by national standard population in 2000) incidence rate of GDM were calculated, the annual change percentage (APC) and the average APC (AAPC) of GDM incidence rate were calculated to understand the trend of incidence in different age groups and areas. @*Results@#A total of 45 519 cases of GDM were reported in Hangzhou from 2009 to 2018. The crude and age-standardized incidence rates were 248.04/100 000 and 158.52/100 000, respectively, both showed upward trends with 59.7% and 56.4% in AAPC (both P<0.05). The APCs of crude and age-standardized incidence rates of GDM were 139.76% and 134.60% from 2009 to 2012, 30.35% and 27.65% from 2012 to 2018, which all had increasing trends (all P<0.05). There were upward trends in GDM incidence in each age groups of 15-24, 25-29, 30-34, 35-39 and 40-49 years old (all P<0.05). The AAPC of GDM incidence in 40-49 year-old women was 65.3% and ranked the first among all the age groups. The age-standardized incidence rate of GDM increased more in rural areas (AAPC=66.0%) than in urban areas (AAPC=53.4%). @*Conclusion@# A rising trend in GDM incidence among women aged 15-49 years in Hangzhou has been found in recent ten years, especially in women aged 40-49 years and lived in rural areas.