Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China.
Medical Informatics Center, Peking University, Beijing, China.
Diabet Med. 2021 Sep;38(9):e14487. doi: 10.1111/dme.14487. Epub 2021 Jan 17.
To describe secular trends in diagnosed type 2 diabetes prevalence and incidence in Beijing, China.
Using health insurance claims for 17.7 million adults ≥20 years in 2008-2017, we identified people with diabetes using hospital diagnoses and drug prescriptions. Results were age-standardised using data for Beijing from China's 2010 census. Trends in prevalence and incidence were analysed using Joinpoint regression analysis.
From 2008 to 2017, we identified 2,104,159 people diagnosed with type 2 diabetes. Type 2 diabetes prevalence increased from 3.7% [95% CI: (3.6, 3.8)] to 6.6% (6.4, 6.7), but the annual rate of increase slowed from 18.1% (14.4, 22.0) to 1.5% (0.8, 2.2) before and after 2011 respectively. Women had a higher diabetes prevalence than men, for all years. The yearly increase in prevalence was greater in people younger than 40 years, with an average annual percentage change of 13.6% (10.7, 16.5) compared to 6.5% (5.6, 7.4) in those over 40 years. Over the 10 years, the overall incidence decreased from 24.3 (24.2, 24.4) to 11.5 (11.5, 11.6) per 1000 person-years, but it increased in people younger than 40 years. The average age at diabetes diagnosis dropped from 62 to 56 years (p < 0.001). Among incident cases of diabetes, the percentage of people under 40 years increased from 3.0% to 10.9% (p < 0.001).
The prevalence of diagnosed type 2 diabetes in Beijing increased continuously over the 10 years, the incidence decreased, except in people under 40 years. Continuous efforts are needed to prevent diabetes in China.
描述中国北京 2 型糖尿病的诊断患病率和发病率的长期变化趋势。
我们使用了 2008-2017 年期间 1770 万≥20 岁成年人的健康保险索赔数据，通过医院诊断和药物处方确定糖尿病患者。使用中国 2010 年人口普查的北京数据对结果进行年龄标准化。使用 Joinpoint 回归分析分析患病率和发病率的趋势。
2008 年至 2017 年，我们共确定了 2104159 例 2 型糖尿病患者。2 型糖尿病的患病率从 3.7%（95%CI：3.6，3.8）上升至 6.6%（6.4，6.7），但 2011 年前和后每年的增长率分别从 18.1%（14.4，22.0）降至 1.5%（0.8，2.2）。所有年份女性的糖尿病患病率均高于男性。40 岁以下人群的患病率增长较快，平均年增长率为 13.6%（10.7，16.5），而 40 岁以上人群的增长率为 6.5%（5.6，7.4）。在 10 年间，总体发病率从 24.3（24.2，24.4）降至 11.5（11.5，11.6）/1000 人年，但在 40 岁以下人群中有所增加。糖尿病诊断的平均年龄从 62 岁降至 56 岁（p<0.001）。在新发糖尿病患者中，40 岁以下人群的比例从 3.0%增加到 10.9%（p<0.001）。
北京 2 型糖尿病的诊断患病率在 10 年间持续上升，发病率除 40 岁以下人群外均下降。中国需要继续努力预防糖尿病。
