After age 35, anyone who is overweight should get a fasting blood glucose test; if the result is normal, repeat it every three years
Spending dozens of yuan for a single blood test can detect prediabetes even when there are no symptoms at all. The official screening recommendation in the United States is: people aged 35 to 70 who are overweight or obese should be tested. Those found to be normal should be retested every three years. In the United States, a Body Mass Index of 25 is considered overweight, which is lowered to 23 for people of Asian descent; the Chinese standard is 24 to be considered overweight.
A fasting blood glucose test costs just a few dozen yuan.…
The US Preventive Services Task Force is the official US body that issues screening recommendations. It curren…
A fasting blood glucose test costs just a few dozen yuan. Testing for glycated hemoglobin is a bit pricier, still only a few dozen yuan. All it takes is one blood draw at a clinic.
The US Preventive Services Task Force is the official US body that issues screening recommendations. It currently recommends screening adults aged 35–70 who are overweight or obese for prediabetes and type 2 diabetes, even if they have no symptoms. Overweight means a body mass index (BMI) ≥25 and obesity means ≥30. For Asian Americans, it recommends lowering the threshold to BMI ≥23 because their diabetes risk is higher at the same BMI. China’s industry standard classifies BMI 24.0 to 28.0 as overweight and ≥28.0 as obesity. This recommendation has grade B. It also states that screening every 3 years is reasonable for adults with normal blood glucose.
US Preventive Services Task Force (2021). Screening for Prediabetes and Type 2 Diabetes. https://www.uspreventiveservicestaskforce.org/uspstf/recommendation/screening-for-prediabetes-and-type-2-diabetes：「at a lower BMI (≥23) if the patient is Asian American」；国家卫生健康委办公厅 (2024). 居民体重管理核心知识（2024 年版）释义：「根据《成年人体重判定》（WS/T 428-2013）行业标准……24.0≤BMI＜28.0 为超重，BMI≥28.0 为肥胖」. https://www.gov.cn/zhengce/zhengceku/202407/P020240703481519509521.pdf；Wang L 等 (2021). Prevalence and Treatment of Diabetes in China, 2013-2018. JAMA：「In 2018, among adults with diabetes, 36.7% (95% CI, 34.7%-38.6%) reported being aware of their condition」「These rates did not change significantly from 2013.」https://doi.org/10.1001/jama.2021.22208
Open source linkA diagnosis of prediabetes does not automatically mean taking medication. Eating less, moving more, and losing some weight can reduce the risk of developing diabetes by 30–60%. In the 2018 nationwide survey, only 36.7% of adults with diabetes in China knew they had it, with no significant improvement from 2013. For the risk reduction, what to change after diagnosis, and when to repeat testing, see Section 2, Item 45 (prediabetes diagnosed).