Objective To determine the prevalence of diabetes mellitus and related risk factors among residents in the urban and rural area of Chengdu.Methods A cluster sampling was used to establish a study population of inhabitants aged 30 to 70.Totally,1 847 participants were enrolled in this study.Questionnaire including general information and dietary information in the past year was used to collect related data.Height,body weight and oral glucose tolerance test (OGTT) were measured.Factor analysis was used to analyze the dietary pattern while multivariate unconditional logistic regression used for risk factors in total population,urban and rural residents,respectively.Results The population standardized prevalence rates of diabetes in the overall,urban and rural residents were 20.2％,28.7％,11.1％,respectively.Among total population,middle-aged (OR=2.337,95％CI:1.305-4.185) and the elderly (OR=5.990,95％ CI:3.389-10.586) residents had higher diabetes risk than the younger ones.Administrators (OR=1.434,95％ CI:1.000-2.057) and ordinary clerks (OR=2.870,95％ CI:1.653-4.980) were more vulnerable to diabetes than peasants.Similarly,middle-aged (OR=2.973,95％ CI:1.101-8.031) and elderly (OR=5.972,95％ CI:2.267-15.730) turned out to be more predisposed than young people in the urban area.Compared with peasants,ordinary clerks (OR=2.196,95％CI:1.213-3.975) seemed to be more liable to diabetes.In the mral areas,dietary pattern with higher energy and protein (OR=1.404,95％ CI:1.113-1.772) could be subject to diabetes.Conclusion The prevalence of diabetes in Chengdu was relatively high.Age,career and dietary pattern are mainly risk factors.The factors in different districts are vaious.Intervention on nutrition should be different,area-wise.

Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.