目的 研究成都地区中老年人群体质量指数（BMI）及腹型肥胖对糖尿病患病率及空腹血糖水平的影响。 方法 2007年5月，采用随机抽样方法抽取50～80岁中老年人685人进行心血管危险因素调查，其男394人，女291人，年龄（63.3 ± 0.2）岁。 结果 成都地区中老年人群的超重和肥胖所占的比例较大（约44.3%），按BMI分组（BMI＜24 kg/m2；24 kg/ m2≤BMI＜28 kg/ m2；BMI≥28 kg/m2）的糖尿病患病率分别为14.0%、18.7%及23.3%，组间差异有统计学意义（P=0.031）。男女分别按腹型肥胖标准分组（男性切点=85 cm，女性切点=80 cm），男性糖尿病患病率在非腹型肥胖及腹型肥胖组分别为17.9%及18.7%组间差异无统计学意义（P=0.849），女性糖尿病患病率分别为9.7%及18.4%，组间差异有统计学意义（P=0.034）。整个人群中，空腹血糖无随BMI增加而升高的趋势（P=0.071）；女性人群中，空腹血糖随腰围的增加而升高（P=0.001）；而在男性人群中无此趋势。在调整相关指标后，logistic回归分析提示BMI对糖尿病患病率独立影响，以BMI正常为参照，超重及肥胖的OR值分别为：1.412 [95%CI （0.818，2.437），P=0.215]及2.200 [95%CI（1.034，5.178），P=0.046]。在调整相关指标后，腹型肥胖在女性人群中对糖尿病患病率独立影响，以非腹型肥胖为参考，腹型肥胖的OR值为：1.394 [95%CI（1.080，3.205），P=0.041]，而在男性人群中无此关系。 结论 成都地区中老年人群超重及肥胖所占的比重较大，BMI可影响糖尿病患病率及空腹血糖水平；腹型肥胖能够影响女性人群糖尿病患病率及空腹血糖水平，但在男性人群中无此关系。
Objective To explore the relationship between preoperative fasting plasma glucose (FPG) and postoperative pulmonary complications (PPCs) in type 2 diabetic patients undergoing elective thoracoscopic lung resection, and provide a reference for prediction and prevention of PPCs in the clinic. Methods A retrospective analysis was performed on the type 2 diabetic patients who underwent elective thoracoscopic lung resection for the first time in our hospital from January 2017 to March 2021. According to the level of FPG one day before the operation, the patients were divided into three groups: a hypoglycemia group (<6.1 mmol/L), a medium level blood glucose group (≥6.1 mmol/L and <8.0 mmol/L) and a high blood glucose group (≥8.0 mmol/L). Besides, the patients were divided into a PPCs group and a non-PPCs group according to whether PPCs occurred. The risk factors for PPCs were analyzed by logistic regression analysis, and the predictive value of preoperative FPG level on PPCs was estimated by the area under the receiver operating characteristic curve (AUC). Results A total of 130 patients were included, including 75 (57.7%) males and 55 (42.3%) females with an average age of 63.5±9.0 years. Logistic regression analysis showed that compared to non-PPCs patients, the level of preoperative FPG (P=0.023) and smoking history ratio (P=0.036) were higher and the operation time was longer (P=0.004) in the PPCs patients. High FPG level on preoperative day 1 and longer operation time were associated with PPCs risk. Besides, the preoperative FPG of 6.79 mmol/L was the threshold value to predict the occurrence of PPCs [AUC=0.653, 95%CI (0.559, 0.747), P=0.003]. Conclusion There is a certain correlation between preoperative FPG level and postoperative PPCs, which may be used as an index to predict the occurrence of PPCs.