摘要目的：了解RT-CGM血糖显示值的准确性及不同时间窗显示血糖值与指尖血糖值的相关性。方法采用便携式血糖仪测定糖尿病患者三餐前后及睡前指尖血糖值并与同时刻0 min、测后10 min、20 min、30 min不同时间窗RT-CGM血糖显示值比较，分析二者相关性。结果便携式血糖仪指尖血糖值与同时刻0 min、测后10 min、20 min、30 min不同时间窗RT-CGM显示值差异均无统计学意义（P＞0．05），且均有较高相关性，其中便携式血糖仪指尖血糖值与测后20 min时RT-CGM显示值相关性最高。结论 RT-CGM作为临床血糖管理的可靠工具，是临床医护人员了解血糖趋势的有效工具，应充分应用其预警功能，弱化其观察即刻血糖值的性能。

abstractsObjective To understand the correlation between RT-CGM at different time-window and portable blood glucose meter in the blood sugar value .Methods We observed the diabetes patients′the portable blood glucose meter:before and after meals and bedtime , as well as RT-CGM display value in different time-window:at the same time as meter blood glucose (0 minute), 10 minutes after, 20 minutes after, 30 minutes after, and analyzed the correlation of them .Results The portable blood glucose meter with RT-CGM display value at different time-window had no statistical difference , and all had high correlation .The portable blood glucose meter showed the highest correlation with RT-CGM value after 20 minutes.Conclusions RT-CGM as a reliable tool for clinical blood sugar management , is an effective way for clinical medical staff to know the trends of blood sugar , which should be fully applied its warning function , weaken its observing the performance of the immediate blood sugar levels .