title: [Correlation of real-time continuous monitoring system with venous glucose and capillary glucose values].
abstract: OBJECTIVE
  To study the correlation of real-time continuous monitoring system (RT-CGMS) with venous glucose and capillary glucose values.
  
  
  METHODS
  A total of 33 diabetics received RT-CGMS for 5 days. Fasting venous glucose values were measured at Days 1, 3 and 5 and capillary glucose values recorded 7 times daily. The methods of correlation coefficient, error grid analysis (EGA) and Bland-Altman analysis were employed to assessed the correlation, accuracy and agreement of RT-CGMS with venous glucose and capillary glucose values respectively. The mean amplitude of glucose excursions (MAGE) was calculated during RT-CGMS testing periods.
  
  
  RESULTS
  (1) The correlation coefficient of RT-CGMS with vein glucose and capillary glucose values were 0.936, 0.933 (P < 0.01); (2) The analysis results of EGA showed that 98.67%, 98.64% of venous and capillary values fell in the A and B zones and 1.33%, 1.36% fell in the D zone; (3) The agreement analysis showed that RT-CGMS readings were in close agreement with venous glucose and capillary glucose results; (4) The patients at the same MAGE levels had obvious differences in HbA1C.
  
  
  CONCLUSIONS
  There is a high level of correlation, accuracy and agreement between RT-CGMS and venous glucose and capillary glucose values.
authors.affiliation: Department of Endocrinology & Metabolism, Harbin Medical University, Harbin 150086, China. hrblq@yahoo.com.cn
authors.forename: Qiang
authors.initials: Q
authors.lastname: Li
authors.forename: Ying-ying
authors.initials: YY
authors.lastname: Wang
authors.forename: Ping
authors.initials: P
authors.lastname: Yü
authors.forename: Ping
authors.initials: P
authors.lastname: Gao
authors.forename: Yan-hui
authors.initials: YH
authors.lastname: Wu
authors.forename: Can
authors.initials: C
authors.lastname: Cui
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.forename: Li-li
authors.initials: LL
authors.lastname: Chen
authors.forename: Hong
authors.initials: H
authors.lastname: Qiao
authors.forename: Li-hong
authors.initials: LH
authors.lastname: Wang
authors.forename: Ying
authors.initials: Y
authors.lastname: Xiang
authors.forename: Zhong
authors.initials: Z
authors.lastname: Zhang
authors.forename: Jin-chao
authors.initials: JC
authors.lastname: Zhang
mesh_terms: D000328:Adult; D001786:Blood Glucose / Q000032:analysis*; D015190:Blood Glucose Self-Monitoring / Q000379:methods*; D002196:Capillaries / Q000737:chemistry*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014680:Veins / Q000737:chemistry*
chemical_list: D001786:Blood Glucose