International Journal of Clinical Research

Objective To explore the correlation and difference between continuous glucose monitoring (CGM) values and venous plasma glucose (VPG) values in hospitalized patients with diabetes during the steamed bread meal tolerance test (SBMTT). Methods A total of 116 hospitalized patients with diabetes who were admitted to the Department of Endocrinology, Shandong Provincial Hospital from February 2022 to March 2024 were selected as the research subjects. VPG and CGM data were collected respectively in the fasting state and at 30, 60, 120, and 180 minutes after meals. Results The overall correlation coefficient between CGM and VPG was 0.968(P<0.001), indicating an extremely strong correlation. The difference between the two was the smallest in the fasting state, and the difference was proportional to the blood glucose concentration. The blood glucose reached the highest value at 120 minutes after meals. Conclusion CGM can accurately reflect the changing trend of VPG in hospitalized patients with diabetes, but the monitored values are generally lower than VPG, and the difference is more significant in the state of hyperglycemia.

Hospitalized patients with diabetes; Steamed bread meal tolerance test; Continuous glucose monitoring values; Venous plasma glucose values; Correlation; Difference