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Updated: May 24, 2025

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Published on: June 11, 2012
Workplace-based continuous glucose monitoring with structured education for pre-diabetes and type 2 diabetes: A
Ji-Hee Ko1,2, Sun-Joon Moon1, Ramzi A Ajjan3
1Division of Endocrinology and Metabolism, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Aims:
We investigated the effect of continuous glucose monitoring (CGM) with personalised structured education on patients with type 2 diabetes (T2D) and pre-diabetes in a workplace setting.
Materials And Methods:
This 8-week prospective study enrolled adults with T2D or pre-diabetes at Samsung Electronics Device Solutions between March and September 2023. Participants underwent CGM (Freestyle Libre) for 2 weeks and received personalized structured education on diet and physical activity. The primary outcome was the change in HbA1c level at 8 weeks compared with baseline. Secondary outcomes included changes in fasting blood sugar (FBS), lipid profile, weight and patient-related outcome measures (PROMs) at 8 weeks and longer.
Results:
Among 234 participants (161 T2D and 73 pre-diabetes), significant improvements were observed in the T2D group patients in terms of HbA1c (6.9% ± 1.2%-6.5% ± 0.8%), FBS (128.4 ± 36.9-117.6 ± 22.2 mg/dL), weight (81.9 ± 13.5-80.7 ± 13.6 kg) and low-density lipoprotein (LDL) cholesterol (106.0 ± 41.5 to 95.1 ± 35.9 mg/dL) (all p < 0.001) levels. Meanwhile, patients with pre-diabetes showed significant improvements in weight (79.7 ± 14.0-78.5 ± 13.9 kg) and LDL cholesterol (124.5 ± 32.8-113.8 ± 29.1 mg/dL) (all p < 0.001), with no significant changes in HbA1c or FBS. These improvements were maintained during follow-up check-ups after a mean of 6.4 months. Participants in both groups demonstrated improvements in their PROMs.
Conclusions:
Among adults with T2D and pre-diabetes, the use of CGM with structured education in a workplace-based setting helped with weight loss and improved LDL cholesterol levels in both groups, while also improving glycaemia in patients with T2D.
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