Skip to main content

Casual Blood Glucose Testing Misses ~70 Percent of Gestational Diabetes Cases

By Elana Gotkine HealthDay Reporter

Medically reviewed by Carmen Pope, BPharm. Last updated on Sep 27, 2024.

via HealthDay

FRIDAY, Sept. 27, 2024 -- Casual blood glucose (CBG) testing at 24 to 28 gestational weeks misses about 70 percent of women with gestational diabetes mellitus (GDM), according to a study published online Sept. 18 in the Journal of Diabetes Investigation.

Masako Tomimoto, M.D., from the Kobe University Graduate School of Medicine in Japan, and colleagues enrolled 763 pregnant women who underwent the 50-g glucose challenge test (GCT) at 24 to 28 gestational weeks to examine problems in screening for GDM by CBG measurements. The preload blood glucose (0-h BG) on 50-g GCT with CBG was identified, and the relationship between 50-g GCT positivity (1-h BG on 50-g GCT ≥140 mg/dL) and CBG positivity (0-h BG on 50-g GCT ≥100 mg/dL) was examined.

The researchers found that of the 240 women with 50-g GCT positivity who underwent the 75-g oral glucose tolerance test, GDM was diagnosed in 98 (40.8 percent). Overall, 71 (71.7 percent) of the 99 women with GDM had 0-h BG <100 mg/dL on 50-g GCT.

"Although there have been studies showing that the casual blood glucose test is less sensitive than others, no studies have directly compared the results in the same individuals," Tomimoto said in a statement. "Our study confirmed that this screening method, which is widely used in practice, frequently misses the condition it is meant to detect."

Abstract/Full Text

Disclaimer: Statistical data in medical articles provide general trends and do not pertain to individuals. Individual factors can vary greatly. Always seek personalized medical advice for individual healthcare decisions.

© 2025 HealthDay. All rights reserved.

Read this next

Consistent Physical Activity Linked to Reduced All-Cause, CVD Mortality

FRIDAY, July 11, 2025 -- Consistently and increasingly accumulated physical activity (PA) is associated with a reduced risk for all-cause and cardiovascular disease (CVD)...

Increased Liver Enzyme Levels Seen With Use of Cannabidiol in Adults

THURSDAY, July 10, 2025 -- Use of cannabidiol (CBD) within the range consumers are taking with unregulated CBD products is associated with increased liver enzyme levels, according...

Majority of Patients With Lyme Disease Do Not Follow Up With Clinician

THURSDAY, July 10, 2025 -- Only 34 percent of patients with erythema migrans >5 cm are positive for Lyme disease by a standard two-tier testing (STTT) algorithm, and of...

More news resources

Subscribe to our newsletter

Whatever your topic of interest, subscribe to our newsletters to get the best of Drugs.com in your inbox.