GDM Series - CGM Ottai
# CGMThe last part - Ottai
1️⃣ Accuracy - Accuracy (Compared to 100g OGTT)
Fasting: 75 vs 97 → + 29.3%
1 hr: 216 vs 209 → -3.2%
2 hr: 184 vs 187 → + 1.6%
3 hr: 160 vs 155 → -3.1%
Mean Difference 9.3%
Analysis
✅ After drinking sugar (1-3 hours), very low tolerances (± 1-3%)
⚠️ The fasting range is quite high.
Maybe it's just the first time!? (The answer from the company says the value may not be stable for the first 24-48 hours)
Accuracy summary:
For after-food trends, it works well.
2️⃣ GDM Mode (Gestational Diabetes Mode)
Ottai has a specific mode for mothers with gestational diabetes (GDM), which is considered very hallmark.
🎯 Target value in GDM Mode
Fasting < 95 mg / dL
1 hour after meal < 140 mg / dL
2 hours after meal < 120 mg / dL
(It is the standard value used in antenatal clinics)
Comment to GDM Mode
🔹 set an alert based on a particular GDM criterion.
🔹 worth 1 hr / 2 hr after a clear meal.
🔹 tell time to peak each meal.
🔹 reduce fingertip puncture often.
Conclusion:
GDM mode is considered pretty well designed. Really understand the clinical target, not just rename the mode.
3️⃣ User Experience (use)
🔹 real-time reading app.
🔹 the graph looks easy.
🔹 have Time in Range.
🔹 have a high / low alert.
🔹 small sensor size. Comfortable.
🔸 but when removing the blue body secretly has needle marks for many days
4️⃣ Who suits?
✔️ GDM moms who need to check for 4 / day
✔️. Someone who wants to see the spike after a meal.
✔️ Diet / insulin warden
✔️ health lines that want to optimize metabolic health.
5️⃣ Advantage vs Constraint
✅ Advantage
Accuracy very good
🔹 have GDM Mode with target 1hr / 2hr.
🔹 see the trend in detail.
🔹 reduce finger prick
🔹 friendly price.
⚠️. Restrictions.
🔹, we still can't find the FDA Thai information of this brand.
🔹 the first day of the sensor may swing.



















































































