Carbohydrate Estimation Accuracy of Two Commercially Available Smartphone Applications vs Estimation by Individuals With Type 1 Diabetes: A Comparative Study
Authors' conclusion
SNAQ may provide effective CHO estimation support for people with T1D, particularly those with large or inconsistent CHO estimation errors. Its impact on glucose control remains to be evaluated.
Study context
- Population
- Individuals with T1D aged ≥16 years; 26 cooked meals prepared at hospital kitchen, each participant estimating 2 meals in 3 sizes
- Participants
- 53 individuals
- Comparison
- SNAQ and Calorie Mama smartphone apps vs patient CHO estimation
- Participantsn = 53reference
- Outcome
- Accuracy: estimate's deviation from ground-truth CHO content (weight multiplied by nutritional facts from recipe database)
Methodological detailswithin-participant comparison, Apps also rated using the Mars-G questionnaire
- Within-participant comparison
- Apps also rated using the Mars-G questionnaire
Main finding
As reported in the abstract
Absolute error of CHO estimate
| Group | Value | Relative absolute error |
|---|---|---|
| Participants | mean 21 (SD 21.5) g | 71 ± 72.7% |
| Calorie Mama | mean 24 (SD 36.5) g | 81.2 ± 123.4% |
| SNAQ | mean 13.1 (SD 11.3) g | 44.3 ± 38.2% |
Value
Participantsmean 21 (SD 21.5) g
Calorie Mamamean 24 (SD 36.5) g
SNAQmean 13.1 (SD 11.3) g
Relative absolute error
Participants71 ± 72.7%
Calorie Mama81.2 ± 123.4%
SNAQ44.3 ± 38.2%
- SNAQ vs Participants: P > 0.05 — SNAQ outperformed (both P > .05 as printed)
- SNAQ vs Calorie Mama: P > 0.05 — SNAQ outperformed (both P > .05 as printed)
Further findings
Error consistency (within-participant SD)
- Error consistency did not significantly differ between the methods
Original publication
Carbohydrate Estimation Accuracy of Two Commercially Available Smartphone Applications vs Estimation by Individuals With Type 1 Diabetes: A Comparative Study. J Diabetes Sci Technol. Published 26 July 2024. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →