Ecological Momentary Assessment of Positive and Negative Affect and Associations with Blood Glucose in Teens with Type 1 Diabetes
Authors' conclusion
Our findings shed light on individual differences in metabolic reactivity based on glycemic levels and the importance of incorporating affect into automated insulin delivery systems.
Study context
- Population
- Teens with T1D (44% male, ages 14–18, 63% pump-treated, HbA1c 8.8 ± 1.4%)
- Participants
- 32 participants
- Comparison
- HbA1c ≤8% vs HbA1c >8%
- Outcome
- Associations of positive and negative affect with BG checks, BG levels and daily BG variability (BGCV)
- Follow-up
- 2 weeks
Methodological detailsmomentary sampling over 2 weeks, generalized estimating equations adjusted for demographic and diabetes-related variables, stratified by HbA1c (≤8%, >8%)
- Momentary sampling over 2 weeks
- Generalized estimating equations adjusted for demographic and diabetes-related variables
- Stratified by HbA1c (≤8%, >8%)
Main finding
As reported in the abstract
Associations of affect with BG
HbA1c ≤8%: positive affect and in-range BG, OR
1.08 (1.04-1.13), P = .0002 (95% CI)
HbA1c ≤8%: positive affect and very low glucose, OR
0.35 (0.16-0.74), P = .006 (95% CI)
HbA1c ≤8%: positive affect and daily BG coefficient of variation (BGCV), β
−0.9 (−1.6, −0.2), P = .01 (95% CI)
HbA1c >8%: negative affect and checking BG, OR
0.75 (0.64-0.87), P = .0003 (95% CI)
Further findings
Distribution of reported BG
- In-range
- 51%
- Low
- 6%
- Severe low
- 2%
- High
- 44%
- Severe high
- 19%
Original publication
Ecological Momentary Assessment of Positive and Negative Affect and Associations with Blood Glucose in Teens with Type 1 Diabetes. J Diabetes Sci Technol. Published 30 July 2021. doi:10.
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