Sleep-Opt-In: A Randomized Controlled Pilot Study to Improve Sleep and Glycemic Variability in Adults With Type 1 Diabetes.
Pamela Martyn-Nemeth, Jennifer Duffecy, Laurie Quinn and 5 others
PMID 36453165WHAT IT FOUND
An 8-week sleep coaching program improved sleep regularity and glucose variability in adults with type 1 diabetes, but did not increase sleep duration.
The study was a small pilot, so these results show feasibility rather than proven efficacy.
Key findings
01In participants with objectively confirmed short or irregular sleep, the intervention group improved sleep regularity by 25 minutes, while the control group changed by only 2 minutes.
02Glucose variability decreased by 3.2% and time in range increased by 6.9% in the intervention group, whereas these metrics worsened or remained stable in the control group.
03The intervention did not improve sleep duration; in the subgroup analysis, the control group actually increased sleep duration by 25 minutes compared to 8 minutes for the intervention group.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
The study was not powered to detect significant effects, so findings are preliminary and effect sizes are imprecise. Six of the fourteen participants enrolled based on self-reported sleep issues did not have objectively confirmed short or irregular sleep, which diluted the results for the full group. The sample size was very small (n=14), with only nine in the intervention group initially and eight in the final analyzed subgroup. Hemoglobin A1C was measured at 8 weeks, which is too short a timeframe to fully reflect changes in average blood glucose over the typical 3-month period.
Declared interests
The study was supported by the National Institutes of Health (Extramural) and non-U.S. government funding. No specific commercial conflicts of interest were declared in the provided text.
The easy way to misread this
Do not interpret the improvements in glucose variability and sleep regularity as proof that this program works for all patients with type 1 diabetes. This was a small pilot study that was not powered to detect efficacy, and the results were driven by a subgroup of eight participants who had objectively confirmed sleep issues.