Why the study?
Is daytime napping associated with improved retinal microcirculation in a general population?
Population
2,662 participants from a prospective population-based cohort in China
Comparison
Daytime napping vs No daytime napping
Design
Cross-sectional
Key result
Daytime napping for 0.5-1 hour was associated with a 4.18 µm wider central retinal arteriolar equivalent compared to no nap (95% CI 2.45-5.91, p<0.001).
Authors
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0.5–1 h napping was associated with better retinal calibers; hypothesis-generating for microcirculation benefits, prospective studies needed before practice implications.
Cross-Sectional (n=2,662)
Is daytime napping associated with improved retinal microcirculation in a general population?
Mean Difference: 4.18 (95% CI 2.45–5.91)
p-value: p=< 0.001
Self-reported daytime napping of 0.5-1 hour is associated with wider central retinal arteriolar equivalent and a lower risk of arterio-to-venous ratio reduction, suggesting a potential beneficial role on microcirculation.
Liu et al. (2021) reported a cross-sectional. Daytime napping (0.5-1 h) vs. No nap was evaluated on Central retinal arteriolar equivalent (CRAE) (MD 4.18 µm, 95% CI 2.45-5.91, p=< 0.001). Daytime napping for 0.5-1 hour was associated with a 4.18 µm wider central retinal arteriolar equivalent compared to no nap (95% CI 2.45-5.91, p<0.001).
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