Daytime napping and diabetes-associated kidney disease

Area of Science:

• Nephrology
• Endocrinology
• Sleep Medicine

Background:

• Diabetes-associated Kidney Disease (DKD) is a frequent complication in type 2 diabetes patients.
• Understanding risk factors for DKD progression is crucial for patient management.

Purpose of the Study:

• To investigate the association between daytime sleeping duration and DKD in type 2 diabetes patients.
• To determine if daytime sleep duration is an independent risk factor for kidney function decline.

Main Methods:

• Cross-sectional study of 733 type 2 diabetes outpatients from the DIACORE study.
• Daytime sleeping duration assessed via standardized questionnaire; DKD defined by eGFR and UACR.
• Statistical analyses adjusted for multiple potential confounding factors.

Main Results:

• Increasing daytime sleeping duration correlated with significant decreases in eGFR and increases in UACR.
• DKD prevalence was substantially higher in patients with longer daytime sleep durations.
• The association between longer daytime sleep and impaired kidney function (eGFR, UACR) remained significant after multivariable adjustment.

Conclusions:

• Increased daytime sleeping duration is significantly associated with poorer kidney function (reduced eGFR, elevated UACR) in type 2 diabetes patients.
• This relationship is independent of numerous known DKD modulators.
• Further research is needed to clarify the causal direction of this association.