Circulation Journal
Online ISSN : 1347-4820
Print ISSN : 1346-9843
ISSN-L : 1346-9843
Cardiac Rehabilitation
Extended Sedentary Time Increases the Risk of All-Cause Death and New Cardiovascular Events in Patients With Diabetic Kidney Disease
Hajime TamiyaYuma TamuraSyusuke MochiYusuke AkazawaYumi MochiNobuyuki BanbaYuki NakataniMegumi HoshiaiAsuka UenoMoeko NagaoTakashi TomoeMasato OnozakiAtsuko UemaAtsuhiko KawabeTakushi SugiyamaTakanori Yasu
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2020 Volume 84 Issue 12 Pages 2190-2197


Background:Sedentary behavior may be an independent risk factor for cardiovascular events. This study aimed to clarify the effects of extended sedentary time in patients with diabetic kidney disease (DKD) on the risk of all-cause death and new events.

Methods and Results:A prospective cohort study was performed over 39 months. The study included 173 patients with DKD who completed the International Physical Activity Questionnaire (IPAQ) (101 men; mean age, 71±11 years); 37 patients (21.4%) were diagnosed with cardiovascular disease (CVD). New events were defined as all-cause death, cerebral stroke, or CVD requiring hospitalization or commencing hemodialysis (HD). Data were analyzed using a multivariate Cox proportional hazard regression model with variables, including sedentary time. There were 34 cases of new events during the observation period, including 4 cases of stroke, 20 cases of CVD, 4 cases of HD implementation, and 6 cases of death. Hazard ratio (HR) calculations for the new event onset group identified sedentary time as a significant independent variable. The independent variable that was identified as a significant predictor of new events was the sedentary time (60 min/day; HR: 1.23, 95% CI: 1.05–1.45, P=0.012).

Conclusions:Extended sedentary time increased the risk of new cardiovascular or renal events and/or all-cause death in patients with DKD.

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