Renal Resistive Index and Mortality in XXXX .

@entity1 @entity1095 @entity101 @entity6 @entity2791 @entity740 @entity432 @entity453 @entity204
UNASSIGNED: Renal resistive index (RRI) measured by Doppler ultrasonography is associated with cardiovascular events and mortality in @entity101 , @entity6 , and elderly @entity1 . We studied the factors associated with high RRI (>= 0.70) and its associations with mortality in @entity740 @entity1 without @entity2791 . We included 1962 @entity1 with an estimated glomerular filtration rate of 15 to 59 mL/min per 1.73 m(2) who also had RRI measured (January 1, 2005, to October 2011) from an existing @entity740 registry. @entity1 with @entity2791 (60%-99% or @entity432 ) were excluded. Multivariable logistic regression model was used to study factors associated with high RRI (>= 0.70), and its association with mortality was studied using Kaplan-Meier plots and Cox proportional hazards model. @entity101 was prevalent in >90% of the @entity1 . In the multivariable logistic regression, older age, female sex, @entity6 , @entity453 , @entity1095 , higher systolic blood pressure, and the use of b blockers were associated with higher odds of having RRI>= 0.70. During a median follow-up of 2.2 years, 428 @entity1 died. After adjusting for covariates, RRI>= 0.70 was associated with increased mortality (adjusted hazard ratio, 1.29; 95% confidence interval, 1.02-1.65; P<0.05). This association was more pronounced among younger @entity1 and those with stage 3 @entity740 . Noncardiovascular/non-malignancy-related @entity204 were higher in those with RRI>= 0.70. RRI>= 0.70 is associated with higher mortality in @entity740 @entity1 without clinically significant @entity2791 after accounting for other significant risk factors. Its evaluation may allow early identification of those who are at risk thereby potentially preventing or delaying adverse outcomes.
