Restless legs complaint in African-American and Caucasian hemodialysis patients.
OBJECTIVE
To compare the prevalence of Restless Legs Syndrome (RLS) symptoms in older African-American and Caucasian chronic renal failure patients undergoing maintenance hemodialysis (HD).


BACKGROUND
Few data are available about the prevalence of RLS in racial groups, although it has been suggested that the African-American population is at lower risk relative to the Caucasian population. Chronic renal failure patients on HD are known to be at increased risk for RLS.


METHODS
In-person interviews with 308 chronic renal failure patients aged 60-87 living in Georgia being treated by in-center HD.


RESULTS
More Caucasian patients than African-American patients reported experiencing RLS symptoms during the past 6 months (68 vs. 48%; P=0.0006). In a logistic regression analysis, African-American patients' reduced risk of RLS complaint was independent of patients' age, gender, education, body mass index (BMI), months on dialysis, diabetes as primary diagnosis, presence of cardiovascular comorbidity, and average number of weekly hours of HD.


CONCLUSIONS
Our data suggested a lower prevalence of RLS among older African-American than among older Caucasian patients on chronic HD. Further study is needed to determine whether this difference also occurs in idiopathic RLS and/or at different ages. The possibility of systematic reporting differences related to race should also be considered.
Kutner
Nancy G
NG
Department of Rehabilitation Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA. nkutner@emory.edu
Bliwise
Donald L
DL