Prevalence of ICD-9-CM codes for chronic kidney disease in individuals with cardiovascular disease risk factors.
BACKGROUND
Chronic kidney disease (CKD) is a risk factor for cardiovascular disease (CVD).


METHODS
We determined the prevalence of diagnosed CKD in 87,128 members older than 40 years of age without CVD who were enrolled in a regional medical care plan with at least 1 claim for medical care.


RESULTS
The prevalence of diagnosed CKD was 4%, and 8%, 6%, 5% and 10% in patients with diabetes, hypertension, hyperlipidemia and all 3 risk factors, respectively. In multivariate analysis, the odd ratios for CKD were 1.8 (95% confidence interval [95% CI], 1.7-2.0) for older age, 2.5 (95% CI, 2.3-2.8) for diabetes, 2.2 (95% CI, 2.2-2.4) for hypertension, 1.5 (95% CI, 1.4-1.7) for hyperlipidemia and 4.4 (95% CI, 2.8, 5.1) for all 3 risk factors.


CONCLUSIONS
Prevalence of diagnosed CKD among patients with CVD risk factors is low but increases with age and number of risk factors, suggesting inadequate awareness of CKD. This may have implications for control of CVD risk factors in patients with CKD.
Mahajan
Ashish
A
Tufts Medical Center Scientific and Clinical Research Center, Boston, Massachusetts, USA.
Qiu
Jiejing
J
Stark
Paul C
PC
Persson
Rebecca
R
Kwack
Christina
C
Levey
Andrew S
AS
Stevens
Lesley A
LA
D000328:Adult; D000368:Aged; D002318:Cardiovascular Diseases / Q000209:etiology*; D002908:Chronic Disease; D048909:Diabetes Complications / Q000209:etiology; D006801:Humans; D006949:Hyperlipidemias / Q000150:complications; D006973:Hypertension / Q000150:complications; D038801:International Classification of Diseases; D007674:Kidney Diseases / Q000453:epidemiology*; D008875:Middle Aged; D015999:Multivariate Analysis; D015995:Prevalence; D012307:Risk Factors