Is high-sensitivity C-reactive protein associated with carotid atherosclerosis in healthy Koreans?
BACKGROUND
There is a positive association between chronic inflammation and the risk of cardiovascular disease, but whether there is an association between C-reactive protein (CRP) and carotid atherosclerosis is controversial. We investigated the relationship between high-sensitivity CRP (hsCRP) levels and carotid intima-media thickness (IMT) in healthy Koreans.


METHODS
We measured hsCRP levels, the carotid IMT, and conventional cardiovascular risk factors including obesity parameters, blood pressure, lipid profiles, insulin resistance, and smoking habits in 820 volunteers (35-79 years old) in a cross-sectional study.


RESULTS
Higher hsCRP quartile groups had higher mean IMTs, as compared with the lowest quartile (P < 0.001 for the trend across quartiles). However, after adjustment for age, the relationship between hsCRP level and IMT was substantially weaker (P = 0.018). After additional adjustments for conventional cardiovascular risk factors, no significant association was observed (P = 0.548). The unadjusted risk for a high carotid IMT value (> or = 1.0 mm) was also positively related to hsCRP quartile, but this relationship was not significant after adjustment for age and other cardiovascular risk factors.


CONCLUSIONS
Both hsCRP levels and the carotid IMT were strongly correlated with conventional cardiovascular risk factors, but there was no independent association between hsCRP levels and carotid IMT in healthy Korean adults.
Hee Choi
Sung
S
Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam-si, Seoul, Korea.
Chang Kim
Hyeon
H
Woo Ahn
Chul
C
Keun Cho
Hong
H
Soo Cha
Bong
B
Chung
Yoon-Sok
YS
Woo Lee
Kwan
K
Chul Lee
Hyun
H
Bum Huh
Kap
K
Kim
Dae-Jung
DJ
D000328:Adult; D000368:Aged; D015415:Biomarkers / Q000097:blood; D002097:C-Reactive Protein / Q000378:metabolism*; D002340:Carotid Artery Diseases / Q000097:blood* / Q000000981:diagnostic imaging / Q000453:epidemiology; D017536:Carotid Artery, Common / Q000000981:diagnostic imaging; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007723:Korea / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009391:Nephelometry and Turbidimetry; D015995:Prevalence; D012016:Reference Values; D012189:Retrospective Studies; D012307:Risk Factors; D017539:Tunica Intima / Q000000981:diagnostic imaging; D014463:Ultrasonography
D015415:Biomarkers; D002097:C-Reactive Protein