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The 9p21 genetic variant is additive to carotid intima media thickness and plaque in improving coronary heart disease risk prediction in white participants of the Atherosclerosis Risk in Communities (ARIC) Study.

TitleThe 9p21 genetic variant is additive to carotid intima media thickness and plaque in improving coronary heart disease risk prediction in white participants of the Atherosclerosis Risk in Communities (ARIC) Study.
Publication TypeJournal Article
Year of Publication2012
AuthorsNambi V, Boerwinkle E, Lawson K, Brautbar A, Chambless L, Franeschini N, North KE, Virani SS, Folsom AR
Secondary AuthorsBallantyne CM
JournalAtherosclerosis
Volume222
Issue1
Pagination135-7
Date Published2012 May
ISSN1879-1484
KeywordsCarotid Intima-Media Thickness, Chromosomes, Human, Pair 9, Coronary Disease, European Continental Ancestry Group, Humans, Plaque, Atherosclerotic, Polymorphism, Single Nucleotide, Risk, Risk Factors, ROC Curve
Abstract

OBJECTIVE: We evaluated whether the addition of carotid intima media thickness and plaque (CIMT-P), and a single nucleotide polymorphism on chromosome 9p21 (9p21) together improve coronary heart disease (CHD) risk prediction in the ARIC study.

METHODS: Ten year CHD risk was estimated using the ARIC coronary risk score (ACRS) alone and in combination with CIMT-P and 9p21 individually and together in White participants (n=9338). Area under the receiver operating characteristic curve (AUC), model calibration, net reclassification index (NRI), integrated discrimination index (IDI) and number of individuals reclassified were estimated.

RESULTS: The AUC of the ACRS, ACRS+9p21, ACRS+CIMT-P and ACRS+CIMT-P+9p21 models were 0.748, 0.751, 0.763 and 0.766 respectively. The percentage of individuals reclassified, model calibration, NRI and IDI improved when CIMT-P and 9p21 were added to the ACRS only model (see manuscript).

CONCLUSION: Addition of 9p21 allele information to CIMT-P minimally improves CHD risk prediction in whites in the ARIC study.

DOI10.1016/j.atherosclerosis.2012.01.028
Alternate JournalAtherosclerosis
PubMed ID22349088
PubMed Central IDPMC3334435
Grant ListHHSN268201100012C / HL / NHLBI NIH HHS / United States
UL1RR025005 / RR / NCRR NIH HHS / United States
HHSN268201100009I / HL / NHLBI NIH HHS / United States
R01 HL059367-11 / HL / NHLBI NIH HHS / United States
R01HL59367 / HL / NHLBI NIH HHS / United States
HHSN268201100010C / HL / NHLBI NIH HHS / United States
UL1 RR025005 / RR / NCRR NIH HHS / United States
UL1 RR025005-05 / RR / NCRR NIH HHS / United States
HHSN268201100008C / HL / NHLBI NIH HHS / United States
HHSN268201100005G / HL / NHLBI NIH HHS / United States
K23 HL096893-03 / HL / NHLBI NIH HHS / United States
HHSN268201100008I / HL / NHLBI NIH HHS / United States
HHSN268201100005C / / PHS HHS / United States
R01 HL059367 / HL / NHLBI NIH HHS / United States
HHSN268201100007C / HL / NHLBI NIH HHS / United States
HHSN268201100009C / / PHS HHS / United States
HHSN268201100011I / HL / NHLBI NIH HHS / United States
HHSN268201100011C / HL / NHLBI NIH HHS / United States
R01 HL086694 / HL / NHLBI NIH HHS / United States
R01 HL086694-05 / HL / NHLBI NIH HHS / United States
HHSN268200625226C / / PHS HHS / United States
U01 HG004402 / HG / NHGRI NIH HHS / United States
HHSN268201100010C / / PHS HHS / United States
U01HG004402 / HG / NHGRI NIH HHS / United States
HHSN268201100006C / HL / NHLBI NIH HHS / United States
HHSN268201100008C / / PHS HHS / United States
HHSN268201100012C / / PHS HHS / United States
R01HL087641 / HL / NHLBI NIH HHS / United States
K23 HL096893 / HL / NHLBI NIH HHS / United States
HHSN268201100005I / HL / NHLBI NIH HHS / United States
HHSN268201100007C / / PHS HHS / United States
UL1 RR024148 / RR / NCRR NIH HHS / United States
U01 HG004402-02S1 / HG / NHGRI NIH HHS / United States
HHSN268201100009C / HL / NHLBI NIH HHS / United States
HHSN268201100011C / / PHS HHS / United States
HHSN268201100005C / HL / NHLBI NIH HHS / United States
R01 HL087641-01 / HL / NHLBI NIH HHS / United States
HHSN268201100007I / HL / NHLBI NIH HHS / United States
HHSN268201100006C / / PHS HHS / United States
R01 HL087641 / HL / NHLBI NIH HHS / United States
R01HL086694 / HL / NHLBI NIH HHS / United States