TY - JOUR
T1 - Body mass index and the prevalence, severity, and risk of coronary artery disease
T2 - An international multicentre study of 13 874 patients
AU - Labounty, Troy M.
AU - Gomez, Millie J.
AU - Achenbach, Stephan
AU - Al-Mallah, Mouaz
AU - Berman, Daniel S.
AU - Budoff, Matthew J.
AU - Cademartiri, Filippo
AU - Callister, Tracy Q.
AU - Chang, Hyuk Jae
AU - Cheng, Victor
AU - Chinnaiyan, Kavitha M.
AU - Chow, Benjamin
AU - Cury, Ricardo
AU - Delago, Augustin
AU - Dunning, Allison
AU - Feuchtner, Gudrun
AU - Hadamitzky, Martin
AU - Hausleiter, Jorg
AU - Kaufmann, Philipp
AU - Kim, Yong Jin
AU - Leipsic, Jonathon
AU - Lin, Fay Y.
AU - Maffei, Erica
AU - Raff, Gilbert
AU - Shaw, Leslee J.
AU - Villines, Todd C.
AU - Min, James K.
PY - 2013/5
Y1 - 2013/5
N2 - AimsObesity is associated with the presence of coronary artery disease (CAD) risk factors and cardiovascular events. We examined the relationship between body mass index (BMI) and the presence, extent, severity, and risk of CAD in patients referred for coronary computed tomographic angiography (CCTA).Methods and resultsWe evaluated 13 874 patients from a prospective, international, multicentre registry of individuals without known CAD undergoing CCTA. We compared risk factors, CAD findings, and risk of all-cause mortality and non-fatal myocardial infarction (MI) amongst individuals with underweight (18.5-20.0 kg/m2), normal (20.1-24.9 kg/m2), overweight (25-29.9 kg/m2), and obese (≥30 kg/m2) BMI. The mean follow-up was 2.4 ± 1.2 years with 143 deaths and 193 MIs. Among underweight, normal weight, overweight, and obese individuals, there was increasing prevalence of diabetes (7 vs.10% vs. 12 vs. 19%), hypertension (37 vs. 40% vs. 46 vs. 59%), and hyperlipidaemia (48 vs. 52% vs. 56 vs. 56%; P < 0.001 for trend). After multivariable adjustment, BMI was positively associated with the prevalence of any CAD [odds ratio (OR) 1.25 per +5 kg/m2, 95% confidence interval (CI): 1.20-1.30, P < 0.001] and obstructive (≥50% stenosis) CAD (OR: 1.13 per +5 kg/m2, 95% CI: 1.08-1.19, P < 0.001); a higher BMI was also associated with an increased number of segments with plaque (+0.26 segments per +5 kg/m2, 95% CI: 0.22-0.30, P < 0.001). Larger BMI categories were associated with an increase in all-cause mortality (P = 0.004), but no difference in non-fatal MI. After multivariable adjustment, a higher BMI was independently associated with increased risk of MI (hazards ratio: 1.28 per +5 kg/m2, 95% CI: 1.12-1.45, P < 0.001).ConclusionsAmongst patients with suspected CAD referred for CCTA, individuals with increased BMI have greater prevalence, extent, and severity of CAD that is not fully explained by the presence of traditional risk factors. A higher BMI is independently associated with increased risk of intermediate-term risk of myocardial infarction.
AB - AimsObesity is associated with the presence of coronary artery disease (CAD) risk factors and cardiovascular events. We examined the relationship between body mass index (BMI) and the presence, extent, severity, and risk of CAD in patients referred for coronary computed tomographic angiography (CCTA).Methods and resultsWe evaluated 13 874 patients from a prospective, international, multicentre registry of individuals without known CAD undergoing CCTA. We compared risk factors, CAD findings, and risk of all-cause mortality and non-fatal myocardial infarction (MI) amongst individuals with underweight (18.5-20.0 kg/m2), normal (20.1-24.9 kg/m2), overweight (25-29.9 kg/m2), and obese (≥30 kg/m2) BMI. The mean follow-up was 2.4 ± 1.2 years with 143 deaths and 193 MIs. Among underweight, normal weight, overweight, and obese individuals, there was increasing prevalence of diabetes (7 vs.10% vs. 12 vs. 19%), hypertension (37 vs. 40% vs. 46 vs. 59%), and hyperlipidaemia (48 vs. 52% vs. 56 vs. 56%; P < 0.001 for trend). After multivariable adjustment, BMI was positively associated with the prevalence of any CAD [odds ratio (OR) 1.25 per +5 kg/m2, 95% confidence interval (CI): 1.20-1.30, P < 0.001] and obstructive (≥50% stenosis) CAD (OR: 1.13 per +5 kg/m2, 95% CI: 1.08-1.19, P < 0.001); a higher BMI was also associated with an increased number of segments with plaque (+0.26 segments per +5 kg/m2, 95% CI: 0.22-0.30, P < 0.001). Larger BMI categories were associated with an increase in all-cause mortality (P = 0.004), but no difference in non-fatal MI. After multivariable adjustment, a higher BMI was independently associated with increased risk of MI (hazards ratio: 1.28 per +5 kg/m2, 95% CI: 1.12-1.45, P < 0.001).ConclusionsAmongst patients with suspected CAD referred for CCTA, individuals with increased BMI have greater prevalence, extent, and severity of CAD that is not fully explained by the presence of traditional risk factors. A higher BMI is independently associated with increased risk of intermediate-term risk of myocardial infarction.
KW - Body mass index
KW - Coronary artery disease
KW - Myocardial infarction
KW - Obesity
UR - http://www.scopus.com/inward/record.url?scp=84876557102&partnerID=8YFLogxK
U2 - 10.1093/ehjci/jes179
DO - 10.1093/ehjci/jes179
M3 - Article
C2 - 22922955
AN - SCOPUS:84876557102
SN - 2047-2404
VL - 14
SP - 456
EP - 463
JO - European Heart Journal Cardiovascular Imaging
JF - European Heart Journal Cardiovascular Imaging
IS - 5
ER -