TY - JOUR
T1 - Normal-Weight Central Obesity and Mortality Risk in Older Adults with Coronary Artery Disease
AU - Sharma, Saurabh
AU - Batsis, John A.
AU - Coutinho, Thais
AU - Somers, Virend K
AU - Hodge, David O
AU - Carter, Rickey E
AU - Sochor, Ondrej
AU - Kragelund, Charlotte
AU - Kanaya, Alka M
AU - Zeller, Marianne
AU - Park, Jong-Seon
AU - Køber, Lars
AU - Torp-Pedersen, Christian
AU - Lopez-Jimenez, Francisco
PY - 2016
Y1 - 2016
N2 - Objective To study the relationship between body mass index (BMI) and central obesity and mortality in elderly patients with coronary artery disease (CAD). Patients and Methods We identified 7057 patients 65 years or older from 5 cohort studies assessing mortality risk using either waist circumference (WC) or waist-hip ratio (WHR) in patients with CAD from January 1, 1980, to December 31, 2008. Normal weight, overweight, and obesity were defined using standard BMI cutoffs. High WHR was defined as 0.85 or more for women and 0.90 or more for men. High WC was defined as 88 cm or more for women and 102 cm or more for men. Separate models examined WC or WHR in combination with BMI (6 categories each) as the primary predictor (referent = normal BMI and normal WC or WHR). Cox proportional hazards models investigated the relationship between these obesity categories and mortality. Results Patients' mean age was 73.0±6.0 years (3741 [53%] women). The median censor time was 7.1 years. A normal BMI with central obesity (high WHR or high WC) demonstrated highest mortality risk (hazard ratio [HR], 1.29; 95% CI, 1.14-1.46; HR, 1.29; 95% CI, 1.12-1.50, respectively). High WHR was also predictive of mortality in the overall (HR, 2.14; 95% CI, 1.93-2.38) as well as in the sex-specific cohort. In the overall cohort, high WC was not predictive of mortality (HR, 1.04; 95% CI, 0.97-1.12); however, it predicted higher risk in men (HR, 1.12; 95% CI, 1.01-1.24). Conclusion In older adults with CAD, normal-weight central obesity defined using either WHR or WC is associated with high mortality risk, highlighting a need to combine measures in adiposity-related risk assessment.
AB - Objective To study the relationship between body mass index (BMI) and central obesity and mortality in elderly patients with coronary artery disease (CAD). Patients and Methods We identified 7057 patients 65 years or older from 5 cohort studies assessing mortality risk using either waist circumference (WC) or waist-hip ratio (WHR) in patients with CAD from January 1, 1980, to December 31, 2008. Normal weight, overweight, and obesity were defined using standard BMI cutoffs. High WHR was defined as 0.85 or more for women and 0.90 or more for men. High WC was defined as 88 cm or more for women and 102 cm or more for men. Separate models examined WC or WHR in combination with BMI (6 categories each) as the primary predictor (referent = normal BMI and normal WC or WHR). Cox proportional hazards models investigated the relationship between these obesity categories and mortality. Results Patients' mean age was 73.0±6.0 years (3741 [53%] women). The median censor time was 7.1 years. A normal BMI with central obesity (high WHR or high WC) demonstrated highest mortality risk (hazard ratio [HR], 1.29; 95% CI, 1.14-1.46; HR, 1.29; 95% CI, 1.12-1.50, respectively). High WHR was also predictive of mortality in the overall (HR, 2.14; 95% CI, 1.93-2.38) as well as in the sex-specific cohort. In the overall cohort, high WC was not predictive of mortality (HR, 1.04; 95% CI, 0.97-1.12); however, it predicted higher risk in men (HR, 1.12; 95% CI, 1.01-1.24). Conclusion In older adults with CAD, normal-weight central obesity defined using either WHR or WC is associated with high mortality risk, highlighting a need to combine measures in adiposity-related risk assessment.
U2 - 10.1016/j.mayocp.2015.12.007
DO - 10.1016/j.mayocp.2015.12.007
M3 - Journal article
C2 - 26860580
AN - SCOPUS:84959483809
SN - 0025-6196
VL - 91
SP - 343
EP - 351
JO - Mayo Clinic Proceedings
JF - Mayo Clinic Proceedings
IS - 3
ER -