TY - JOUR
T1 - Prognostic importance of weight loss in patients with coronary heart disease regardless of initial body mass index
AU - Sierra-Johnson, Justo
AU - Romero-Corral, Abel
AU - Somers, Virend K.
AU - Lopez-Jimenez, Francisco
AU - Thomas, Randal J.
AU - Squires, Ray W.
AU - Allison, Thomas G.
N1 - Funding Information:
Initial recruitment of the study cohort was undertaken with the help of a grant from the Minnesota (now Greater Midwest) Affiliate of the American Heart Association. Dr Virend K. Somers is supported in part by NIH grants HL-65176, HL-70302, HL-73211, and M01-RR00585.
PY - 2008/6
Y1 - 2008/6
N2 - Recently, mild elevations in body mass index (BMI) have been related to better outcomes in patients with coronary heart disease. Our aim was to determine whether patients with coronary heart disease who are participating in cardiac rehabilitation would have improved outcomes if they lost weight and whether this would depend on initial BMI. This is a prospective cohort study of 377 consecutive patients enrolled at a cardiac rehabilitation program, aged 30–85 years with a mean follow-up of 6.4 ± 1.8 years. We measured total mortality, acute cardiovascular events (fatal and nonfatal myocardial infarction, fatal and nonfatal stroke, emergent revascularization in the setting of unstable angina, and hospitalization for congestive heart failure) and a composite outcome (mortality + acute cardiovascular events). Statistical testing used Cox Proportional Hazards Regression. On average, the weight loss group ( n = 220) lost 3.6 ± 4.1 kg, and the nonweight loss group ( n = 157) gained 1.5 ± 1.4 kg ( P < 0.0001). The rate of the composite outcome was 24% (53/220) in those who did lose weight versus 37% (58/157) in those who did not lose weight. Weight loss was significantly associated with lower rate of the composite outcome after adjustment for age, sex, smoking, dyslipidemia, diabetes, hypertension, myocardial infarction, and obese status [hazard ratio (HR) = 0.62; P = 0.018]. Subgroup analysis showed that patients who lost weight had favorable outcomes both in patients with BMI ≤25 (HR = 0.32; P = 0.035) and those with BMI ≥ 25 kg/m2 (HR = 0.64; P = 0.032). Weight loss in cardiac rehabilitation is a marker for favorable long-term outcomes, regardless of initial BMI.
AB - Recently, mild elevations in body mass index (BMI) have been related to better outcomes in patients with coronary heart disease. Our aim was to determine whether patients with coronary heart disease who are participating in cardiac rehabilitation would have improved outcomes if they lost weight and whether this would depend on initial BMI. This is a prospective cohort study of 377 consecutive patients enrolled at a cardiac rehabilitation program, aged 30–85 years with a mean follow-up of 6.4 ± 1.8 years. We measured total mortality, acute cardiovascular events (fatal and nonfatal myocardial infarction, fatal and nonfatal stroke, emergent revascularization in the setting of unstable angina, and hospitalization for congestive heart failure) and a composite outcome (mortality + acute cardiovascular events). Statistical testing used Cox Proportional Hazards Regression. On average, the weight loss group ( n = 220) lost 3.6 ± 4.1 kg, and the nonweight loss group ( n = 157) gained 1.5 ± 1.4 kg ( P < 0.0001). The rate of the composite outcome was 24% (53/220) in those who did lose weight versus 37% (58/157) in those who did not lose weight. Weight loss was significantly associated with lower rate of the composite outcome after adjustment for age, sex, smoking, dyslipidemia, diabetes, hypertension, myocardial infarction, and obese status [hazard ratio (HR) = 0.62; P = 0.018]. Subgroup analysis showed that patients who lost weight had favorable outcomes both in patients with BMI ≤25 (HR = 0.32; P = 0.035) and those with BMI ≥ 25 kg/m2 (HR = 0.64; P = 0.032). Weight loss in cardiac rehabilitation is a marker for favorable long-term outcomes, regardless of initial BMI.
KW - cardiac rehabilitation
KW - follow-up
KW - obesity
KW - outcomes
KW - weight loss
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U2 - 10.1097/HJR.0b013e3282f48348
DO - 10.1097/HJR.0b013e3282f48348
M3 - Article
C2 - 18525390
AN - SCOPUS:56149088321
SN - 2047-4873
VL - 15
SP - 336
EP - 340
JO - European Journal of Preventive Cardiology
JF - European Journal of Preventive Cardiology
IS - 3
ER -