Annals of internal medicine · 2015
Normal-Weight Central Obesity: Implications for Total and Cardiovascular Mortality.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Sahakyan Karine R, Somers Virend K, Rodriguez-Escudero Juan P, Hodge David O, Carter Rickey E, Sochor Ondrej, Coutinho Thais, Jensen Michael D, Roger Véronique L, Singh Prachi, Lopez-Jimenez Francisco
Аннотация
BACKGROUND: The relationship between central obesity and survival in community-dwelling adults with normal body mass index (BMI) is not well-known.
OBJECTIVE: To examine total and cardiovascular mortality risks associated with central obesity and normal BMI.
DESIGN: Stratified multistage probability design.
SETTING: NHANES III (Third National Health and Nutrition Examination Survey).
PARTICIPANTS: 15,184 adults (52.3% women) aged 18 to 90 years.
MEASUREMENTS: Multivariable Cox proportional hazards models were used to evaluate the relationship of obesity patterns defined by BMI and waist-to-hip ratio (WHR) and total and cardiovascular mortality risk after adjustment for confounding factors.
RESULTS: Persons with normal-weight central obesity had the worst long-term survival. For example, a man with a normal BMI (22 kg/m2) and central obesity had greater total mortality risk than one with similar BMI but no central obesity (hazard ratio [HR], 1.87 [95% CI, 1.53 to 2.29]), and this man had twice the mortality risk of participants who were overweight or obese according to BMI only (HR, 2.24 [CI, 1.52 to 3.32] and 2.42 [CI, 1.30 to 4.53], respectively). Women with normal-weight central obesity also had a higher mortality risk than those with similar BMI but no central obesity (HR, 1.48 [CI, 1.35 to 1.62]) and those who were obese according to BMI only (HR, 1.32 [CI, 1.15 to 1.51]). Expected survival estimates were consistently lower for those with central obesity when age and BMI were controlled for.
LIMITATIONS: Body fat distribution was assessed based on anthropometric indicators alone. Information on comorbidities was collected by self-report.
CONCLUSION: Normal-weight central obesity defined by WHR is associated with higher mortality than BMI-defined obesity, particularly in the absence of central fat distribution.
PRIMARY FUNDING SOURCE: National Institutes of Health, American Heart Association, European Regional Development Fund, and Czech Ministry of Health.
OBJECTIVE: To examine total and cardiovascular mortality risks associated with central obesity and normal BMI.
DESIGN: Stratified multistage probability design.
SETTING: NHANES III (Third National Health and Nutrition Examination Survey).
PARTICIPANTS: 15,184 adults (52.3% women) aged 18 to 90 years.
MEASUREMENTS: Multivariable Cox proportional hazards models were used to evaluate the relationship of obesity patterns defined by BMI and waist-to-hip ratio (WHR) and total and cardiovascular mortality risk after adjustment for confounding factors.
RESULTS: Persons with normal-weight central obesity had the worst long-term survival. For example, a man with a normal BMI (22 kg/m2) and central obesity had greater total mortality risk than one with similar BMI but no central obesity (hazard ratio [HR], 1.87 [95% CI, 1.53 to 2.29]), and this man had twice the mortality risk of participants who were overweight or obese according to BMI only (HR, 2.24 [CI, 1.52 to 3.32] and 2.42 [CI, 1.30 to 4.53], respectively). Women with normal-weight central obesity also had a higher mortality risk than those with similar BMI but no central obesity (HR, 1.48 [CI, 1.35 to 1.62]) and those who were obese according to BMI only (HR, 1.32 [CI, 1.15 to 1.51]). Expected survival estimates were consistently lower for those with central obesity when age and BMI were controlled for.
LIMITATIONS: Body fat distribution was assessed based on anthropometric indicators alone. Information on comorbidities was collected by self-report.
CONCLUSION: Normal-weight central obesity defined by WHR is associated with higher mortality than BMI-defined obesity, particularly in the absence of central fat distribution.
PRIMARY FUNDING SOURCE: National Institutes of Health, American Heart Association, European Regional Development Fund, and Czech Ministry of Health.