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Does the influence of obesity on prognosis differ in men and women? A study of obesity paradox in patients with acute coronary syndrome.

Abstract：

BACKGROUND:Recent studies have reported the existence of obesity paradox in acute coronary syndromes (ACS). However, the occurrence of obesity paradox in men and women has not yet been thoroughly investigated, even though both genders differ in patterns and incidence of obesity. AIM:Therefore, the aim of this study was to investigate whether obesity influence on outcomes of patients with ACS varies by gender. METHODS:This retrospective study included 341 patients admitted to hospital for treatment due to ACS in 2012. They were classified according to the World Health Organisation with use of body mass index (BMI) as normal weight, overweight, and obese. All patients received standard discharge medication. All-cause mortality was assessed during a mean follow-up time of 212 ± 121 days. RESULTS:There were 82 (24%) normal weight, 160 (47%) overweight, and 99 (29%) obese patients. There were 252 (73.9%) men. All-cause mortality was lower in the obese and overweight vs. normal weight male patients (1.4% vs. 3.3% vs. 13.1%, respectively, p = 0.009). There was a trend favouring the normal weight and obese vs. overweight women (4.8% vs. 3.6% vs. 17.5%, respectively, p = 0.103). In the general population, after adjustment, BMI increase by one reduced risk by 15.6% (p = 0.015), and obesity reduced risk by 50.8% (p = 0.056). Obesity reduced risk for men by 69.4% (p = 0.015), and BMI increase by one reduced risk for men by 22% (p = 0.002). BMI and obesity were independent prognostic factors in men, whereas no such phenomenon was observed in women. CONCLUSIONS:Only male patients seem to contribute to the obesity paradox observed in patients with ACS. The obesity paradox does not occur in female patients when considered separately. Obesity seems to have a different influence on outcomes in both genders, and this might be worthy of further studies.

journal_name

Kardiol Pol

journal_title

Kardiologia polska

authors

Migaj J,Prokop E,Straburzyńska-Migaj E,Lesiak M,Grajek S,Mitkowski P

doi

10.5603/KP.a2015.0087

subject

Has Abstract

pub_date

2015-01-01 00:00:00

pages

761-7

issue

eissn

0022-9032

issn

1897-4279

pii

VM/OJS/KP/9354

journal_volume

pub_type

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Does the influence of obesity on prognosis differ in men and women? A study of obesity paradox in patients with acute coronary syndrome.