Journals / Türk Kardiyoloji Derneği Arşivi / 2003 / Cilt: 31 - Sayı: 2
Indices of abdominal obesity and obesity in Turkish adults: Influence on levels of insulin, glucose intolerance, inflammation and on coronary prediction
- Pages
- 65–73
- DOI
- —
Abstract
In the old and newly recruited cohorts of the Turkish Adult Risk Factor Study consisting of 2350 men and women (mean age 52±12 years), body mass index (BMI), waist circumference and waist-to-hip ratio (WHR) were assessed cross sectionally and prospectively. Coronary heart disease (CHD) was diagnosed based on clinical findings and Minnesota coding of resting electrocardiograms. At standardized age, mean waist circumference and BMI in men were 90.7 cm and 27.3 kg/m2, respectively, and in women 90.8 He 29.1 kg/m2, respectively. It is estimated that 10.5 million adults (22.6% of men and 61% of women) inTurkey may be designated to have abdominal obesity. Following difference in magnitude or ratio of variables existed across the highest and lowest quintiles of waist circumference: 22 mg/dl in apolipoprotein (apo) B, 3.5-fold to 2-fold in C-reactive protein (CRP), 2 to 2.4-fold in fasting scrum insulin concentrations. Furthermore, diabetes was more frequent by 2.2-fold in men and by 4.8-fold in women across these quintiles In a logistic regression analysis over a 4-year follow-up, waist circumference significantly predicted nonfatal and/or fatal CHD risk in men, and among men and women combined, independent of 9 other salient risk factors, imparting 35 % excess risk for each increment of 12 cm (= I SD) of waist circumference. In the presence of the latter, BMI failed to contribute to CHD prediction. It was concluded that abdominal obesity in Turkish adults not only substantially elevated the concentrations of important cardiovascular risk factors such as serum apo B. insulin. CRP. and the prevalence of type II diabetes, hut also contributed independently to cardiovascular morbidity and mortality, particularly among men. The "curve" between CHI) risk and the stated atherogenic risk factors suggested that Turkish men with a waist circumference of 96 cm should he considered at the "action level". These findings should guide future public heart health policies.
Özet
TEKHARF çalışmasının eski ve geçen yıl yeni alınan kohortunu oluşturan 2350 kişide (ortalama yaş 52+12) bel çevresi, bel kalça oranı (B/K) ve beden kitle indeksi (BKİ) cinsiyet ve yaş grupları katmanlamasıyle hem kesitsel olarak, hem de son 4 yıldaki değişimler değerlendirildi. KKH tanısı anaınnezde angina varlığı ve 12-derivasyonhı istirahat EKG'tnın Minnesota kodlaınasına dayanılarak kondu. Yaş-standardizasyonlu ortalama değerler 30 yaşını aşkın nüfusta erkekler için sırasıyla 90.7 cm ve 27.3 kg/m2, kadınlarda 90.8 ile 29.1 kg/m2 bulundu. Net değişimler bağlamında, ortalama BKİ son 4 yılda her iki cinsiyette 1,3 kg/m2 artarken, bel çevresi erkekte 2.7 cm azaldı, kadında l .3 cm genişledi. Giderek artan bestebir dilimlere bölünen bel çevresinin üst ve alt dilimleri arasında, erkek ve kadında sırasıyla ortalama apo B değerlerinde 22 mg/dl ölçüsünde, açlık insülin konsantrasvonlarında 2 ila 2.4 kat, duyarlı C-reaktif protein 'de (CRP) 3.5 ila 2 kat farklar gözlemlendi. Üstelik, diyabet prevalansı da, alt dilime kıyasla üst dilimde erkekte 2.2. kadında 4,8 kat daha sıktı. Anılan risk parametreleri erkeklerde 96 cm'lik bel genişliğinden itibaren yüksek bulundu (p