Age- and gender variations in the prevalence of overweight and obesity in Eastern Kazakhstan

Tuesday, 19 August 2014
Exhibit hall (Dena'ina Center)
T Khaibullin , Semey State Medical University, Semey, Kazakhstan
A Khaibullina , Semey State Medical University, Semey, Kazakhstan
R Bikbaev , Semey State Medical University, Semey, Kazakhstan
R Mansurov , Semey State Medical University, Semey, Kazakhstan
A Kalieva , Semey State Medical University, Semey, Kazakhstan
B Ospanov , Semey State Medical University, Semey, Kazakhstan
Andrej M Grjibovski, PhD , Northern State Medical University, Arkhangelsk, Russia
INTRODUCTION:  Overweight and obesity are known risk factors for many health problems.  Their prevalence is an increasing public health problem in developing countries. Sporadic local publications suggest that the prevalence of overweight in Kazakhstan is increasing, although information from population-based studies is very scarce. Our aim was to assess the prevalence of overweight and obesity in a typical urban setting in East Kazakhstan.

METHODS: Altogether, 1,490 adults aged 20 and older (59.3% were women) participated in a cross-sectional in a city of Semey (population 315 thousand), East Kazakhstan. Height and weight were measured and body mass index (BMI) was calculated. The prevalence of overweight (BMI between 25.0 and <30.0 kg/m2) and obesity (BMI >=30.0 kg/m2) was studied across gender- and age-groups. 

RESULTS:  The overall prevalence of overweight and obesity were 38.4% (95% CI: 34.6-42.3) and 12.8% (95% CI: 11.2-14.0) among men and 25.8% (95% CI: 22.9-28.8) and 20.5% (95% CI: 17.9-23.3) among women. The prevalence of overweight in men progressively increased with age from 21.3% (95% CI: 15.2-28.4) among 20-29 year-olds to 50.0% (95% CI: 0.36-0.64) in 70+ year-olds. The proportion of obese men varied between 3.1% (95% CI: 1.0-7.1) among the youngest and 25.8% (95% CI: 15.8-38.0) among 60-69-year-olds. Among women the lowest and the highest prevalence of overweight were observed respectively in age-groups 20-29 years (10.2%, 95% CI: 6.7-14.8) and 50-59 years (42.6%, 95% CI: 34.5-50.9). The prevalence of female obesity varied between 1.6% (95% CI: 0.04-4.1) among 20-29 years-olds to 41.3 (95% CI: 31.9-51.1).

CONCLUSIONS:  The prevalence of overweight and obesity in Semey, East Kazakhstan is alarmingly high, particularly among women after 50 years. Men have higher prevalence of overweight while women have higher prevalence of obesity. Variations across age groups are more pronounced among women. Factors behind these findings will be discussed.

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