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BMJ Open. 2016 Sep 6;6(9):e009514. doi: 10.1136/bmjopen-2015-009514.

Prevalence and determinants of metabolic syndrome in Qatar: results from a National Health Survey.

Author information

1
Department of Public Health, Supreme Council of Health, Doha, Qatar.
2
Department of Global and Public Health, Weill Cornell Medical College, Doha, Qatar.
3
Office of the Dean, Weill Cornell Medical College, Doha, Qatar.
4
Department of Surgery and Department of Family Medicine, New York Medical College, Valhalla, New York, USA.
5
Division of Epidemiology and Biostatistics, European Institute of Oncology, Milan, Italy.

Abstract

OBJECTIVES:

To determine optimum measurements for abdominal obesity and to assess the prevalence and determinants of metabolic syndrome in Qatar.

DESIGN:

National health survey.

SETTING:

Qatar National STEPwise Survey conducted by the Supreme Council of Health during 2012.

PARTICIPANTS:

2496 Qatari citizens aged 18-64 representative of the general population.

PRIMARY AND SECONDARY OUTCOME MEASURES:

Measure of obesity (body mass index, waist circumference or waist-to-height ratio) that best identified the presence of at least 2 other factors of metabolic syndrome; cut-off values of waist circumference; frequency of metabolic syndrome.

RESULTS:

Waist circumference ≥102 for men and ≥94 cm for women was the best predictor of the presence of other determinants of metabolic syndrome (raised blood pressure, fasting blood glucose, triglycerides and reduced high-density lipoprotein cholesterol). Using these values, we identified 28% of Qataris with metabolic syndrome, which is considerably lower than the estimate of 37% calculated using the International Diabetes Federation (IDF) criteria. Restricting the analysis to participants without known elevated blood pressure, elevated blood sugar or diabetes 16.5% would be classified as having metabolic syndrome. In a multivariable logistic regression analysis, the prevalence of metabolic syndrome increased steadily with age (OR=3.40 (95% CI 2.02 to 5.74), OR=5.66 (3.65 to 8.78), OR=10.2 (5.98 to 17.6) and OR=18.2 (7.01 to 47.5) for those in the age group '30-39', '40-49', '50-59', '60-64' vs '18-29'; p<0.0001), decreased with increasing educational attainment (OR=0.61 (0.39 to 0.96) for those who attained 'secondary school or more' compared with 'less than primary school'; p=0.03) and exercise (OR=0.60 (0.42 to 0.86) for those exercising ≥3000 vs <600 MET-min/week; p=0.006) but was not associated with smoking or diet.

CONCLUSIONS:

Waist circumference was the best measure of obesity to combine with other variables to construct a country-specific definition of metabolic syndrome in Qatar. Approximately 28% of adult Qatari citizens satisfy the criteria for metabolic syndrome, which increased significantly with age. Education and physical activity were inversely associated with this syndrome.

KEYWORDS:

Metabolic syndrome; National health survey; Qatar; Waist circumference

PMID:
27601485
PMCID:
PMC5020868
DOI:
10.1136/bmjopen-2015-009514
[Indexed for MEDLINE]
Free PMC Article

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