Gender differentials of abdominal obesity among the adults in the district of Colombo, Sri Lanka.
OBJECTIVE
To assess the gender-specific prevalence and determinants of abdominal obesity (AO) within the population and lifestyle diversity of an urban district in Sri Lanka.


METHODS
Prevalence of AO (defined by waist circumference) was estimated in a cross-sectional study of 1400 adults aged 20-64, residing in the district of Colombo in 2004. Demographic, socio-economic and lifestyle factors were assessed in gender-specific logistic regression models to identify determinants of AO.


RESULTS
Prevalence of AO was 44.7% (95% confidence interval (CI): 41.0, 48.5) in females and 25.7% (95% CI: 22.6, 29.0) in males. Significant determinants of AO were age 35-49 (adjusted odds ratio: 1.7; 95% CI: 1.2, 2.5), moderately urban sector (1.9; 1.3, 2.9) and insufficient level of physical activity (1.7; 1.1, 2.4) among females in contrast to household income >Rupees 10,000 (6.1; 2.7, 13.5), increased alcohol (medium: 1.9; 1.2, 2.9; high: 2.1; 1.2, 3.5), low-fiber diet (1.6; 1.1, 2.4) and frequent large meals (1.7; 1.0, 2.8) among males. Determinants common to males (M) and females (F) were age >or=50 years (M: 2.5; 1.5, 4.2 and F: 2.9; 1.9, 4.4), most urban sector (M: 2.0; 1.3, 3.1 and F: 1.8; 1.2, 2.7) and married status (M: 2.2; 1.3, 3.6 and F: 2.4; 1.6, 3.6).


CONCLUSIONS
A distinct gender differential was observed in the prevalence and determinants of AO. It appears vital that preventive strategies of AO be developed to be more 'gender-sensitive' in urban districts.
Arambepola
Carukshi
C
Department of Public Health and Primary Health Care, University of Oxford, Old Road Campus, Headington, Oxford OX3 7LF, UK. carukshi@yahoo.com
Ekanayake
Ruvan
R
Fernando
Dulitha
D
D050153:Abdominal Fat; D000328:Adult; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D009765:Obesity / Q000453:epidemiology* / Q000517:prevention & control; D015995:Prevalence; D012307:Risk Factors; D012737:Sex Factors; D013188:Sri Lanka / Q000453:epidemiology; D011795:Surveys and Questionnaires; D014504:Urban Health / Q000706:statistics & numerical data*