a1 Institut de Recherche en Sciences de la Santé (IRSS), 03 BP 7192 Ouagadougou, Burkina Faso
a2 Institut de Recherche pour le Développement, Ouagadougou, Burkina Faso
a3 Centre Murraz, Bobo Dioulasso, Burkina Faso
a4 Université Paris X-Nanterre, Nanterre, France
Objectives To document the prevalence and the socio-spatial variations of obesity and to identify individual and household characteristics, lifestyles and dietary practices contributing to obesity and its socio-spatial distribution.
Design Population-based cross-sectional survey. We selected 1570 households from four strata characterised as unstructured and low building-density (ULBD), unstructured and high building-density (UHBD), structured and low building-density (SLBD) and structured and high building-density (SHBD) areas. Structured areas are those that were allotted by the township authority (cadastral services), with public services; unstructured areas refer to those developed with no cadastral organisation.
Setting Ouagadougou, the capital city of Burkina Faso.
Subjects BMI was calculated in 2022 adults aged 35 years and above who were classified as obese when their BMI was ≥30 kg/m2. Obesity was investigated in relation to household and individual characteristics, lifestyles and dietary practices; adjusted odds ratios with 95 % confidence intervals were derived from a logistic regression model.
Results The overall prevalence of obesity was 14·7 % (males 5·5 % and females 21·9 %). Age, gender, household equipment index, usual transport with motor vehicles and micronutrient-rich food consumption were associated with obesity. After adjustment for these factors, obesity remained associated with the area of residence: residents from SHBD areas were more likely to be obese than those from ULBD areas (OR = 1·41; 95 % CI 2·59,4·76).
Conclusions Obesity in Ouagadougou is a preoccupant problem that calls for more consideration. Thorough investigation is needed to assess the environmental factors that contribute to the socio-spatial disparity of obesity.
(Received May 04 2007)
(Accepted April 03 2008)