PS 06-10 TRENDS IN BODY BUILD, BLOOD PRESSURE AND HYPERTENSION IN URBAN CONGOLESE PEOPLE

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Abstract

Objective:

To assess the trends overtime in the prevalence of overweight/obesity and hypertension among urban adult Congolese people.

Design and method:

Data on overweight/obesity and hypertension obtained in 2007–8 among 1292 inhabitants were confronted to observations of a 1983–4 survey of 424 subjects from the same Congolese community. Variables were expressed as age-adjusted means or prevalences. We modeled the risk of hypertension in a multivariable logistic regression analysis including the participants from the two periods.

Results:

Women represented 56.6% of participants in 2007–8, 55.2% in 1983–4. Age averaged 37 ± 15years in 2007–8 vs 33 ± 12years in 1983–4 (P = 0.0001). In 2007–8 crude prevalence of overweight/obesity was 15.5%, 14.1% and 16.6% higher for both genders, women and men, respectively. Respective differences were 9.4%, 16.7% and 0.3% for hypertension. Overweight/obesity predominated in women, hypertension among men in 1983–4 only. Age-adjusted prevalence of overweight/obesity was higher in 2007–8 in all subjects [30 (25.6–34.4)% vs 41.2 (38.7–43.8)%], women [40.5 (34.3–46.6)% vs 49.8 (46.4–53.3)%] and men [17 (11.1–22.9)%vs 30.1 (26.7–33.5)%]. The trend in age-adjusted prevalence of hypertension was significant only for women [19.9 (14.7–25)% vs 30.2 (27.3–33.1)%]. Age-adjusted prevalence of hypertension was 3.4 (-1.1–7.9)% and 10.1 (4.3–16.3)% higher for both genders combined and women, respectively; it was 5.1 (-1.6–11.9)% lesser in men. The rates of awareness, treatment and control of hypertension similar in women and men in 1983–4 were higher among women in 2007–8. In the logistic model, the risk of hypertension increased with gender (OR for men vs women: 1.47[95% CI:1.14–1.88]; P = 0.0029), age (for age 45 years or more: 5.62[4.37–7.23];P < 0.0001), and overweight/obesity (present vs absent; 2.27[1.77–2.91]; P < 0.0001); it was 35% higher in 2007–8 (OR:1.35;95% CI: 1.01–1.80; P = 0.0416).

Conclusions:

These data highlight the increment of the prevalence of overweight/obesity and hypertension in Congolese people and suggest the control of these features is mandatory for prevention of cardiovascular diseases.

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