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Dang Thuy Linh Nguyen Thanh Liem

Underweight and Overweight in Vietnamese adults living in Thai Nguyen province. Dang Thuy Linh Nguyen Thanh Liem. Introductions. Overweight and obesity have increased markedly in recent decades in developed and developing countries. In developing countries, underweight is still prevalent

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Dang Thuy Linh Nguyen Thanh Liem

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  1. Underweight and Overweight in Vietnamese adults living in Thai Nguyen province Dang Thuy Linh Nguyen Thanh Liem

  2. Introductions • Overweight and obesity have increased markedly in recent decades in developed and developing countries. • In developing countries, underweight is still prevalent • Both underweight and overweight are at increased risk of mortality • Weight increases has increasing risks of many disease such as: diabetes, hypertension, stroke, cancer • Body mass index (BMI) is a simple index of weight-for-height that is commonly used to classify underweight, overweight and obesity in adults

  3. Introductions (cont.) • In Vietnam (2002) • The prevalence of overweight was 5.7% (overweight defined as BMI ≥ 25 kg/m2) • The prevalence of underweight was 24.8% • Underweight remains the concern and overweight is an emerging problem.

  4. Introductions (cont.) • In this study, we focused on these issues in Thai Nguyen - a unique province with rural and minority population in the North of Vietnam. • Objective: Determining the prevalence of underweight, overweight and the pattern of these issues in Thai Nguyen population.

  5. Method • Data from a population-based and cross-sectional study in Thai Nguyen province. • This survey collects data from the adults living in Thai Nguyen aged 18+ • 2672 participants completed the questionnaire. • 2630 participants were measured weight and height. • The estimated population size will be 805,500

  6. Description of variables

  7. Results • The mean BMI was 20.4 kg/m2 (sd=2.5) • Prevalence of BMI category based on the estimated population size: N = 789526

  8. The prevalence of overweight increased with age and was slightly higher in males than females. • Male had 1.2 times higher risk of overweight than female (p<0.01)

  9. The prevalence of underweight decreased and the prevalence of overweight increased with the education level.

  10. Results (cont.) • People living in urban areas had a higher prevalence of overweight (OR= 1.6; p < 0.1; 95%CI = 0.9 – 2.7) and lower prevalence of underweight (OR=0.4; p<0.01; 95%CI = 0.2-0.6) • People who was lowest household income per capita quintile had higher prevalence of underweight than people who was highest household income per capita quintile. • People who was highest household income per capita quintile had 2.1 times higher risk of overweight than people who was lowest household income per capita quintile (p<0.01; 95%CI=1.3–3.7).

  11. Discussions • The results from this survey show that both underweight and overweight are present in Thai Nguyen population • The mean BMI in TN was lower than other cities: HN, Hai Phong • In urban areas • The prevalence of overweight in TN (25%) was lower than HCMC (32.6%) and Hanoi (28.5%) • The prevalence of underweight in TN (10.8%) was lower than HCMC (20.4%) & Hanoi (13.6%) • In rural areas • The prevalence of underweight in TN (24.6%) is higher than Hai Phong (14.2%) • The prevalence of overweight in TN (11.3%) is lower than Hai Phong (21.6%)

  12. Discussions (cont.) • The prevalence of overweight in females were slightly lower than males, but the prevalence of underweight was higher in females than males. • This result in Thai Nguyen is the reverse of the pattern usually seen in many countries where women showed a greater BMI distribution with higher overweight rates than men.

  13. Discussions (cont.) • The pattern of underweight in age group in TN is similar to Hanoi: the highest prevalence of underweight focused on youngest and oldest groups. • In HCMC, the prevalence of underweight decreased from the youngest to oldest group. • The same with other studies in Vietnam, the increasing prevalence of overweight associated with higher economic status. This pattern is difference with others research in the world where overweight is usually associated with poverty

  14. Limitations • The measure of underweight and overweight was based on BMI. • In future studies, waist circumference, food expenditure level, nutrition status should be added.

  15. Conclusions • A clear prevalence of underweight and overweight in Thai Nguyen. • These results may be helpful for policy makers in order to develop nutrition and health program for people in Thai Nguyen province. • Appropriate public health policies are needed to deal with both problems. • Other surveys are required to determine related factors.

  16. Thank for your listening !

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