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Southeast Asian J Trop Med Public Health ; 2006 Nov; 37(6): 1213-23
Article Dans Anglais | IMSEAR | ID: sea-35800

Résumé

Anemia is a significant public health problem in Vietnam, but representative national data and comprehensive risk factors analysis are lacking. The objectives of this study were to: 1) determine the distribution and severity of anemia in Vietnam, and 2) to assess potential risk factors for anemia. Nine thousand five hundred fifty households in 53 provinces were covered using a stratified two-stage cluster survey carried out in 1995. Selected household members were interviewed; intestinal helminthes were tested in non-pregnant women by Kato-Katz technique; hemoglobin concentrations were measured with Hemocue. Data were weighted and analyzed by survey procedures using SAS 9.0. Overall, 60% of children under 2 years old, 53% of pregnant women, 40% of non-pregnant women and 15.6% of men were anemic. Hookworm infection was the strongest factor associated with anemia (OR = 1.7; 2.9 and 4.5 for 11,999, 2,000-3,999 and > or = 4,000 hookworm egg counts, respectively) and accounted for 22% of anemia. Hookworm intensity was significantly associated with hemoglobin level; for each 1,000 egg increase, hemoglobin was reduced by 2.4 g/l. Living in different ecological zones, eating < 1 serving of meat/ week, and farming were significantly associated with anemia in women and children. Other risk factors in women included having > 3 children and having a child < 24 months old. In men, no variables were found significantly associated with anemia.


Sujets)
Adolescent , Adulte , Anémie par carence en fer/épidémiologie , Enfant , Enfant d'âge préscolaire , Analyse de regroupements , Caractéristiques familiales , Comportement alimentaire , Femelle , Enquêtes de santé , Helminthiase/épidémiologie , Humains , Mâle , Viande , Facteurs de risque , Santé en zone rurale , Indice de gravité de la maladie , Santé en zone urbaine , Vietnam/épidémiologie
2.
Southeast Asian J Trop Med Public Health ; 2006 Sep; 37(5): 865-74
Article Dans Anglais | IMSEAR | ID: sea-33905

Résumé

Intestinal helminth infections are a significant public health problem for Vietnamese women, but prevalence and risk factor data are scarce. The objectives of this paper were to (1) determine the prevalence of helminth infections among women; (2) investigate interactions among intestinal helminth species in individuals and (3) identify risk factors that contribute to intestinal helminth infections. In a nationwide survey conducted in 1995, 9550 households in 53 provinces were covered using a stratified two-stage cluster survey. Stool specimens were examined by Kato-Katz technique. Of 5,127 women, 76% were infected with one or more helminth species, 36% with hookworm, 59% with Ascaris lumbricoides and 28% with Trichuris trichiura. A. lumbricoides and T. trichiura were more likely to be concurrent than expected by chance. There was significant interaction between prevalence and intensity of infection in all three species. All three helminth species were more common in certain ecologic zones than others. Hookworm infection was associated with farming [Odd ratio (OR) = 2.1] and lack of a closed latrine (OR = 2.0), A. lumbricoides with use of untreated feces as fertilizer (OR = 1.2) and coinfection with T. trichiura (OR = 2.1) and T trichiura with A. lumbricoides co-infection (OR = 2.1). Our findings suggest that reproductive-age women, especially rural farmers, should be included among the high priority groups for helminth control programs through mass chemotherapy and improving sanitation.


Sujets)
Adulte , Fèces/parasitologie , Femelle , Comportement en matière de santé , Helminthiase/épidémiologie , Humains , Parasitoses intestinales/épidémiologie , Numération des oeufs de parasites , Prévalence , Facteurs de risque , Amélioration du niveau sanitaire , Vietnam/épidémiologie
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