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1.
Public Health Nutr ; 8(6): 564-71, 2005 Sep.
Article in English | MEDLINE | ID: mdl-16236185

ABSTRACT

OBJECTIVES: To investigate the prevalence of anaemia and iron deficiency and vitamin A status among school-aged children in rural Kazakhstan and identify factors associated with anaemia in this population. DESIGN: A cross-sectional design. SETTING: School-aged children in rural Kazakhstan. SUBJECTS: Socio-economic and anthropometric information was collected from 159 school-aged children living in the Kzyl-Orda region of Kazakhstan. Blood samples were collected and the concentrations of haemoglobin (Hb), serum iron, serum ferritin (SF), erythrocyte protoporphyrin (EP), serum retinol and beta-carotene, total iron binding capacity (TIBC), transferrin saturation (TS) and other haematological indices were measured. RESULTS: Among the 159 children, the prevalence of anaemia and iron deficiency defined by the multiple criteria model (SF, TS and EP) was 27% and 13%, respectively. Nine per cent had iron-deficiency anaemia and 21% had serum retinol value < 1.05 micromol l(-1). Mean SF and serum iron concentrations and TS were significantly lower in anaemic children than in their non-anaemic peers, while TIBC and EP were significantly higher in children with anaemia. Hb was significantly correlated with serum iron and retinol concentrations. Serum retinol and SF concentrations and mean corpuscular volume were significantly correlated with Hb by multiple regression analysis. CONCLUSIONS: Anaemia among school-aged children in rural Kazakhstan appears to be related to iron indices and vitamin A status.


Subject(s)
Anemia, Iron-Deficiency/epidemiology , Iron Deficiencies , Vitamin A Deficiency/epidemiology , Adolescent , Adolescent Nutritional Physiological Phenomena , Anemia/blood , Anemia/epidemiology , Anemia, Iron-Deficiency/blood , Anthropometry , Child , Child Nutritional Physiological Phenomena , Cross-Sectional Studies , Female , Health Surveys , Humans , Iron/blood , Kazakhstan/epidemiology , Male , Nutrition Assessment , Nutritional Status , Rural Population , Seroepidemiologic Studies , Socioeconomic Factors , Surveys and Questionnaires , Vitamin A/blood , Vitamin A Deficiency/blood
2.
Arch Environ Health ; 58(11): 676-82, 2003 Nov.
Article in English | MEDLINE | ID: mdl-15702891

ABSTRACT

The saline Aral Sea in central Asia was once the 4th largest inland lake in the world. Desiccation of the Aral Sea as a result of diversion of inflow for irrigation has resulted in significant adverse health effects among residents of surrounding areas. This study was conducted to examine respiratory symptoms and function among children who lived in "the heavily affected disaster zone" (i.e., within 200 km of the Aral Sea), by comparing them with children who lived in "the slightly affected disaster zone" (i.e., located approximately 500 km from the Aral Sea). A questionnaire-based interview was conducted among 383 students 6-15 yr of age who lived in the study area and 432 students who lived in the reference area. Pulmonary function tests were completed by 337 children in the study area and 417 children in the reference area. Prevalence of current cough and current wheezing was higher among the study group participants. Percentage of predicted forced vital capacity (FVC% predicted) was lower in the study group (median = 96.6%) than in the reference group (median = 100.5%), and prevalence of restrictive pulmonary dysfunction was higher in the study group (10.6%) than in the reference group (2.6%). Multivariate analysis indicated that FVC% predicted was lower among females and in the study area, but was not associated with socioeconomic factors.


Subject(s)
Environmental Exposure/adverse effects , Respiration Disorders/epidemiology , Respiration Disorders/etiology , Adolescent , Child , Female , Humans , Kazakhstan/epidemiology , Male , Multivariate Analysis , Respiration Disorders/physiopathology , Respiratory Function Tests , Risk Factors , Rural Population/statistics & numerical data , Socioeconomic Factors
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