Anaemia in schoolchildren in eight countries in Africa and Asia

Objective: To report on the haemoglobin concentrations and prevalence of anaemia in schoolchildren in eight countries in Africa and Asia. Design: Blood samples were collected during surveys of the health of schoolchildren as a part of programmes to develop school-based health services. Setting: Rural schools in Ghana, Indonesia, Kenya, Malawi, Mali, Mozambique, Tanzania and Vietnam. Subjects: Nearly 14 000 children enrolled in basic education in three age ranges (7-11 years, 12-14 years and >/= 15 years) which reflect the new UNICEF/WHO thresholds to define anaemia. Results: Anaemia was found to be a severe public health problem (defined as >40% anaemic) in five African countries for children aged 7-11 years and in four of the same countries for children aged 12-14 years. Anaemia was not a public health problem in the children studied in the two Asian countries. More boys than girls were anaemic, and children who enrolled late in school were more likely to be anaemic than children who enrolled closer to the correct age. The implications of the four new thresholds defining anaemia for school-age children are examined. Conclusions: Anaemia is a significant problem in schoolchildren in sub-Saharan Africa. School-based health services which provide treatments for simple conditions that cause blood loss, such as worms, followed by multiple micronutrient supplements including iron, have the potential to provide relief from a large burden of anaemia

An association between chronic undernutrition and educational test scores in Vietnamese children

OBJECTIVE: To examine the association between results of educational tests and the anthropometric status of schoolchildren. DESIGN: Cross-sectional data collected during the baseline survey of a randomised trial. SETTING: Eighty-one primary schools in three districts of northern Vietnam. SUBJECTS: A total of 3055 schoolchildren enrolled in class 3 and born in 1990. MAIN OUTCOME MEASURES: Tests of mathematics and Vietnamese language developed not to show floor or ceiling effects, and Z-scores of height-for-age, weight-for-age and weight-for-height. RESULTS: After controlling for age, sex, district and school the results of test scores in both mathematics and Vietnamese were significantly negatively correlated with Z-scores of height-for-age (P<0.001) and weight-for-age (P<0.001), but not with weight-for-height (P=0.75). CONCLUSIONS: A cross-sectional negative association was observed in Vietnamese primary school children between indicators of chronic undernutrition and tests of educational achievement. SPONSORSHIP: The study was funded by donors to the Partnership for Child Development including the Rockefeller Foundation and the World Bank