Age patterns in stunting and anaemia in African schoolchildren: a cross-sectional study in Tanzania

Abstract
Objective: To describe the nutritional status of schoolchildren from a rural area of Tanzania, with a particular emphasis on older adolescents to determine the timing of the growth spurt and differences by sex. Design: A cross-sectional survey using a randomly selected sample. Subjects: Six thousand eight hundred and one children aged 7–18 y randomly selected from those enrolled in standards 2–5 in 59 primary schools in Magu District, Tanzania. Results: Overall, 52.5% of children were stunted and 43.0% were underweight, with significantly more boys stunted and underweight than girls. Z-scores of height-for-age for both boys and girls decreased progressively between 7 and 12 y. After 12 y the height-for-age z-scores of girls show a marked upturn, whilst z-scores for boys continue to decrease throughout the school-aged years until 16 y when a slight upturn is observed. Anaemia (HbEuropean Journal of Clinical Nutrition (2000) 54, 36–40