Westhuyzen J, Steyn N P
Department of Haematology, School of Pathology, South African Institute for Medical Research, Johannesburg.
Trop Geogr Med. 1992 Jan;44(1-2):47-51.
The prevalence of anaemia and deficiencies of iron, folate and vitamin B12 were investigated in primary schoolchildren of mixed ethnic origin living in four towns in a remote semi-desert area of southern Africa, the Richtersveld. Anaemia was uncommon (6.3%); iron and vitamin B12 deficiencies were not observed. Sub-normal erythrocyte folate concentrations were present in 14.5%, but significant folate deficiency was rare (less than 2%). There were negligible differences in the haematological parameters of the children in the four towns, even though children living in Kuboes received milk at school and children at Dryfsandt a lunch of milk, brown bread and margarine. The results support the general observation that schoolchildren are not a risk group for nutritional anaemia.
在非洲南部偏远半沙漠地区里氏veld的四个城镇中，对不同种族混合的小学生的贫血症以及铁、叶酸和维生素B12缺乏症的患病率进行了调查。贫血并不常见（6.3%）；未观察到铁和维生素B12缺乏症。红细胞叶酸浓度低于正常水平的情况占14.5%，但严重叶酸缺乏症很少见（不到2%）。尽管居住在库伯斯的儿童在学校喝牛奶，而德赖夫桑德的儿童午餐有牛奶、黑面包和人造黄油，但这四个城镇儿童的血液学参数差异可忽略不计。这些结果支持了一个普遍的观察结果，即学童不是营养性贫血的风险群体。
