The prevalence and the etiology of the nutritional anemias in Guyana.

A survey was carried out in Guyana to determine the prevalence and the etiology of the nutritional anemias among both sexes, in various age groups, and in pregnant and lactating women. The sample consisted of 590 subjects drawn from 103 households selected by multistage cluster sampling. Anthropometric and hematological measurements and stool investigations for intestinal parasites were carried out in each subject. Socioeconomic and other demographic data were obtained for each household. High prevalences of anemia, although of a relatively mild degree, were found among all age groups especially among pregnant and lactating women. The major factors related to Hb levels were found to be inadequate consumption of food rich in the erythropoietic nutrients, iron deficiency, age, sex, pregnancy, household income, and percentage of household income spent on food. A number of socioeconomic and other demographic variables were associated with anemia. More anemia was found in urban than in rural areas.