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Articles

World Health Organization Hemoglobin Cut-Off Points for the Detection of Anemia Are Valid for an Indonesian Population¹

Helda Khusun, Ray Yip^*,2, Werner Schultink³ and Drupadi H. S. Dillon

SEAMEO-TROPMED Regional Center for Community Nutrition, University of Indonesia, Salemba, Jakarta 10430, Indonesia; ^* UNICEF Indonesia, Jakarta 12920, Indonesia; and Deutsche Gesellschaft fur Technische Zusammenarbeit, Eschborn, Germany

³To whom correspondence should be addressed at UNICEF Headquarters, New York, NY.

The study was designed to determine whether population-specific hemoglobin cut-off values for detection of iron deficiency are needed for Indonesia by comparing the hemoglobin distribution of healthy young Indonesians with that of an American population. This was a cross-sectional study in 203 males and 170 females recruited through a convenience sampling procedure. Hemoglobin, iron biochemistry tests and key infection indicators that can influence iron metabolism were analyzed. The hemoglobin distributions, based on individuals without evidence of clear iron deficiency and infectious process, were compared with the National Health and Nutrition Survey (NHANES) II population of the United States. Twenty percent of the Indonesian females had iron deficiency, but no male subjects were iron deficient. The mean hemoglobin of Indonesian males was similar to the American reference population at 152 g/L with comparable hemoglobin distribution. The mean hemoglobin of the Indonesian females was 2 g/L lower than that of the American reference population, which may be the result of incomplete exclusion of subjects with milder form of iron deficiency. When the WHO cutoff (Hb < 120 g/L) was applied to female subjects, the sensitivity of 34.2% and specificity of 89.4% were more comparable to the test performance for white American women, in contrast to those of the lower cut-off. On the basis of the finding of hemoglobin distribution of men and the test performance of anemia (Hb < 120 g/L) for detecting iron deficiency for women, it is concluded that there is no need to develop different cut-off points for anemia as a tool for iron-deficiency screening in this population.

KEY WORDS: • hemoglobin • anemia • iron deficiency • humans • screening

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