Race-related differences in peripheral blood and in bone marrow cell populations of American black and American white infants.

The present study confirms that in healthy infants, a racial difference exists in peripheral blood hemoglobin levels, total leukocyte, and total neutrophil counts. Racial differences in the composition of the bone marrow are negligible. The only demonstrable difference is confined to the erythroid cell population. No significant difference exists in the incidence of myeloid cells or small lymphocytes.