Skip to main content
Postgraduate Medical Journal logoLink to Postgraduate Medical Journal
. 1987 Apr;63(738):257–261. doi: 10.1136/pgmj.63.738.257

'Neutropenia' in black west Indians.

A V Zezulka 1, J S Gill 1, D G Beevers 1
PMCID: PMC2428154  PMID: 3684833

Abstract

A prospective case control study routine haematological parameters was conducted in 294 healthy Black and White age/sex-matched subjects. The most important finding relevant to clinical practice was a reduction of total white cell count in Blacks due mainly to reduced neutrophil numbers. Twenty-one percent of sickle negative Blacks had white cell counts below the lowest value seen in Whites. The haemoglobin concentration, erythrocyte mean cell volume and monocyte count were also significantly lower amongst Blacks though lymphocyte counts were higher. The racial differences in haemoglobin and white count were not accounted for by differences in smoking and drinking habits. They were also found when Blacks with sickle cell trait were compared to age/sex-matched Whites and in others taking the oral contraceptive pill. Awareness of racial group should aid interpretation of routine tests and avoid unnecessary investigation of normal 'neutropenic' Blacks.

Full text

PDF
257

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Bain B. J., England J. M. Normal haematological values: sex difference in neutrophil count. Br Med J. 1975 Feb 8;1(5953):306–309. doi: 10.1136/bmj.1.5953.306. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Bain B. J., Wickramasinghe S. N. Relationship between the concentration of neutrophils and monocytes in venous blood. Acta Haematol. 1976;55(2):89–94. doi: 10.1159/000207999. [DOI] [PubMed] [Google Scholar]
  3. Bain B., Seed M., Godsland I. Normal values for peripheral blood white cell counts in women of four different ethnic origins. J Clin Pathol. 1984 Feb;37(2):188–193. doi: 10.1136/jcp.37.2.188. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Broun G. O., Jr, Herbig F. K., Hamilton J. R. Leukopenia in Negroes. N Engl J Med. 1966 Dec 22;275(25):1410–1413. doi: 10.1056/NEJM196612222752504. [DOI] [PubMed] [Google Scholar]
  5. Dozy A. M., Kan Y. W., Embury S. H., Mentzer W. C., Wang W. C., Lubin B., Davis J. R., Jr, Koenig H. M. alpha-Globin gene organisation in blacks precludes the severe form of alpha-thalassaemia. Nature. 1979 Aug 16;280(5723):605–607. doi: 10.1038/280605a0. [DOI] [PubMed] [Google Scholar]
  6. Ezeilo G. C. Non-genetic neutropenia in Africans. Lancet. 1972 Nov 11;2(7785):1003–1004. doi: 10.1016/s0140-6736(72)92409-9. [DOI] [PubMed] [Google Scholar]
  7. Garn S. M., Smith N. J., Clark D. C. Letters to the editor: The magnitude and the implications of apparent race differences in hemoglogin values. Am J Clin Nutr. 1975 Jun;28(6):563–566. doi: 10.1093/ajcn/28.6.563. [DOI] [PubMed] [Google Scholar]
  8. Garn S. M., Smith N. J., Clark D. C. Lifelong differences in hemoglobin levels between Blacks and Whites. J Natl Med Assoc. 1975 Mar;67(2):91–96. [PMC free article] [PubMed] [Google Scholar]
  9. Gavras I., Gavras H. Leukopenia: idiopathic or drug-induced? N Engl J Med. 1982 Feb 25;306(8):484–484. doi: 10.1056/nejm198202253060812. [DOI] [PubMed] [Google Scholar]
  10. Higgs D. R., Pressley L., Old J. M., Hunt D. M., Clegg J. B., Weatherall D. J., Serjeant G. R. Negro alpha-thalassaemia is caused by deletion of a single alpha-globin gene. Lancet. 1979 Aug 11;2(8137):272–276. doi: 10.1016/s0140-6736(79)90290-3. [DOI] [PubMed] [Google Scholar]
  11. Higgs D. R., Pressley L., Serjeant G. R., Clegg J. B., Weatherall D. J. The genetics and molecular basis of alpha thalassaemia in association with Hb S in Jamaican Negroes. Br J Haematol. 1981 Jan;47(1):43–56. doi: 10.1111/j.1365-2141.1981.tb02760.x. [DOI] [PubMed] [Google Scholar]
  12. Howells D. P. Neutropenia in people of African origin. Lancet. 1971 Dec 11;2(7737):1318–1319. doi: 10.1016/s0140-6736(71)90636-2. [DOI] [PubMed] [Google Scholar]
  13. Karayalcin G., Rosner F., Sawitsky A. Pseudo-neutropenia in American Negroes. Lancet. 1972 Feb 12;1(7746):387–387. doi: 10.1016/s0140-6736(72)92893-0. [DOI] [PubMed] [Google Scholar]
  14. Kraemer M. J., Hunter R., Rosse C., Smith N. J. Race-related differences in peripheral blood and in bone marrow cell populations of American black and American white infants. J Natl Med Assoc. 1977 May;69(5):327–331. [PMC free article] [PubMed] [Google Scholar]
  15. Orfanakis N. G., Ostlund R. E., Bishop C. R., Athens J. W. Normal blood leukocyte concentration values. Am J Clin Pathol. 1970 May;53(5):647–651. doi: 10.1093/ajcp/53.5.647. [DOI] [PubMed] [Google Scholar]
  16. Shaper A. G., Lewis P. Genetic neutropenia in people of African origin. Lancet. 1971 Nov;2(7732):1021–1023. doi: 10.1016/s0140-6736(71)90335-7. [DOI] [PubMed] [Google Scholar]
  17. Shija A. K., Wosornu L., Kasobe L. Haematological norms in Zambians with special reference to chemotherapy. Med J Zambia. 1978 Aug-Sep;12(4):90–92. [PubMed] [Google Scholar]

Articles from Postgraduate Medical Journal are provided here courtesy of BMJ Publishing Group

RESOURCES