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The Non-Iron-deficiency-related Difference in Hemoglobin Concentration Distribution between Black and Whites and between Men and Women

The relation of hemoglobin concentration to transferrin saturation had two distinct phases in the data of adult men and women (aged 18-44 years) collected in the first National Health and Nutrition Examination Survey (NHANES I): 1) a stable, linear phase of hemoglobin concentration in the range of n... Full description

Journal Title: American Journal of Epidemiology Dec 15, 1991, Vol.134(12), p.1410
Main Author: Pan, Wen-Harn
Other Authors: Habicht, Jean-Pierre
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0002-9262
Link: http://search.proquest.com/docview/1306655433/?pq-origsite=primo
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title: The Non-Iron-deficiency-related Difference in Hemoglobin Concentration Distribution between Black and Whites and between Men and Women
format: Article
creator:
  • Pan, Wen-Harn
  • Habicht, Jean-Pierre
subjects:
  • African Continental Ancestry Group
  • European Continental Ancestry Group
  • Hemoglobins -- Analysis
  • Transferrin -- Analysis
ispartof: American Journal of Epidemiology, Dec 15, 1991, Vol.134(12), p.1410
description: The relation of hemoglobin concentration to transferrin saturation had two distinct phases in the data of adult men and women (aged 18-44 years) collected in the first National Health and Nutrition Examination Survey (NHANES I): 1) a stable, linear phase of hemoglobin concentration in the range of normal transferrin saturation, and 2) a dramatic fall in hemoglobin concentration as the degree of transferrin saturation decreased below the linear range. This study confirmed that over the linear range of the hemoglobin concentration-transferrin saturation curve, where subjects were adequately iron-nourished, whites had systematically higher hemoglobin concentration values than blacks (0.61 g/dl); also, males had higher values than females (1.895 g/dl). The effects of race and sex on hemoglobin concentration were additive. The variance of the hemoglobin distribution in blacks was also greater than that in whites. Socioeconomic status and smoking status could not explain the above race and sex differences. The impact on the prevalence estimate of reducing the hemoglobin cut-off by 0.5 g/dl is substantial enough to justify a separate standard for blacks.
language: eng
source:
identifier: ISSN: 0002-9262
fulltext: fulltext
issn:
  • 00029262
  • 0002-9262
url: Link


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titleThe Non-Iron-deficiency-related Difference in Hemoglobin Concentration Distribution between Black and Whites and between Men and Women
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descriptionThe relation of hemoglobin concentration to transferrin saturation had two distinct phases in the data of adult men and women (aged 18-44 years) collected in the first National Health and Nutrition Examination Survey (NHANES I): 1) a stable, linear phase of hemoglobin concentration in the range of normal transferrin saturation, and 2) a dramatic fall in hemoglobin concentration as the degree of transferrin saturation decreased below the linear range. This study confirmed that over the linear range of the hemoglobin concentration-transferrin saturation curve, where subjects were adequately iron-nourished, whites had systematically higher hemoglobin concentration values than blacks (0.61 g/dl); also, males had higher values than females (1.895 g/dl). The effects of race and sex on hemoglobin concentration were additive. The variance of the hemoglobin distribution in blacks was also greater than that in whites. Socioeconomic status and smoking status could not explain the above race and sex differences. The impact on the prevalence estimate of reducing the hemoglobin cut-off by 0.5 g/dl is substantial enough to justify a separate standard for blacks.
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