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Performance of the Haemoglobin Colour Scale in diagnosing severe and very severe anaemia

Montresor, A., Ramsan, M., Khalfan, N., Albonico, M., Stoltzfus J, R. and Tielsch M., J. (2003) Performance of the Haemoglobin Colour Scale in diagnosing severe and very severe anaemia. Tropical Medicine and International Health, 8 (7). pp. 619-624.

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objective To assess the accuracy of Haemoglobin Colour Scale (HCS) in identifying severely anaemic
[haemoglobin (Hb) <7 g/dl] and very severely anaemic (Hb <5 g/dl) individuals, and to compare the
performances of a group of health workers using HCS after training with a standard method.
method The study consisted of two parts. In part 1, the performance of HCS was compared with
clinical examination in a hospital population of which more than 450 individuals were severely anaemic
and more than 120 very severely anaemic. Part 2 of the study was conducted in eight dispensaries where
the performances of 13 health workers using the colour scale were compared with the performances of
eight other health workers using clinical signs to estimate Hb.
results The colour scale was 92% sensitive for both severe anaemia and very severe anaemia and
performed better than clinical examination. Health workers who used the colour scale did better in
identifying anaemic and severely anaemic individuals, than those who used clinical examination.
conclusions The colour scale improves health workers� capacity to identify severely anaemic
individuals and could be used as a basis for referral. Although the diagnostic accuracy of the workers
using HCS varied widely, in most cases they did significantly better than those who used clinical
investigation alone.

Item Type: Article
Keywords: severe anaemia,haemoglobin colour scale,clinical signs,pallor
Subjects: Biomedical Science > Molecular biology
Divisions: Ifakara Health Institute > Health Systems
Depositing User: Mr Joseph Madata
Date Deposited: 29 Aug 2012 10:05
Last Modified: 29 Aug 2012 10:05

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