Laboratory tests
Sample collection and processing for hematological parameters was
carried out in EDTA-Ke tubes for the hemogram and according to the
criteria of the attending physician also in a tube with citrate as an
anticoagulant. The samples were immediately sent to the rapid response
laboratory of the participating centers where they were processed
following the protocol of each center. Anemia was defined according to
the WHO criteria, with Hb values <13g/dL for men and
<12g/dL for women24.
The patients were divided into two gropus based on whether they had or
did not have anemia using the previously mentioned criteria, with the
results of the Hb values of the analyses carried out during care in the
HED.