RT Journal Article SR Electronic T1 Underdiagnosis of iron deficiency anaemia in HIV-infected individuals: a pilot study using soluble transferrin receptors and intensive bone marrow iron stores to improve the diagnosis JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP jclinpath-2022-208172 DO 10.1136/jcp-2022-208172 A1 Mahlatse Mankgele A1 Ebrahim Variava A1 Tumelo Moloantoa A1 Kennedy Otwombe A1 Khuthadzo Hlongwane A1 Dineo Disenyane A1 Meshack Bida A1 Raylton Chikwati A1 Tracy Snyman A1 Neil Martinson A1 Johnny Mahlangu YR 2022 UL http://jcp.bmj.com/content/early/2022/09/27/jcp-2022-208172.abstract AB Aim We compared soluble transferrin receptors (sTfR), serum ferritin, mean cell volume (MCV) of red cells and the sTfR-ferritin index with the intensive method bone marrow trephine (BMT) iron stores in the diagnosis of iron deficiency anaemia (IDA) in Human Immunodeficiency Virus (HIV)-positive hospitalised participants.Methods In this cross-sectional study, we recruited hospitalised (HIV)-positive and coronavirus of 2019 (COVID-19)-negative adults with anaemia who required a bone marrow examination as part of their diagnostic workup. We measured the full blood count, ferritin, sTfR and assessed iron using the intensive method in Haemotoxylin and Eosin (H&E)-stained BMT core biopsies of consenting participants.Results Of the 60 enrolled participants, 57 were evaluable. Thirteen (22.80%) had IDA on H&E BMT iron stores assessment, and 44 (77.19%) had anaemia of chronic diseases (ACD). The sTfR and the sTfR-ferritin index had sensitivities of 61.54% and 53.85%, respectively, for IDA diagnosis. The sensitivity and specificity of ferritin was 7.69% and 92.31%, respectively. The sTfR and sTfR-ferritin index’s diagnostic specificity was relatively low at 46.15% and 38.46%, respectively.Conclusion In this pilot study in HIV-positive participants, the prevalence of iron deficiency using the BMT assessment was low. Both the sTfR and the sTfR-ferritin index had a better quantitative correlation to bone marrow iron stores when compared with the MCV and ferritin and, may be more accurate surrogate markers of IDA.Data are available upon reasonable request.