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Evaluation of dichlorophenolindophenol (DCIP) test for haemoglobin e (Hb E) in normal red cell indices individuals
Mohd. Fauzi Mohd. Yusoff1, Eusni Rahayu Mohd Tohit2, Hafizah Hashim3, Zainina Seman4.
Introduction: The current cut-off value for thalassaemia screening is based on a mean corpuscular haemoglobin (MCH) level of less than 27 pg. Samples with MCH < 27 pg require additional confirmatory testing, while samples with MCH > 27 pg are considered normal. However, there is a possibility of missing some types of haemoglobinopa- thy such as haemoglobin (Hb) E trait, by using this cut-off value. This study aimed to evaluate the dichloroindophenol (DCIP) test for Hb E carriers within healthy individuals. Methods: In total, 200 leftover blood samples with normal full blood count (FBC) results and MCH  27 pg were collected from students who were involved in the thalassaemia screening program. Blood samples were screened for Hb E by the DCIP test and subjected to haemoglobin analysis using capillary electrophoresis (CE) and gel electrophoresis. Results: Of the 200 leftover blood samples with normal FBC indices, 10 were positive for the DCIP test of which 8 had Hb E trait and 2 had Hb Constant Spring. The DCIP test showed 100% sensitivity and 98.96% specificity with a 100% negative predictive value (NPV) and an 80.0 % positive predictive value (PPV). Conclusion: The DCIP test was an excellent screening tool that, when combined with FBC parameters can produce better results, particularly in areas with a high Hb E incidence.
Affiliation:
- Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
- Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
- Hospital Sultanah Bahiyah, 05460 Alor Setar, Malaysia
- Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
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Indexation |
Indexed by |
MyJurnal (2021) |
H-Index
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3 |
Immediacy Index
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0.000 |
Rank |
0 |
Indexed by |
Scopus 2020 |
Impact Factor
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CiteScore (0.2) |
Rank |
Q4 (Medicine (all)) |
Additional Information |
SJR (0.144) |
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