Exploring hematological parameters for the prediction of malaria: A focus on neutrophil to lymphocyte ratio and monocyte to lymphocyte ratio

Authors

  • Sundas Ali Pakistan Institute of Medical Sciences, Islamabad Pakistan
  • Maha Tariq Kiani Pakistan Institute of Medical Sciences, Islamabad Pakistan
  • Hina Bilal Federal Medical College (Pakistan Institute of Medical Sciences), Islamabad Pakistan
  • Amna Imtiaz Pakistan Institute of Medical Sciences, Islamabad Pakistan
  • Farah Hanif Pakistan Institute of Medical Sciences, Islamabad Pakistan
  • Ayesha Siddiqa Pakistan Institute of Medical Sciences, Islamabad Pakistan

DOI:

https://doi.org/10.55629/pakjpathol.v37i2.920

Abstract

Objectives: The aim of this study is to observe variations in various hematological parameters in malaria, to compare these variations between cases (malaria positive patients) and controls and to determine association of NLR and MLR with malaria.

Material and Methods: It was a prospective cross-sectional study conducted in the department of Pathology, PIMS Hospital, Islamabad between July 24 to December 24. A total of 105 malaria positive-cases and 105 control cases were included in the study. Consecutive non- probability sampling was done. For each case total white cell count, differential leucocyte count, absolute counts, hemoglobin and platelet counts were observed. From the above parameters NLR and MLR were obtained. To analyze the data SPSS 20 was used.

Results: Out of 105 malaria cases, 99 were of Plasmodium vivax, 4 of Plasmodium falciparum, and 2 of mixed infections. It was observed that total leukocyte count, neutrophil percentage, lymphocyte percentage, absolute lymphocyte count, absolute monocyte count, platelet count, NLR and MLR showed significant association with malaria while Hb, and absolute neutrophil count didn’t show a significant association with malaria.

Conclusion: NLR and MLR can play an important role in predicting malaria as inflammatory marker. Also, in malaria cases, altered platelet, WBC, and lymphocyte counts are vital indicators.

Keywords: Malaria, Neutrophil to lymphocyte ratio, monocyte to lymphocyte ratio, platelets

References

Gill R, Hora R, Alam MM, Bansal A, Bhatt TK, Sharma A. Frontiers in malaria research. Front Microbiol. 2023; 14: 1191773. DOI: https://doi.org/10.3389/fmicb.2023.1191773

Kotepui M, Kotepui KU, Milanez GD, Masangkay FR. Global prevalence and mortality of severe Plasmodium malariae infection: A systematic review and meta-analysis. Malar J. 2020; 19(1): 1-3. DOI: https://doi.org/10.1186/s12936-020-03344-z

Islam MR, Dhar PS, Rahman MM. Recently outbreak of malaria in current world: species, etiology, life cycle, transmission, symptoms, vaccination, diagnostic tests, treatment, and complications. Int J Surg. 2023; 109(2): 175-7. DOI: https://doi.org/10.1097/JS9.0000000000000165

Khattak AA, Venkatesan M, Nadeem MF, Satti HS, Yaqoob A, Strauss K, et al. Prevalence and distribution of human Plasmodium infection in Pakistan. Malar J. 2013; 12: 297. DOI https://doi.org/10.1186/1475-2875-12-297

Khan MI, Qureshi H, Bae SJ, Khattak AA, Anwar MS, Ahmad S, et al. Malaria prevalence in Pakistan: A systematic review and meta-analysis (2006–2021). Heliyon. 2023; 9(4): e15373. DOI https://doi.org/10.1016/j.heliyon.2023.e15373

Idemudia NL, Ogefere HO, Omoregie R. Use of some surrogate markers of inflammation as predictor of malaria severity. J Microbiol Infect Dis. 2021; 11(04): 201-8. DOI: https://doi.org/10.5799/jmid.1036763

Buonacera A, Stancanelli B, Colaci M, Malatino L. Neutrophil to lymphocyte ratio: An emerging marker of the relationships between the immune system and diseases. Int J Mol Sci. 2022; 23(7): 3636. DOI: https://doi.org/10.3390/ijms23073636

Philipose CS, Umashankar T. The role of haematological parameters in predicting malaria with special emphasis on neutrophil lymphocyte count ratio and monocyte lymphocyte ratio: A single Institutional experience. Trop Parasitol. 2016; 6(2): 147. DOI: https://doi.org/10.4103/2229-5070.190833

Jairajpuri ZS, Rana S, Hassan MJ, Nabi F, Jetley S. An Analysis of Hematological Parameters as a diagnostic test for malaria in patients with acute febrile illness: An institutional experience. Oman Med J. 2014; 29(1): 12-7. DOI https://doi.org/10.5001/omj.2014.04

Naqvi SWA, Saeed S, Rafique A, Saeed MH, Khan N, Khan A, et al. Prevalence and distribution of malaria by sex, age groups and species in year 2019 in suspected malarial population of district D.I.Khan, Pakistan. Gomal J Med Sci 2020; 18(4):164-73. DOI: https://doi.org/10.46903/gjms/18.04.938

Teklemariam A, Alemseged M, Adugna S. Malaria-intestinal helminthes co-infection among patients in wolkite health center and Attat hospital, gurage zone, southern Ethiopia. J Parasitol Vector Biol. 2018; 10(2): 26-32.

DOI: https://doi.org/10.5897/JPVB2017.0312

Ullah H, Khan MI, Suleman SK, Javed S, Qadeer A, Nawaz M, et al. Prevalence of malaria infection in district Dir lower, Pakistan. Punjab Univ J Zool. 2019; 34(2): 137-41. DOI: https://dx.doi.org/10.17582/journal.pujz/2019.34.2.137.141

Feleke DG, Gebretsadik D, Gebreweld A. Analysis of the trend of malaria prevalence in Ataye, North Shoa, Ethiopia between 2013 and 2017. Malar J. 2018; 17: 1-6. DOI https://doi.org/10.1186/s12936-018-2474-3

Zuberi UF, Aqeel S, Hashmi F, Khan W. Altered haematological parameters in children with malaria infection, a systematic review and meta-analysis. Diagn Microbiol Infect Dis. 2024:116190. DOI: https://doi.org/10.1016/j.diagmicrobio.2024.116190

Omarine Nlinwe N, Nange TB. Assessment of hematological parameters in malaria, among adult patients attending the Bamenda Regional Hospital. Anemia. 2020; 2020(1): 3814513. DOI: https://doi.org/10.1155/2020/3814513

Awoke N, Arota A. Profiles of hematological parameters in plasmodium falciparum and plasmodium vivax malaria patients attending Tercha general hospital, Dawuro Zone, South Ethiopia. Infect Drug Resist. 2019; 12: 521-27. DOI: https://doi.org/10.2147/IDR.S184489

Roy S, Saha DR, Ahmed R, Sharma NC, Mahanta P Sr. Haematological profile in patients with acute Falciparum Malaria: A hospital-based study. Cureus. 2024; 16(7): e63690. DOI https://doi.org/10.7759/cureus.63690

Gebreweld A, Erkihun Y, Feleke DG, Hailu G, Fiseha T. Thrombocytopenia as a Diagnostic marker for malaria in patients with acute febrile illness. J Trop Med. 2021: 5585272. DOI https://doi.org/10.1155/2021/5585272

Kumar M, Kumar A, Panwar P, Kant R. Correlation of presence and severity of thrombocytopenia with types and severity of malaria: A study from tertiary care center of North India. J Fam Med Prim Care. 2022; 11(7): 3929-33.

DOI: https://doi.org/10.4103/jfmpc.jfmpc_1884_21

Song M, Graubard BI, Rabkin CS, Engels EA. Neutrophil-to-lymphocyte ratio and mortality in the United States general population. Sci Rep. 2021; 11(1): 464. DOI: https://doi.org/10.1038/s41598-020-79431-7

Zahorec R. Neutrophil-to-lymphocyte ratio, past, present and future perspectives. Bratisl Lek Listy. 2021; 122(7): 474-88. DOI: https://doi.org/10.4149/BLL_2021_078

Freire-Antunes L, Ornellas-Garcia U, Rangel-Ferreira MV, Ribeiro-Almeida ML, de Sousa CH, Carvalho LJ, et al. Increased neutrophil percentage and neutrophil–t cell ratio precedes clinical onset of experimental cerebral malaria. Int J Mol Sci. 2023; 24(14): 11332. DOI: https://doi.org/10.3390/ijms241411332

Antwi-Baffour S, Kyeremeh R, Buabeng D, Adjei JK, Aryeh C, Kpentey G, et al. Correlation of malaria parasitaemia with peripheral blood monocyte to lymphocyte ratio as indicator of susceptibility to severe malaria in Ghanaian children. Malar J. 2018; 17: 1-9. DOI https://doi.org/10.1186/s12936-018-2569-x

Kotepui M, Phunphuech B, Phiwklam N, Chupeerach C, Duangmano S. Effect of malarial infection on haematological parameters in population near Thailand-Myanmar border. Malar J. 2014; 13: 1-7. DOI https://doi.org/10.1186/1475-2875-13-218

van Wolfswinkel ME, Vliegenthart-Jongbloed K, de Mendonça Melo M, Wever PC, McCall MB, Koelewijn R, et al. Predictive value of lymphocytopenia and the neutrophil-lymphocyte count ratio for severe imported malaria. Malar J. 2013; 12: 1-8. DOI: https://doi.org/10.1186/1475-2875-12-101

Downloads

Published

30-06-2026

How to Cite

1.
Ali S, Kiani MT, Bilal H, Imtiaz A, Hanif F, Siddiqa A. Exploring hematological parameters for the prediction of malaria: A focus on neutrophil to lymphocyte ratio and monocyte to lymphocyte ratio. Pak J Pathol [Internet]. 2026 Jun. 30 [cited 2026 Oct. 28];37(2):57-62. Available from: https://pakjpath.com/index.php/Pak-J-Pathol/article/view/920