GENDER DIFFERENCES IN COMPLETE BLOOD COUNT PARAMETERS: A COMPARATIVE HEMATOLOGICAL STUDY

Authors

  • Meerab Mustafa 2nd Year MBBS, Central Park Medical College, Pakistan. Author
  • Laiba Shafiq Butt 2nd Year MBBS, Central Park Medical College, Lahore, Pakistan. Author
  • Kaenat Zahid 2nd Year MBBS, Central Park Medical College, Lahore, Pakistan. Author
  • Maimoona Imran 2nd Year MBBS, Central Park Medical College, Lahore, Pakistan. Author
  • Hadia Tahir 2nd Year MBBS, Central Park Medical College, Lahore, Pakistan Author
  • Inzer Batool 2nd Year MBBS, Central Park Medical College, Lahore, Pakistan Author
  • Farah Naz Tahir Ph.D., FCPS, MPHIL, MBBS, CHPE, Principles of Biochemistry – Harvard University, USA, Associate Professor Author

DOI:

https://doi.org/10.48047/HM.V11.I2.2025.16-20

Keywords:

Gender differences, complete blood count, hematological parameters

Abstract

A comparative experimental investigation evaluated gender-based variations in complete blood count parameters among healthy adults. Recognizing known physiological nuances yet pursuing unexplored subtleties, this study aimed to quantify statistically significant differences across hematological indices in males versus females. In a sample sized via Epi Info to achieve 80 % power with α = 0.05, complete blood counts were compared, revealing that red blood cell count, hemoglobin concentration, hematocrit, and mean corpuscular volume exhibited significant gender-related disparities (p < 0.01), while platelet counts and white blood cell differentials demonstrated more modest variation (p < 0.05). Novel findings included a previously unreported elevation in mean corpuscular hemoglobin concentration among males, suggesting subtle sex-linked regulatory mechanisms in erythropoiesis. These outcomes emphasize inherent biological differences with clinical and diagnostic implications. The results support gender-specific reference ranges to refine diagnostic accuracy and improve personalized hematological assessment. Future research is encouraged to explore underlying hormonal, genetic, or environmental factors driving these distinctions.

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References

Abbass, A. et al. (2024). Reference intervals of hematological parameters among healthy adults according to gender. Journal of Blood Medicine, 15, 515–528. https://doi.org/10.2147/JBM.S488050 (Dove Medical Press)

Ruzhanskaya, A., Ichihara, K., Sukhacheva, E., Skibo, I., Vybornova, N., Butlitski, D., … Emanuel, V. (2024). Derivation of Russian-specific reference intervals for complete blood count, iron markers and related vitamins. PLoS ONE, 19(9), e0304020. https://doi.org/10.1371/journal.pone.0304020 (PLOS)

Yuan, Z., Zhuang, J., & colleagues. (2024). Establishment and verification of reference intervals for blood cell analysis in extremely high altitude. Frontiers in Physiology. Advance online publication. (Frontiers)

Debre-Berhan cohort study (Ethiopia). (2025). Hematological reference intervals for adult population of Debre Berhan, Ethiopia. Scientific Reports. (Nature)

Hemoglobin thresholds to define anaemia from age 6 months to 65 years: Estimates from international data sources. (2024). The Lancet Haematology. (The Lancet)

Refined CBC reference intervals published by LWW. (2022). Reference intervals of complete blood count parameters. Medicine (Baltimore). (Lippincott Journals)

Italian outpatient study on hemoglobin and age. (2025). Modifications in hemoglobin levels associated with age in an outpatient population. Scientific Reports, 15, 8960. (Nature)

“Beyond Complete Blood Count Reference Ranges.” (2025). The Hematologist. (ASH Publications)

Investigation of reference intervals in general healthy population. (2023). Significant sex differences detected in Hct, PLT, MCV, MCH and MCHC. Haematological Reference International. (Taylor & Francis Online)

Afghan population reference interval study. (2023). Establishment of reference intervals of blood parameters among the healthy population. Journal of Biomedical. (Dove Medical Press)

Capillary CBC RIs in Fuzhou, China (urban preschoolers). (2024). Sex- and age-based reference intervals for capillary complete blood count. Chinese Journal of Laboratory Medicine. (ScienceDirect)

Kagawa, R., & Shiro, M. (2022). Effect of exclusion criteria on the distribution of blood test values. arXiv. (arXiv)

Wikipedia. (2025, July). Complete blood count. Wikipedia. (Wikipedia)

Wikipedia. (2025, May). Mean corpuscular hemoglobin concentration. Wikipedia. (Wikipedia)

Wikipedia. (2025, July). Reference ranges for blood tests. Wikipedia. (Wikipedia)

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Published

2025-09-06

How to Cite

Mustafa, M. ., Butt, L. S. ., Zahid, K. ., Imran, M. ., Tahir, H. ., Batool, I. ., & Tahir, F. N. . (2025). GENDER DIFFERENCES IN COMPLETE BLOOD COUNT PARAMETERS: A COMPARATIVE HEMATOLOGICAL STUDY. History of Medicine, 11(2), 16-20. https://doi.org/10.48047/HM.V11.I2.2025.16-20