Determination of Reference Intervals for Platelet Parameters using Sysmex XN-1000 among South Indian Population

Author:

Gnanadeepam Santiago,Selvajothi Packiaraj,Sumathy MuthuPonnuswamy,Kuzhali Subramanian,Sujatha Anandan

Abstract

Introduction: Reference intervals are important for interpretation of clinical laboratory tests. The platelet parameters are recently reported newer haematological parameters and serve as clinically valuable biomarkers. It provides further information on platelet morphology and proliferation kinetics. The lack of information from manufacturers about the geographical reference ranges for the Complete Blood Count (CBC) parameters highlights the need for laboratories to establish reference intervals. Aim: To determine the reference interval for platelet parameters using Sysmex XN-1000 haematology analyser in South Indian population. Materials and Methods: The present retrospective recordbased study was carried out during July 2021 to September 2021 and the data was retrieved from a continuous 12-month period (November 2018-October 2019) in the haematology laboratory at a tertiary care dental hospital, Chennai, Tamil Nadu, India. The data of CBC parameters were retrieved from the Sysmex XN-1000 analyser and a total of 1,883 reports labelled as negative/ unflagged were included in the study. The reference intervals for platelet parameters which include Mean Platelet Volume (MPV), Platelet Distribution Width (PDW), Platelet Large Cell Ratio (P-LCR) and Plateletcrit (PCT) for male and female subjects were compared using the Mann-Whitney U-test. Kruskal-Wallis test was used to compare between the different age groups using Statistical Package for the Social Sciences (SPSS) version 24.0 software. Results: The data for the platelet parameters are shown as median, with statistically significant difference in the reference interval for all the parameters (p<0.001). There was no significant difference in age divided reference intervals, except for PCT (p=0.04) PDW was found to be 9-16.4 fL for males and 9.1-16.6 fL for females (p<0.001). Similarly, MPV was 9-12.3 fL for males and 9-12.6 fL for females (p<0.001); P-LCR was 16-42.1% for males and 16.6-43% for females (p<0.001); and PCT was 0.15- 0.36% for males and 0.14-0.41% for females (p<0.001). Conclusion: The study has determined the reference interval for platelet parameters with respect to age and gender in area specific population and these results can be utilised for other laboratories using the same analyser system for south Indian population.

Publisher

JCDR Research and Publications

Subject

Clinical Biochemistry,General Medicine

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