Evidence map›Paper›PMID 31079661›Full record

ArticleHematology, transfusion and cell therapy

Sex-divided reference intervals for mean platelet volume, platelet large cell ratio and plateletcrit using the Sysmex XN-10 automated haematology analyzer in a UK population.

Usman Ali, Roz Gibbs, Gavin Knight, Dimitris Tsitsikas

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Article in Hematology, transfusion and cell therapy. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 30% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

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  6. Does gender influence reference values of platelet indices?Hematology, transfusion and cell therapy
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Usman AliHomerton University Hospital NHS Foundation Trust, Homerton Row, London, UK. Electronic address: usmanali1@nhs.net.
Roz GibbsUniversity of Portsmouth, Portsmouth, UK.
Gavin KnightUniversity of Portsmouth, Portsmouth, UK.
Dimitris TsitsikasHomerton University Hospital NHS Foundation Trust, Homerton Row, London, UK.
Homerton University Hospital NHS Foundation Trust · GBUniversity of Portsmouth · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study aimed to define the sex-divided reference intervals for platelet indices (mean platelet volume (MPV), platelet distribution width (PDW), platelet large cell ratio (P-LCR) and plateletcrit (PCT)) on the Sysmex XN-10.

methodsA total of 2376 samples were assayed for full blood count on the Sysmex XN-10 haematology analyzer. After removing the outliers, reference intervals were calculated using the mean±2SD. The P value 0.05 was adopted to denote statistical significance.

resultsThere was a statistical significance (α=0.05) between sex-divided reference intervals for MPV (p=0.007), P-LCR (p=0.015) and PCT (p<0.001), thus separate reference intervals were calculated for these indices, with orientation to the sex-divisions as follows: MPV, 9.1-13.0fL [males] and 9.2-12.8fL [females]; P-LCR, 17.6-47.0% [males] and 17.8-47.8% [females]; and PCT, 0.16-0.35% [males] and 0.18-0.37% [females]. No significance was found between sex-divided reference intervals for the PDW (p=0.838), therefore a reference interval for total individuals was calculated for this platelet measurement as 9.3-17.3fL.

conclusionThis study showed comparable reference intervals, using the Sysmex XN-10, with the previous literature. It determined the need to define sex-specific reference intervals for the MPV, P-LCR and PCT, but not for the PDW. These reference intervals will allow for low and high values to be facilitated in order to do further research and guide platelet disorder management.

Indexed as

Blood cell countBlood plateletHematologic testsMean platelet volumeReference values

Identifiers

PMID31079661
PMCPMC6517618
OpenAlexW2907151492

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.