Paediatric reference intervals are heterogeneous and differ considerably in the classification of healthy paediatric blood samples

Anne Bryde Alnor*, Pernille Just Vinholt

*Kontaktforfatter for dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

The aim was to elude differences in published paediatric reference intervals (RIs) and the implementations hereof in terms of classification of samples. Predicaments associated with transferring RIs published elsewhere are addressed. A local paediatric (aged 0 days to < 18 years) population of platelet count, haemoglobin level and white blood cell count, based on first draw samples from general practitioners was established. PubMed was used to identify studies with transferable RIs. The classification of local samples by the individual RIs was evaluated. Transference was done in accordance with the Clinical and Laboratory Standards Institute EP28-A3C guideline. Validation of transference was done using a quality demand based on biological variance. Twelve studies with a combined 28 RIs were transferred onto the local population, which was derived from 20,597 children. Studies varied considerably in methodology and results. In terms of classification, up to 63% of the samples would change classification from normal to diseased, depending on which RI was applied. When validating the transferred RIs, one RI was implementable in the local population. Conclusion: Published paediatric RIs are heterogeneous, making assessment of transferability problematic and resulting in marked differences in classification of paediatric samples, thereby potentially affecting diagnosis and treatment of children.What is Known:• Reference intervals (RIs) are fundamental for the interpretation of paediatric samples and thus correct diagnosis and treatment of the individual child.• Guidelines for the establishment of adult RIs exist, but there are no specific recommendations for establishing paediatric RIs, which is problematic, and laboratories often implement RIs published elsewhere as a consequence.What is New:• Paediatric RIs published in peer-reviewed scientific journals differ considerably in methodology applied for the establishment of the RI.• The RIs show marked divergence in the classification of local samples from healthy children.

OriginalsprogEngelsk
TidsskriftEuropean Journal of Pediatrics
Vol/bind178
Udgave nummer7
Sider (fra-til)963-971
ISSN0340-6199
DOI
StatusUdgivet - jul. 2019

Fingeraftryk

Pediatrics
Guidelines
Population
Platelet Count
PubMed
General Practitioners

Citer dette

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title = "Paediatric reference intervals are heterogeneous and differ considerably in the classification of healthy paediatric blood samples",
abstract = "The aim was to elude differences in published paediatric reference intervals (RIs) and the implementations hereof in terms of classification of samples. Predicaments associated with transferring RIs published elsewhere are addressed. A local paediatric (aged 0 days to < 18 years) population of platelet count, haemoglobin level and white blood cell count, based on first draw samples from general practitioners was established. PubMed was used to identify studies with transferable RIs. The classification of local samples by the individual RIs was evaluated. Transference was done in accordance with the Clinical and Laboratory Standards Institute EP28-A3C guideline. Validation of transference was done using a quality demand based on biological variance. Twelve studies with a combined 28 RIs were transferred onto the local population, which was derived from 20,597 children. Studies varied considerably in methodology and results. In terms of classification, up to 63{\%} of the samples would change classification from normal to diseased, depending on which RI was applied. When validating the transferred RIs, one RI was implementable in the local population. Conclusion: Published paediatric RIs are heterogeneous, making assessment of transferability problematic and resulting in marked differences in classification of paediatric samples, thereby potentially affecting diagnosis and treatment of children.What is Known:• Reference intervals (RIs) are fundamental for the interpretation of paediatric samples and thus correct diagnosis and treatment of the individual child.• Guidelines for the establishment of adult RIs exist, but there are no specific recommendations for establishing paediatric RIs, which is problematic, and laboratories often implement RIs published elsewhere as a consequence.What is New:• Paediatric RIs published in peer-reviewed scientific journals differ considerably in methodology applied for the establishment of the RI.• The RIs show marked divergence in the classification of local samples from healthy children.",
keywords = "Classification, Paediatric, Reference interval, Transference",
author = "Alnor, {Anne Bryde} and Vinholt, {Pernille Just}",
year = "2019",
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language = "English",
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pages = "963--971",
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issn = "0340-6199",
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TY - JOUR

T1 - Paediatric reference intervals are heterogeneous and differ considerably in the classification of healthy paediatric blood samples

AU - Alnor, Anne Bryde

AU - Vinholt, Pernille Just

PY - 2019/7

Y1 - 2019/7

N2 - The aim was to elude differences in published paediatric reference intervals (RIs) and the implementations hereof in terms of classification of samples. Predicaments associated with transferring RIs published elsewhere are addressed. A local paediatric (aged 0 days to < 18 years) population of platelet count, haemoglobin level and white blood cell count, based on first draw samples from general practitioners was established. PubMed was used to identify studies with transferable RIs. The classification of local samples by the individual RIs was evaluated. Transference was done in accordance with the Clinical and Laboratory Standards Institute EP28-A3C guideline. Validation of transference was done using a quality demand based on biological variance. Twelve studies with a combined 28 RIs were transferred onto the local population, which was derived from 20,597 children. Studies varied considerably in methodology and results. In terms of classification, up to 63% of the samples would change classification from normal to diseased, depending on which RI was applied. When validating the transferred RIs, one RI was implementable in the local population. Conclusion: Published paediatric RIs are heterogeneous, making assessment of transferability problematic and resulting in marked differences in classification of paediatric samples, thereby potentially affecting diagnosis and treatment of children.What is Known:• Reference intervals (RIs) are fundamental for the interpretation of paediatric samples and thus correct diagnosis and treatment of the individual child.• Guidelines for the establishment of adult RIs exist, but there are no specific recommendations for establishing paediatric RIs, which is problematic, and laboratories often implement RIs published elsewhere as a consequence.What is New:• Paediatric RIs published in peer-reviewed scientific journals differ considerably in methodology applied for the establishment of the RI.• The RIs show marked divergence in the classification of local samples from healthy children.

AB - The aim was to elude differences in published paediatric reference intervals (RIs) and the implementations hereof in terms of classification of samples. Predicaments associated with transferring RIs published elsewhere are addressed. A local paediatric (aged 0 days to < 18 years) population of platelet count, haemoglobin level and white blood cell count, based on first draw samples from general practitioners was established. PubMed was used to identify studies with transferable RIs. The classification of local samples by the individual RIs was evaluated. Transference was done in accordance with the Clinical and Laboratory Standards Institute EP28-A3C guideline. Validation of transference was done using a quality demand based on biological variance. Twelve studies with a combined 28 RIs were transferred onto the local population, which was derived from 20,597 children. Studies varied considerably in methodology and results. In terms of classification, up to 63% of the samples would change classification from normal to diseased, depending on which RI was applied. When validating the transferred RIs, one RI was implementable in the local population. Conclusion: Published paediatric RIs are heterogeneous, making assessment of transferability problematic and resulting in marked differences in classification of paediatric samples, thereby potentially affecting diagnosis and treatment of children.What is Known:• Reference intervals (RIs) are fundamental for the interpretation of paediatric samples and thus correct diagnosis and treatment of the individual child.• Guidelines for the establishment of adult RIs exist, but there are no specific recommendations for establishing paediatric RIs, which is problematic, and laboratories often implement RIs published elsewhere as a consequence.What is New:• Paediatric RIs published in peer-reviewed scientific journals differ considerably in methodology applied for the establishment of the RI.• The RIs show marked divergence in the classification of local samples from healthy children.

KW - Classification

KW - Paediatric

KW - Reference interval

KW - Transference

U2 - 10.1007/s00431-019-03377-w

DO - 10.1007/s00431-019-03377-w

M3 - Journal article

VL - 178

SP - 963

EP - 971

JO - European Journal of Pediatrics

JF - European Journal of Pediatrics

SN - 0340-6199

IS - 7

ER -