Trends in primary care blood tests prior to lung and colorectal cancer diagnosis-A retrospective cohort study using linked Australian data.
blood tests
colorectal cancer
early diagnosis
general practice
lung cancer
Journal
Cancer medicine
ISSN: 2045-7634
Titre abrégé: Cancer Med
Pays: United States
ID NLM: 101595310
Informations de publication
Date de publication:
Jul 2024
Jul 2024
Historique:
revised:
20
06
2024
received:
06
12
2023
accepted:
30
06
2024
medline:
13
7
2024
pubmed:
13
7
2024
entrez:
13
7
2024
Statut:
ppublish
Résumé
Abnormal results in common blood tests may occur several months before lung cancer (LC) and colorectal cancer (CRC) diagnosis. Identifying early blood markers of cancer and distinct blood test signatures could support earlier diagnosis in general practice. Using linked Australian primary care and hospital cancer registry data, we conducted a cohort study of 855 LC and 399 CRC patients diagnosed between 2001 and 2021. Requests and results from general practice blood tests (six acute phase reactants [APR] and six red blood cell indices [RBCI]) were examined in the 2 years before cancer diagnosis. Poisson regression models were used to estimate monthly incidence rates and examine pre-diagnostic trends in blood test use and abnormal results prior to cancer diagnosis, comparing patterns in LC and CRC patients. General practice blood test requests increase from 7 months before CRC and 6 months before LC diagnosis. Abnormalities in many APR and RBCI tests increase several months before cancer diagnosis, often occur prior to or in the absence of anaemia (in 51% of CRC and 81% of LC patients with abnormalities), and are different in LC and CRC patients. This study demonstrates an increase in diagnostic activity in Australian general practice several months before LC and CRC diagnosis, indicating potential opportunities for earlier diagnosis. It identifies blood test abnormalities and distinct signatures that are early markers of LC and CRC. If combined with other pre-diagnostic information, these blood tests have potential to support GPs in prioritising patients for cancer investigation of different sites to expedite diagnosis.
Substances chimiques
Biomarkers, Tumor
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e70006Subventions
Organisme : Cancer Research UK
ID : C18081/A18180
Pays : United Kingdom
Organisme : Cancer Research UK
ID : C18081/A31373
Pays : United Kingdom
Organisme : National Health and Medical Research Council
ID : APP1195302
Organisme : Victorian Comprehensive Cancer Centre (VCCC)
ID : Strategic Research Funding 2021/2024
Informations de copyright
© 2024 The Author(s). Cancer Medicine published by John Wiley & Sons Ltd.
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