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Increased use of chest x-rays linked to earlier lung cancer diagnosis and improved survival

2025-03-25
(Press-News.org) ●      Records of more than 170,000 lung cancer patients combined with chest x-ray rates from 7,400 GP practices were analysed in the new research led by the University of Sheffield

●      The study, published in the British Journal of General Practice, shows link between the frequency of chest x-rays and earlier diagnosis and improved survival

●      Lung cancer is the leading cause of cancer deaths globally

 

A groundbreaking study has revealed a significant link between the frequency of chest x-ray referrals from GPs and earlier diagnosis and improved survival rates for lung cancer patients.     

Research from the University of Sheffield analysed records from more than 170,000 lung cancer patients in England between 2014 and 2018, combined with chest x-ray rates from 7,400 GP practices.

The study, published in the British Journal of General Practice, found that patients attending practices with the highest chest x-ray usage were more likely to be diagnosed with lung cancer at an earlier, more treatable stage. The practices with the highest chest x-ray usage also saw patients less likely to be diagnosed at the later stages of cancer - stage three and four.

These patients were also shown to have better survival at both one and five years after diagnosis, compared with those with the lowest chest x-ray usage.

Lead author of the study, Dr Stephen Bradley from the University of Sheffield’s School of Medicine and Population Health, said: “Lung cancer remains the leading cause of cancer deaths both in the UK and globally. This is an important step forward in our understanding of how to improve lung cancer detection.

“Our research strongly suggests that increasing the use of chest x-rays for patients with relevant symptoms can lead to earlier diagnosis and, crucially, better chances of survival.”

Dr Bradley, who conducted the study whilst at the University of Leeds, added: “While advanced technologies like CT scanners play a vital role, this study highlights the potential for optimising the use of a simpler, cheaper tool like x-rays which are more easier for patients to access.

"By encouraging greater use of chest x-rays, we can potentially diagnose lung cancer earlier, when treatment is more likely to be successful."

Until now, it was not widely understood if GPs arranging more chest x-rays was beneficial. The uptake of chest x-rays varies a great deal between different GP practices - possibly in part because GPs may not have been convinced that there could be a benefit for patients with very common symptoms.

Co-author of the study, Willie Hamilton CBE, Professor of Primary Care Diagnostics at the University of Exeter, said: “This study matters. There’s few cancer tests available in general practice which are fairly accurate, fairly cheap and very acceptable to patients. Now we know that doing more chest X-rays finds more cancers, and identifies them earlier in their growth, which is crucial to the best outcomes for patients.”

This is the first study of its kind which links chest x-ray rates and the national cancer registry. The study was funded by Cancer Research UK.

Lyndsy Ambler, Senior Strategic Evidence Manager at Cancer Research UK, said: “This study highlights how the use of investigations in primary care can help diagnose cancer at an earlier stage to give people affected by cancer the best chance of a good outcome.
 

“Encouraging the use of chest x-ray for people with potential signs and symptoms of lung cancer by GPs and improving GP access to investigations is key.

“More research to understand the impact of other investigations used in primary care on patient outcomes is also needed to support efforts to diagnose cancer earlier.”

To view the full study after the embargo lifts, please visit:
https://doi.org/10.3399/BJGP.2024.0466

 For more information please contact: Amy Huxtable, Senior Media Relations Officer, University of Sheffield, 07568116781, a.l.huxtable@sheffield.ac.uk

 

 

 

 

END


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[Press-News.org] Increased use of chest x-rays linked to earlier lung cancer diagnosis and improved survival