Researchers have revealed that there are two symptoms which could act as potential predictors of lung cancer.
The study, published in the British Journal of General Practice, found that shortness of breath and cough were becoming more common as the first symptoms in diagnosis.
Lung cancer is the leading cause of cancer deaths in the UK and has a poor five-year survival rate of around 13 per cent.
Research led by the University of Exeter aimed to improve potentially life-saving early diagnosis through analysing which symptoms patients present first to their doctor.
"Our paper shows a rapid change in the first symptom doctors are seeing. That's probably not caused by any change in basic biology, it's more likely to be down to earlier detection," said study researcher Willie Hamilton, a Professor at the University of Exeter.
For the findings, the research team examined 27,795 records of adults who were diagnosed with lung cancer between 2000 and 2017, at more than 600 UK GP (general practitioner) practices.
Over the 17 year period, the team found an increase in both cough and shortness of breath as the first symptom patients reported when they went on to be diagnosed with lung cancer.
Symptom of lung cancer
The study, funded by Cancer Research UK and supported by NIHR, found a decrease in patients who reported the first symptom to be coughing up blood, or loss of appetite, generally regarded as the headline symptom of lung cancer.
"It means teaching must change — clinicians must be alert to the risks of cough and shortness of breath," Hamilton said.
According to the researchers, this important study indicates that people are now going to the doctor about different symptoms of lung cancer, such as cough and shortness of breath, possibly because of awareness campaigns in the past.
"Most people with these symptoms will not have lung cancer, but it's well worth letting your GP decide if you need tests - because if it is cancer, a prompt diagnosis and speedy treatment make all the difference," said study researcher Sara Hiom, director of early diagnosis at Cancer Research UK.
