Lung cancer survival and comorbidities in lung cancer screening participants of the Gdańsk screening cohort.

Background: In 2010, the World Health Organisation recommended implementation of screening programmes in four groups of diseases-neoplasms, cardiovascular diseases (CVD), diabetes mellitus (DM) and chronic obstructive pulmonary disease (COPD). It is due to the fact that they share the same, modifiable risk factors. Methods: Between 2009 and 2011, 8637 heavy smokers (aged 50-75, smoking history >20 pack-years) were screened in the Pomeranian Pilot Lung Cancer Screening Programme (PPP) in Gdask, Poland. We looked at 5-year follow-up and analysed the medical events and comorbidities of all participants. One health care provider in the Polish health care system provides a unique opportunity to gather most reliable data on all medical events in each person. Results: In 52.0% of lung cancer screening participants CVD (33.5%), DM (26.0%) and COPD (21.0%) were diagnosed. Prevalence of these diseases is higher in lung cancer patients than in the non-cancer screening group (P < 0.0001). One hundred and seven (1.2%) lung cancers were diagnosed during PPP programme performance and another 382 cases (4.4%) in the 5-year follow-up, so the potential mean annual lung cancer detection rate is 0.77%. Conclusions: Lung cancer screening programme offers a great potential for joint screening of lung cancer, CVD, diabetes and COPD.