Of the estimated 1,572,045 new cases among men (63.4% of the total lung cancer burden in both sexes), 7,17,211 (45.6% of the male lung cancer burden) were adenocarcinoma; 4,61,171 (29.4%) were squamous cell carcinoma (SCC); 1,80,063 (11.5%) were small-cell carcinoma, and 1,01,861 (6.5%) were large-cell carcinoma.
Among women, there were an estimated 9,08,630 new cases of lung cancer worldwide (36.6% of the total lung cancer burden in both sexes), of which 5,41, 971 (59.7% of the female lung cancer burden) were adenocarcinoma; 1,55,598 (17.1%) were SCC, 87,902 (9.7%) were small-cell carcinoma, and 59,271 (6.5%) were large-cell carcinoma.
“This population-based study seeks to better understand variations in lung cancer incidence by place and time according to its constituent subtypes. We examine changes in risk in different countries across successive generations and assess the potential burden of lung adenocarcinoma linked to ambient PM pollution,” said Dr Bray.
“The results provide important insights as to how both the disease and the underlying risk factors are evolving, offering clues as to how we can optimally prevent lung cancer worldwide,” he added.
