Lung cancer burden has increased during the last 40 years in Hebei Province, China.

Thorac Cancer · 2016 · PMC4846621 · PMID 27148418

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an increasing trendno p-value reported

There was an increasing trend in all age groups with an increase in age, and a significantly increasing trend in people aged above 65 years in 2010–2011, compared with 1973–1975 (Table 4 , Fig 4 ).

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