The country with the highest lung cancer rate is Hungary.

High smoking rates, particularly among men, and significantair pollutionare top risk factors for lung cancer in Hungary.

The United States is number 13 on the list.

Man sitting outside cafe smoking a cigarette

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Secondhand tobacco smoke is also a major risk factor.

It is the second most common cancer in the U.S. behindskin cancer.

There are a few key reasons for higher lung cancer rates in the United States.

This is likely has to do with more people quitting smoking (or not starting) than ever before.

Other countries with high incidence rates include Serbia, Greece, Montenegro, and Belgium.

In each of them, more males than females are diagnosed with the cancer.

The United States has the 13th highest lung cancer incidence worldwide.

World Cancer Research Fund International.Lung cancer statistics.

National Cancer Institute.Lung cancer prevention (PDQ)patient version.

American Cancer Society.Lung cancer statistics.

Centers for Disease Control and Prevention.Lung cancer risk factors.

Centers for Disease Control and Prevention.Adult obesity prevalence maps.

American Lung Association.The connection between lung cancer and outdoor air pollution.

World Health Organization.Household air pollution and health.