:   45 踦 ϴ ()
ü ȸϴ , 踦 Ϸ ָϴ ͻ̴. ׷ 忡 ο 衯. Ƶ, ߵ ٽ 찡 ټ.

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ѹα 1 ϡ ϴ ڴ. , , 汤, , δ. Ư ϡ ̴ ֹ . ̱ȸ(American Lung Association) 뺯 ̺ (David Tom Cooke) ڻ翡 1 ٷ ϡ̴.׷ ֱ ݿ Ҽ ִٴ Դ. Ư 45 踦 Ǵ ٸ ũ ߴ Ÿ.̱ȸ DZ 1997⿡ 2014 ǰ翡 ̱ 41 ̻ ڷḦ ߴ. Ⱓ 1 ڰ , ڰ ں Ÿ. , κ .Ҿ, ٴ Ȯߴ. 18 ڿ ּ 3 ̻, 10 쿡 4 Ҵ. ٸ, 35 ݿ ϸ, ߻ ִ . 35 Ŀ ݿ ϴ, ߻ ǹϰ ִ. 45 ݿ ϸ 87%, 45~54 ̿ 78%, 55~64 ̿ 56% Ѵ. ݿϴ ߿ϴ١ Ѵ. ̾ 35 ݿ ϸ ִ ִ١ Ϸ ݿ ߴ. ݿ ϱ⸸ ص پ ִ. , ݿ 12ð Ŀ ϻȭźҷ ϱ ϸ, 24ð Ŀ ȯ ߺ ִ ˷ ִ.̹ 10 21 ̱ȸ (JAMA Oncology) Ǿ.

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