[Mass screening for early lung cancer by the Miyagi method].
Mass screening for early detection of lung cancer has been in practice from 1982. Up to 1985, 583,549 persons-years have been screened. Screening was done by examining miniature X-rays taken of the chest for all those tested, and by sputum cytology for those thought to be high-risk, 34,044 persons-years. Heavy smokers over 50 years of age comprised much of the high-risk cases and persons evidencing hemoptysis. In a total of 207 detected cases of lung cancer, 120 cases were found by chest X-ray only, 69 cases were uncovered by sputum cytology only, and 18 cases were discovered by both X-ray and cytology. In one hundred and forty-four cases the cancers were resected and in 69 cases the cancers were determined to be in an early stage.
Saito
Y
Y
Dept. of Surgery, Tohoku Univ.
Takahashi
S
S
Susukida
K
K
Kanma
K
K
Sagawa
M
M
Sato
M
M
Ota
S
S
Nagamoto
N
N
Imai
T
T
Suda
H
H
D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000517:prevention & control*; D008297:Male; D008400:Mass Chest X-Ray; D008403:Mass Screening / Q000379:methods*; D013183:Sputum / Q000166:cytology; D013997:Time Factors