title: Sputum occult blood screening for lung cancer. Stage II screening of 14,431 subjects.
abstract: Sputum occult blood screening (SOBS) for lung cancer was performed in outpatients with suspected lung cancer. A total of 1011 patients were seen. Among them, 604 patients were found to be negative for SOBS, and 407 were found to be positive. The false-negative rate was 3.97% (24 of 604), and the opposite positive rate was 19.65% (80 of 407). A total of 14,431 normal subjects over 40 years of age were screened by SOBS. In the series, 1942 specimens were found to be positive. Among the 1942 patients, 31 were found to have definite cancer cells.
authors.affiliation: Department of Cancer Prevention, Chinese Academy of Medical Sciences, Beijing.
authors.forename: D X
authors.initials: DX
authors.lastname: Qin
authors.forename: J Y
authors.initials: JY
authors.lastname: Li
authors.forename: L Q
authors.initials: LQ
authors.lastname: Sun
authors.forename: M
authors.initials: M
authors.lastname: Gu
authors.forename: G S
authors.initials: GS
authors.lastname: Wang
authors.forename: J W
authors.initials: JW
authors.lastname: Cong
authors.forename: J Z
authors.initials: JZ
authors.lastname: Wang
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis*; D008297:Male; D008403:Mass Screening / Q000379:methods*; D008875:Middle Aged; D009780:Occult Blood; D010865:Pilot Projects; D011237:Predictive Value of Tests; D013183:Sputum