title: Double blind randomized trial on occult blood bead (OBB) and gastroscopy-pathology screening for gastro-oesophageal cancer.
abstract: The study consists of two parts. In the first, 4,970 subjects were given the occult blood bead (OBB) test and 817 underwent gastroscopy: 40 of those screened were found to have cancer, 30 of which had early lesions (15 had carcinoma in situ). In the second part, a double blind randomized control study of the mass screening was conducted. All the tests were free of charge. Subjects over 30 years of age were persuaded to participate. Two-hundred and eight people accepted the OBB test, gastroscopy and histopathological assessment. A total of four cancers (two early, one moderate and one advanced) were detected by OBB test. If the OBB is carried out properly, gastro-oesophageal cancer is unlikely to be missed. We believe that OBB gastroscopy screening for oesophageal and gastric cancer is reliable and practical.
authors.affiliation: Department of Cancer Prevention and Detection, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Beijing, China.
authors.forename: D X
authors.initials: DX
authors.lastname: Qin
authors.forename: G Q
authors.initials: GQ
authors.lastname: Wang
authors.forename: Z Y
authors.initials: ZY
authors.lastname: Wang
mesh_terms: D000230:Adenocarcinoma / Q000453:epidemiology / Q000473:pathology / Q000517:prevention & control*; D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology / Q000473:pathology / Q000517:prevention & control*; D002681:China / Q000453:epidemiology; D004311:Double-Blind Method; D004938:Esophageal Neoplasms / Q000453:epidemiology / Q000473:pathology / Q000517:prevention & control*; D005260:Female; D005773:Gastroscopy; D006801:Humans; D015994:Incidence; D008297:Male; D008403:Mass Screening / Q000379:methods*; D008875:Middle Aged; D009780:Occult Blood; D012680:Sensitivity and Specificity; D013274:Stomach Neoplasms / Q000453:epidemiology / Q000473:pathology / Q000517:prevention & control*