title: Lower protection of cytological screening for adenocarcinomas and shorter protection for younger women: the results of a case-control study in Florence.
abstract: The efficacy of cytological screening in preventing adenocarcinoma of cervix uteri as compared to squamous cell cancer has been evaluated by means of a case-control study in the province of Florence. The odds ratios of women who had a Pap test within the 3 years before the index date was 0.65 (95% confidence interval (CI) 0.26-1.64) and 0.15 (95% CI 0.07-0.31), for adenocarcinoma and squamous cancer, respectively. The duration of the protective effect was shorter in women below the age of 40 years than in older women.
authors.affiliation: Clinical and Descriptive Epidemiological Unit, CSPO (Centro per lo Studio e la Prevenzione Oncologica), Via di San Salvi 12, Florence 50135, Italy. m.zappa@cspo.it
authors.forename: M
authors.initials: M
authors.lastname: Zappa
authors.forename: C B
authors.initials: CB
authors.lastname: Visioli
authors.forename: S
authors.initials: S
authors.lastname: Ciatto
authors.forename: A
authors.initials: A
authors.lastname: Iossa
authors.forename: E
authors.initials: E
authors.lastname: Paci
authors.forename: P
authors.initials: P
authors.lastname: Sasieni
mesh_terms: D000230:Adenocarcinoma / Q000517:prevention & control*; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000517:prevention & control*; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D008403:Mass Screening; D008875:Middle Aged; D002583:Uterine Cervical Neoplasms / Q000517:prevention & control*; D014626:Vaginal Smears