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Ann Intern Med ; 131(1): 1-6, 1999 Jul 06.
Artículo en Inglés | MEDLINE | ID: mdl-10391809

RESUMEN

BACKGROUND: Despite the mortality benefits of breast cancer screening, not all women receive regular mammography. Such factors as age, socioeconomic status, and physician recommendation have been associated with greater use of screening. However, we do not know whether having an abnormal mammogram affects future screening. OBJECTIVE: To examine the effect of a false-positive mammogram on adherence to the next recommended screening mammogram. DESIGN: Prospective cohort study. SETTING: The breast cancer screening program at Group Health Cooperative, a health maintenance organization in Washington state. PATIENTS: 5059 women 40 years of age or older with no history of breast cancer or breast surgery who had false-positive (n = 813) or true-negative (n = 4246) index screening mammograms between 1 August 1990 and 31 July 1992. MEASUREMENTS: Screening rates and odds ratios for recommended interval screening up to 42 months after the index mammogram. RESULTS: After adjustment for differences in age; previous use of mammography; family history of breast cancer; exogenous hormone use; and age at menarche, first childbirth, and menopause, women with false-positive index mammograms were more likely than those with true-negative index mammograms to obtain their next recommended screening mammogram (odds ratio, 1.21 [95% CI, 1.01 to 1.45]). The relation between a false-positive mammogram and the likelihood of adherence to screening in the next recommended interval was strongest among women who had not previously undergone mammography (odds ratio, 1.66 [CI, 1.26 to 2.17]). CONCLUSIONS: Having a false-positive mammogram did not adversely affect screening behavior in the next recommended interval. Women with false-positive mammograms, especially those without previous mammography, were more likely to return for the next scheduled screening.


Asunto(s)
Neoplasias de la Mama/prevención & control , Sistemas Prepagos de Salud/estadística & datos numéricos , Mamografía/estadística & datos numéricos , Tamizaje Masivo/estadística & datos numéricos , Adulto , Anciano , Neoplasias de la Mama/diagnóstico por imagen , Estudios de Cohortes , Factores de Confusión Epidemiológicos , Reacciones Falso Positivas , Femenino , Humanos , Tamizaje Masivo/organización & administración , Persona de Mediana Edad , Oportunidad Relativa , Estudios Prospectivos , Factores de Tiempo
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