title: How to integrate steroid hormone receptor, flow cytometric, and other prognostic information in regard to primary breast cancer.
abstract: A large group of patients with node-positive breast cancer was divided into a training set (n = 851) and a validation set (n = 432) to demonstrate techniques for integrating steroid hormone receptor status, DNA flow cytometric findings, and other prognostic factors to predict patient survival. Multivariate analyses showed that estrogen receptor status, the number of involved axillary lymph nodes, patient age, S-phase fraction, progesterone receptor status, and tumor size were significant predictors of survival in patients with node-positive breast cancer. Techniques for optimizing and validating a cut point for a new prognostic factor and for examining alternative representations of prognostic factors were demonstrated. Prognostic indexes were created that could be used to identify patients with very good or very poor prognoses.
authors.affiliation: Department of Medicine/Medical Oncology, University of Texas Health Science Center, San Antonio 78284-7884.
authors.forename: G M
authors.initials: GM
authors.lastname: Clark
authors.forename: C R
authors.initials: CR
authors.lastname: Wenger
authors.forename: S
authors.initials: S
authors.lastname: Beardslee
authors.forename: M A
authors.initials: MA
authors.lastname: Owens
authors.forename: G
authors.initials: G
authors.lastname: Pounds
authors.forename: T
authors.initials: T
authors.lastname: Oldaker
authors.forename: P
authors.initials: P
authors.lastname: Vendely
authors.forename: M R
authors.initials: MR
authors.lastname: Pandian
authors.forename: D
authors.initials: D
authors.lastname: Harrington
authors.forename: W L
authors.initials: WL
authors.lastname: McGuire
mesh_terms: D000782:Aneuploidy; D001943:Breast Neoplasms / Q000737:chemistry / Q000235:genetics / Q000473:pathology*; D004273:DNA, Neoplasm / Q000032:analysis; D004171:Diploidy; D005260:Female; D005434:Flow Cytometry; D005500:Follow-Up Studies; D016193:G1 Phase; D016195:G2 Phase; D006801:Humans; D008875:Middle Aged; D015999:Multivariate Analysis; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D011123:Polyploidy; D011379:Prognosis; D016016:Proportional Hazards Models; D011960:Receptors, Estrogen / Q000032:analysis*; D011980:Receptors, Progesterone / Q000032:analysis*; D016192:Resting Phase, Cell Cycle; D016019:Survival Analysis
chemical_list: D004273:DNA, Neoplasm; D011960:Receptors, Estrogen; D011980:Receptors, Progesterone