Assisting with Decision-Making: How Standardized Information Impacts Breast Cancer Patient Decisions Regarding Fertility Trade-Offs and Chemotherapy.

Fertility is a concern for young women with breast cancer. We explore patient preferences for chemotherapy and whether women will trade-off survival benefits to maintain fertility following standardized information delivery. During a standardized interview, outcomes associated with adjuvant chemotherapy and 5 years of tamoxifen (CT) or 5 years of tamoxifen alone (NoCT) were described to participants. A threshold task was performed, in which each participant participated in two scenarios: (1) 10% absolute survival benefit from treatment and (2) 25% absolute survival benefit from treatment. The threshold point represented the reduction in fertility post-treatment that a participant would accept before she would trade-off CT benefit. Descriptive statistics were used to characterize participants. Demographic factors (age, marital status, parity at diagnosis, and education) associated with willingness to trade-off survival benefits were evaluated with logistic regression. Analysis comprised 50 women with a median age of 34.5 years (range 25-39 years). Thirty-nine women (78%) completed university education. Thirty-four (68%) and 45 (90%) women in scenarios 1 and 2, respectively, were willing to trade-off all fertility (i.e., reduce fertility to 0% chance of conceiving naturally) to undertake CT and maintain survival benefits. Eight (16%) and three (6%) women in scenarios 1 and 2, respectively, chose to not pursue CT at all to maintain natural fertility. Regression analysis did not identify any variables that were predictive of participants' preferences. Most women with breast cancer are not willing to trade-off survival benefits of adjuvant therapy to maintain fertility.