Differences in Perceived Risk at Which Clinician and Patient Stakeholders Initiate Activities to Prevent Late Effects Among Breast Cancer Survivors.

The questionnaire was not psychometrically validated; items were cognitively pretested and pilot tested but not rigorously vetted. Analyses were exploratory and did not adjust for multiple comparisons. The target sample size was arbitrary and not based on a priori estimates. No effort was made to balance sex, age, or years of experience across subgroups. Participants were recruited by convenience and purposive sampling, including staff meetings and email. Most clinicians were recruited from a quaternary comprehensive cancer center, so results may not apply to other settings. Findings apply only to breast cancer, not other cancers.

Do not read these ratings as evidence that earlier activities prevent late effects. The study measured the perceived risk at which groups said they would start activities, not patient outcomes or validated clinical thresholds.