New for DESI study (if offered choice of either pet   or surgery/AET, or chemotherapy/no chemotherapy) Baseline (after consent for PET or surgery) (AET or after consultation for chemo/no chemo, as applicable) 6 weeks after relevant treatment choice6 months after relevant treatment choice
Spielberger anxiety**
Decision regret**
Knowledge readiness to decide and preference measures*
Brief IPQ**
Brief COPE**
Process evaluation (if taking part in process evaluation)
Process evaluation questionnaire*
  • *indicated that these data are collected at this time point.

  • ADL, activities of daily living; AET, antioestrogen therapy; COPE, Coping Orientation to Problems Experienced; DESI, decision support intervention; ECOG, Eastern Cooperative Oncology Group; IADL, instrumental activities of daily living; IPQ, Illness Perception Questionnaire; MMSE, Mini-Mental State Examination; PET, primary endocrine therapy; QoL, quality of life; RECIST, Response Evaluation Criteria In Solid Tumors.