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. Author manuscript; available in PMC: 2013 Oct 25.
Published in final edited form as: J Clin Oncol. 2008 Jun 1;26(16):10.1200/JCO.2007.14.8114. doi: 10.1200/JCO.2007.14.8114

Table 3.

Patient-Reported Decision-Related Outcomes

Variable and Measure α Mean Standard
Deviation
Patient’s decision*—Response to question: “Did you decide to enroll in the clinical trial offered to you?” (0 = decided not to enroll; 1 = undecided; 2 = decided to enroll)

Patient’s decision-related affect/cognition
  Confidence in decision—Average reported agreement (4 = strongly agree; 1 = strongly disagree) with statements: “I am comfortable with the treatment decision I have made” and “I have no second thoughts about the decision” 3.42 0.69
  Confidence in oncologist—Average reported agreement (4 = strongly agree; 1 = strongly disagree) with statements: “I have confidence in Dr. ___at this time,” “Dr. ___and I are partners together in treating my disease,” and “I trust Dr. ___’s judgment about my care” .81 3.51 0.54
  Oncologist-patient-family/companion relationship quality—Summed rating (4 = very positive; 1 = very negative) of each dyadic relationship during the visit: “During your discussion with Dr. ___, would you describe the relationship between you and doctor as ___?”; “The relationship between Dr. ___and your family/companion as ___? 0”; and “The relationship between yourself and your family/companion as ___?” .83 3.50 0.50
  Oncologist-patient-family/companion decision agreement—Summed rating (4 = strongly disagree; 1 = strongly agree) of agreement about decision for each dyadic relationship: “Regarding your decision about the clinical trial, how would you rate the level of agreement between yourself and Dr. ___?”; “Between Dr. ___and your family/companion?”; and “Between yourself and your family/companion?” .75 3.57 0.53

Patient’s reasons for decision
  Personal factors—Extent to which each item influenced the decision (1 = no influence on decision; 2 = some influence; 3 = major influence on decision): “Extent to which the trial would increase your quality of life,” “Participation in the trial would extend your life,” and “Participating in the trial would help fight your cancer” .79 2.58 0.47
  Physician communication behaviors—Extent to which each item influenced the decision (1 = no influence on decision; 2 = some influence; 3 = major influence on decision): “Physician listened to you during the discussion” and “Physician was supportive of you” 2.52 0.51
  Family members’ opinions—Extent to which the family member (present or not present during the visit) influenced the decision (1 = no influence on decision; 2 = some influence; 3 = major influence on decision) 2.21 0.62
  Costs manageable—Extent to which the perception that costs of participating in the trial were manageable influenced the decision (1 = no influence on decision; 2 = some influence; 3 = major influence on decision) 2.04 0.85
  Adverse effects manageable—Extent to which perception that adverse effects were manageable influenced the decision (1 = no influence on decision; 2 = some influence; 3 = major influence on decision) 2.07 0.84
*

Twenty-seven patients (77%) decided to enroll in the clinical trial offered to them; four (11.4%) decided not to enroll, and four (11.4%) were undecided at the time of the follow-up interview.