RUNNING TITLE: DISCLOSURE AND TRUST IN PHYSICIANS

APPENDIX

A1. Study Design

Note: Speaking and Research categories were combined in final analyses as no significant difference in trust ratings was found between payment types (p>0.14).

No exposure to disclosure website (No Disclosure) / No payment ($0) / Low Payment ($250-300) / High Payment ($13000-15000)
Speaking / 40 / 40
Research / 40 / 40
Total (n=278) / 38 / 80 / 80 / 80

A2. Trust Measures

Interpersonal Physician Trust Scale (Hall et al., 2002)

  1. [Your doctor] will do whatever it takes to get you all the care you need. FIDELITY
  2. Sometimes [your doctor] cares more about what is convenient for [him or her] than about your medical needs. FIDELITY
  3. [Your doctor’s] medical skills are not as good as they should be. COMPETENCE
  4. [Your doctor] is extremely thorough and careful. COMPETENCE
  5. You completely trust [your doctor’s] decisions about which medical treatments are best for you. GLOBAL TRUST
  6. [Your doctor] is totally honest in telling you about all of the different treatment options available for your condition. HONESTY
  7. [Your doctor] only thinks about what is best for you. FIDELITY
  8. Sometimes [your doctor] does not pay full attention to what you are trying to tell [him or her]. COMPETENCE
  9. You have no worries about putting your life in [your doctor’s] hands. GLOBAL TRUST
  10. All in all, you have complete trust in [your doctor]. GLOBAL TRUST

Patient Trust in the Medical Profession (Hall et al., 2002)

  1. Doctors in [general] care about their patients’ health just as much or more as their patients do. FIDELITY
  2. Sometimes doctors care more about what is convenient for them than about their patients’ medical needs. FIDELITY
  3. Doctors are extremely thorough and careful. COMPETENCE
  4. You complete trust doctors’ decisions about which medical treatments are best. GLOBAL TRUST
  5. Doctors are totally honest in telling their patients about all of the different treatment options available for their conditions. HONESTY
  6. Doctors think only about what is best for their patients. GLOBAL TRUST
  7. Sometimes doctors do not pay full attention to what patients are trying to tell them. COMPETENCE
  8. Doctors always use their very best skill and effort on behalf of their patients. GLOBAL TRUST
  9. You have no worries about putting your life in the hands of doctors. GLOBAL TRUST
  10. A doctor would never mislead you about anything. HONESTY
  11. All in all, you trust doctors completely. GLOBAL TRUST

Trust in Industry (adapted from Zheng et al., 2002)

  1. You think the people at pharmaceutical and medical device companies are completely honest. HONESTY
  2. Pharmaceutical and medical device companies care more about making money than about getting you the treatment you need. FIDELITY
  3. As far as you know, the people at pharmaceutical and medical device companies are very good at what they do. COMPETENCE
  4. You feel like you have to question everything pharmaceutical and medical device companies do. COMPETENCE
  5. If someone at a pharmaceutical or medical device company made a serious mistake, you think they would try to hide it. HONESTY
  6. You completely trust pharmaceutical and medical device companies to develop the best and safest medical treatments possible for patients. GLOBAL TRUST
  7. Pharmaceutical and medical device companies would never mislead you about anything. HONESTY
  8. If you have a question, you think a pharmaceutical or medical device company will give you a straight answer. HONESTY
  9. All in all, you have complete trust in pharmaceutical and medical device companies. GLOBAL TRUST