Measuresa | Operationalization of variables |
---|---|
Patient Quality of Engagement in Decision Making (PQED) | |
Prostate Cancer and Screening Knowledge [13] | 20 questions (true/false) • Rating: 1 point for each correct answer • Total score ranges from 0 to 20 • Higher values mean higher knowledge of prostate cancer and screening |
Decisional Confidence [14] | 10 questions (yes/no) • Rating: 4 points for each “YES,” 0 points for each “NO,” 2 points for each “NOT SURE” • Total score ranges from 0 to 40 • Higher values mean higher confidence in the decision made |
Decisional Self-efficacy questionnaire [15] | 4 questions (Likert scale) • Rating: 1 to 5 • Total score ranges from 4 to 20 • Original scale scores were reversed. • Higher values mean higher patient decisional efficacy in the communication with the PCP |
Satisfaction with Decision [16] | 6 questions (Likert scale) • Rating: 1 to 5 • Total score ranges from 6 to 30 • Higher values mean higher satisfaction with the decision made |
Preference-Congruent Decision Making (PCDM) | |
Intention-to-screen [17] | 1 question (yes/no) • Rating: 0 (no intention to screen) or 1 (intention to screen) |
Actual PSA-screening tests | 1 question (yes/no) • Rating: 1 (patient has had at least one PSA-test) or 0 (patient has NOT had PSA-tests) from medical encounter (visit #2) to follow-up (visit #3) |
Congruence | 1 question (positive/negative) Ratings: • PCDM = 1 (POSITIVE: congruence between patient intention and real action) for: • Patients with intention-to-screen score = 1 (intention = yes) and PSA-screening score = 1 (PSA = yes) • Patients with intention-to-screen score = 0 (intention = no) and PSA-screening score = 0 (PSA = no) • PCDM = 0 (NEGATIVE: in-congruence between intention and real action) for: • Patients with intention-to-screen score = 1 (intention = yes) and PSA-screening score=0 (PSA = no) • Patients with intention-to-screen score= 0 (intention = no) and PSA-screening score = 1 (PSA = yes) |