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Methodological Challenges in Studying Patient-Centered Communication in Cancer Care

Methodological Challenges in Studying Patient-Centered Communication in Cancer Care. Ron D. Hays, Ph.D. UCLA Department of Medicine May 16, 2006, 1:15-1:30pm. Five M’s for Process and Outcomes. 1) Measurement 2) Monitoring over time 3) Mediators 4) Moderators

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Methodological Challenges in Studying Patient-Centered Communication in Cancer Care

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  1. Methodological Challenges in Studying Patient-Centered Communication in Cancer Care Ron D. Hays, Ph.D. UCLA Department of Medicine May 16, 2006, 1:15-1:30pm

  2. Five M’s for Process and Outcomes • 1) Measurement • 2) Monitoring over time • 3) Mediators • 4) Moderators • 5) Making Sense of Associations

  3. Multiple Methods of Measuring Patient-Centered Communication (PCC) • Patient report • Physician report • Peer assessment • Observational measures • Videotape • Audiotape • Standardized patients • Medical records • Care diaries

  4. Fostering healing relationships Exchanging information Eliciting and validating emotions Managing uncertainty Making decisions Navigating the system How is a “healing” relationship operationalized? What is the basis for determining when uncertainty has been managed optimally? How far do existing measures take us in measuring uncertainty—e.g., MUIS/Merle Mischel’s measures: 1) parents’ perception of uncertainty in illness scales; 2) adult uncertainty in illness scale What is a decision? What is an informed decision? Measuring the PCC Functions

  5. Monitoring over time • In contrast to single physician and cross-sectional design • Doctors nested within patients • Multiple providers (physicians, nurses), multiple interactions over time, and multiple channels of communication (face-to-face, phone, email) • EMRs and PHRs

  6. Evaluating Outcomes • PCC should result in patients having more positive perceptions of care, better functioning and well-being, and increased survival • Mediators and moderators not well understood

  7. Quality of Care Outcomes of Care Patient-reported Outcomes Technical Quality Interpersonal Quality (including Communication) Clinical Outcomes Quality of Care and Outcomes of Care

  8. Testing Mediators Pain (C) Patient Activation (A) Adherence (B) Oliver, Kravitz, Kaplan and Meyers (2001)

  9. Evaluation of Mediation • Model 1: A direct effect on C • Model 2: A direct effect on B • Model 3: B direct effect on C* • Model 4: In multivariate model predicting C from A and B, A direct effect on C reduced compared to Model 1

  10. Evaluating Moderators • Moderator = significant interaction • Education is a moderator of relationship between patient involvement in care and satisfaction with care if it has a positive effect for those with at least a high school degree but a non-significant effect for those without a high school degree • Possible moderators (individual, group, organizational)? • Coping style • Family resilency

  11. Making Sense of Associations • Non-randomized study designs • Self-selection of treatment • Statistical Adjustments • Casemix adjustment • Age, education, prior health, etc. • Propensity models • Unmeasured burden of illness • Sicker patients receive more intensive process of care. • Standard regression analyses show that more intensive and higher quality care is associated with worse outcomes • Instrumental variable models may help account for unmeasured burden of illness • McClellan, McNeil, & Newhouse (1994)

  12. Paths mentioned • Continuity relationship -> better outcomes • “Effect modifier” (Kurt Stange) or main effect • Main effect • PCC -> Treatment acceptance -> Outcomes (Ed Wagner) • PCC -> Imagine disease experience -> Better decisions (Albert Mulley) • Terror reduction -> Think clearly -> Better decisions (Tim Quill) • Better decision is consistent with values (satisfied with decision) • Nurse call -> self-efficacy/empowerment-> outcome (Merle Mischel) • Structural differences • NCI comprehensive care clinic (Terrance Albrecht) • Health care team -> facilitate access to information (Steve Taplin) • Medical home -> coordinate info (Ed Wagner)

  13. Discussion

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