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Table 1 Proposed study data collection elements and analysis

From: Implementation of a patient decision aid for men with localized prostate cancer: evaluation of patient outcomes and practice variation

Outcome

Participants

Data source

Analysis

Proportion given the PtDA

Men with localized prostate cancer

Clinical administrativea data (~n = 1000)

Proportion with 95 % confidence intervals for each case study

Men’s outcomes: decisional conflict

Men with localized prostate cancer

Clinical administrativea data (~n = 1000)

Linear regression (decisional conflict) to compare those who were given the PtDA to those who were not

Practitioner’s outcome: factors influencing PtDA use

Urologists, radiation oncologists, and nurses in prostate programs

Mailed survey (~n = 40)

Multivariable ordinal logistic regression analysis of practitioner’s reported use of PtDA with factors reported in the survey as covariates. Subgroup analysis will be done by types of practitioner (e.g., urologists, radiation oncologists, nurses)

Health system outcomes: uptake of treatment (including surveillance) and practitioner consultations

All men with localized prostate cancer

Clinical administrativea data (~n = 1000)

Multinomial and binary logistic regression analysis of treatment uptake and practitioner consultations with receipt of the PtDA as main predictor, and adjusting for patient demographic and clinical characteristics.

Factors influencing PtDA implementation

Key stakeholders in each program

Individual interviews (~n = 30–40)

Thematic analysis guided by the Knowledge to Action Framework

  1. aClinical administrative data for all men for 2-year period after implementing the PtDA