Fig 2.

| One-way sensitivity testing around total replication costs ($193,971) for key recruitment activities and resources. Each row shows the changes in cost, across the range of replication estimate values, from the total replication. The parameters are sorted in descending order by their impact on the recruitment estimates. Longer bars indicate the most important parameters, giving the diagram its “tornado” appearance. Note: HbA1c, hemoglobin A1c; PCP, primary care provider; EHR, electronic health record.