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PMC full text: | Published online 2016 May 17. doi: 10.1371/journal.pmed.1002019
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Fig 4
Net number of unnecessary interventions avoided if patients in the external validation sample were screened using PICKUP.
The net reduction (y-axis) is the number of unnecessary interventions avoided without missing any patients who develop chronic LBP. The cutoff threshold (x-axis) is the range of potential predicted risk cutoffs where a patient or physician would decide to pursue further intervention.