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Table 3 Positive predictive values for screening codes according to time since end of days of supply

From: Development of an algorithm to identify serious opioid toxicity in children

  n n, confirmed PPV (%)
Entire sample 168 85 50.6
Date of prescription fill through 7 days following end of days of supply 121 69 57.0
Days 8–14 following end of days of supply 47 16 34.0