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. Author manuscript; available in PMC: 2014 Jan 1.
Published in final edited form as: Pediatr Crit Care Med. 2013 Jan;14(1):27–36. doi: 10.1097/PCC.0b013e318253c80e

Figure 3.

Figure 3

Kaplan-Meier “freedom from event” curve for patients meeting the criterion for the primary outcome (time to doubling of the initial opioid dose). Patients not achieving this outcome were censored at the time of study exit.