Table 1.

Definition of Abusive Head Trauma within the ADAPT Trial

Likelihood of Abusive Head Trauma (AHT)	Definition
None	No evidence within the medical records that AHT is being considered
Possible AHT	Clinical notes indicate that AHT is in the differential diagnosis of the treating team, but the diagnosis of AHT has not been made
Probable AHT	Clinical notes indicate that the treating team believes that the child suffered from AHT
Definite AHT	Confirmed diagnosis of intentional trauma and AHT is documented by a physician within the medical record