Table 1.

Study question domains, specific measures, and times of assessment.

Domain	Measure	ED	1 M	6 M	1 Y*
MVC injury events	Questionnaire	●
Current pain symptoms	NRS**, Regional Pain Scale	●	●	●	●
	Scale[25]
Optimism	Life Orientation Test-Revised[26]	●
Current whiplash symptoms	Quebec classification[11]	●
Current somatic symptoms	Standardized questionnaire	●	●	●	●
Distress after MVC	Peritraumatic Distress Inventory[27]	●
Dissociative symptoms after MVC	Critical Events Perception Inventory[28]	●
Catastrophizing	Pain Catastrophizing scale[29]	●
Current somatic symptoms	Somatic symptom interview[30]
Pre-MVC General health	SF-12[31]	●
Pre-MVC Anxiety symptoms	STPI¥ Form Y[32]	●
Pre-MVC Depressive symptoms	CES-D°[33]	●
PTSD† symptoms	Impact of Event Scale-Revised[34]		●	●	●
General health	SF-12[31]		●	●	●
Demographic information	Standard items	●		●	●
Medication Use	Standard items	●	●	●	●
Alcohol and drug use	TWEAK[35], Substance Abuse Outcomes Module[36]	●		●	●
New injury or re-injury	Standard Items		●	●	●
Pain interference	Brief Pain Inventory (pain interference questions)[37]		●	●	●
Service utilization, disability/litigation claims	Standard items		●	●	●

*ED = Emergency Department, 1 M = 1 month, 6 M = 6 months, 1 Y = w year, **NRS = Numeric rating scale, ^¥State Trait Personality Inventory, ^†PTSD = Posttraumatic Stress Disorder, °Center for Epidemiologic Studies Depression Scale