TABLE 1.

Distributions and univariate associations between socio- demographic characteristics and self-reported pain with and without controls for peritraumatic distress and dissociation in the Freeze 1 AURORA MVC sample (n = 666)

	8- week				2- week				8- week controlling 2- week
	Model 3a		Model 4b		Model 1a		Model 2b		Model 5c		Model 6d
	OR	(95% CI)	OR	(95% CI)	OR	(95% CI)	OR	(95% CI)	OR	(95% CI)	OR	(95% CI)
Age
50+	2.6*	(1.5, 4.5)	2.7*	(1.5, 4.6)	1.5	(0.8, 2.8)	1.5	(0.8, 2.9)	2.8*	(1.5, 5.1)	2.8*	(1.5, 5.2)
35–49	1.9*	(1.2, 3.0)	1.9*	(1.2, 3.1)	1.5	(0.9, 2.6)	1.6	(0.9, 2.7)	1.8*	(1.1, 3.1)	1.9*	(1.1, 3.1)
25–34	1.2	(0.8, 1.8)	1.2	(0.8, 1.9)	1.2	(0.7, 2.1)	1.3	(0.8, 2.2)	1.1	(0.7, 1.8)	1.2	(0.7, 1.9)
18–24	Ref	–	Ref	–	Ref	–	Ref	–	Ref	–	Ref	–
χ23*	17.1*		16.7*		2.8		3.1		14.7*		14.3*
Sex (female)	1.8*	(1.2, 2.5)	1.6*	(1.1, 2.3)	2.2*	(1.5, 3.4)	2.2*	(1.4, 3.4)	1.4	(0.9, 2.1)	1.2	(0.8, 1.9)
Race/ethnicity
Non- Hispanic Black	1.1	(0.8, 1.6)	1.1	(0.8, 1.6)	0.8	(0.5, 1.3)	0.8	(0.5, 1.3)	1.1	(0.7, 1.7)	1.2	(0.8, 1.7)
Non- Hispanic White	Ref	–	Ref	–	Ref	–	Ref	–	Ref	–	Ref	–
Hispanic	1.4	(0.8, 2.5)	1.4	(0.7, 2.5)	0.9	(0.4, 1.8)	0.8	(0.4, 1.7)	1.4	(0.7, 2.8)	1.4	(0.7, 2.9)
Other	0.7	(0.3, 1.7)	0.7	(0.3, 1.8)	0.4	(0.1, 1.1)	0.4	(0.1, 1.0)	0.9	(0.3, 2.7)	1.0	(0.3, 2.9)
χ23*	2.1		2.0		3.4		3.6		1.2		1.3
Marital status
Married/ cohabitating	Ref	–	Ref	–	Ref	–	Ref	–	Ref	–	Ref	–
Previously marriede	1.2	(0.7, 2.0)	1.1	(0.7, 1.9)	0.9	(0.5, 1.6)	0.8	(0.5, 1.6)	1.3	(0.7, 2.4)	1.3	(0.7, 2.3)
Never married	0.8	(0.6, 1.2)	0.8	(0.6, 1.2)	0.7	(0.5, 1.1)	0.7	(0.5, 1.1)	0.9	(0.6, 1.3)	0.9	(0.6, 1.3)
χ22*	2.3		2.0		2.2		2.1		2.1		1.7
Education
College graduate	Ref	–	Ref	–	Ref	–	Ref	–	Ref	–	Ref	–
Some college	1.2	(0.8, 1.9)	1.2	(0.8, 1.8)	1.0	(0.6, 1.8)	1.0	(0.6, 1.7)	1.2	(0.8, 2.0)	1.2	(0.7, 1.9)
High school	0.9	(0.5, 1.4)	0.8	(0.5, 1.4)	0.7	(0.4, 1.3)	0.7	(0.4, 1.3)	1.0	(0.6, 1.7)	1.0	(0.6, 1.6)
graduate
Less than high	2.2*	(1.1, 4.5)	2.1*	(1.0, 4.2)	1.0	(0.5, 2.1)	0.9	(0.4, 1.9)	2.6*	(1.2, 5.6)	2.4*	(1.1, 5.2)
school
χ23*	8.5*		7.0		2.1		1.8		6.6		5.7
Incomef
More than $35K	Ref	–	Ref	–	Ref	–	Ref	–	Ref	–	Ref	–
$19–35K	1.3	(0.9, 1.9)	1.2	(0.8, 1.7)	1.6	(1.0, 2.6)	1.5	(0.9, 2.4)	1.1	(0.7, 1.7)	1.0	(0.7, 1.6)
Less than $19K	1.5*	(1.0, 2.2)	1.4	(1.0, 2.1)	1.3	(0.8, 2.1)	1.2	(0.8, 2.0)	1.4	(0.9, 2.2)	1.4	(0.9, 2.1)
χ22*	4.3		3.0		3.6		2.3		2.5		2.1
Employed (yes vs. no)	0.7	(0.4, 1.0)	0.7	(0.5, 1.1)	0.8	(0.5, 1.3)	0.8	(0.5, 1.4)	0.7	(0.5, 1.1)	0.8	(0.5, 1.2)

Abbreviations: CI, confidence interval; MVC, motor vehicle collision; OR, odds ratio.

^aWithout controls for peritraumatic distress/dissociation.

^bWith controls for peritraumatic distress/dissociation.

^cWith controls for 2- week pain (both continuous and categorical) but not peritraumatic distress/dissociation.

^dWith controls for 2- week pain (both continuous and categorical) and peritraumatic distress/dissociation.

^eSeparated, widowed, or divorce.

^fFamily income before taxes.

^*Significant at the 0.05 level, two- sided test.