Table 1. Demographic and Clinical Variables.

Variable
Mean Age (SD)	34.4 (10.8)
Gender (% female)	71.4
Race (N per category)
Hispanic	1
Asian	3
White	22
Black	0
Native American	1
Other or mixed race	1
Mean Years Education (SD)	15.5 (2.1)
Mean IUS score
Baseline	37.96 (10.4)
Session 2	39.36 (10.5)
Session 4	37.08 (11.0)
Session 6	32.72 (12.0)
Session 8	32.50 (9.8)
Session 10	31.60 (10.5)
Mean PSWQ-A score
Baseline score	18.0 (2.6)
Session 2	18.2 (2.4)
Session 4	18.3 (2.3)
Session 6	17.3 (2.1)
Session 8	17.7 (2.6)
Session 10	16.7 (2.7)

Note: IUS: 12-item Intolerance of uncertainty scale; PSWQ-A: 8-item Penn State Worry Questionnaire