Table 3.

Calibrated Anxiety Items

Item stem	Slope (discrimination)	Location threshold 1	Location threshold 2	Location threshold 3	Location threshold 4
I found it hard to focus on anything other than my anxietya	3.86	0.41	1.20	2.05	2.84
My worries overwhelmed me	3.64	0.29	0.96	1.71	2.56
I felt uneasya	3.64	−0.31	0.52	1.50	2.44
I felt fearfula	3.58	0.27	1.02	1.90	2.64
I felt like I needed help for my anxiety	3.53	0.47	0.98	1.80	2.32
I felt frightened	3.43	0.42	1.26	2.09	2.82
I felt nervousa	3.38	−0.29	0.56	1.58	2.67
I felt anxiousa	3.34	−0.27	0.53	1.51	2.38
I felt tensea	3.33	−0.59	0.24	1.18	2.23
It scared me when I felt nervous	3.32	0.55	1.17	2.00	2.70
I had difficulty calming down	3.11	0.00	0.87	1.78	2.72
Many situations made me worry	3.03	−0.41	0.48	1.39	2.28
I felt worrieda	3.02	−0.59	0.24	1.28	2.24
I had sudden feelings of panic	2.97	0.49	1.23	2.09	3.00
I felt something awful would happen	2.85	0.36	1.06	1.97	2.72
I was concerned about my mental health	2.83	0.30	0.99	1.79	2.48
I felt upset	2.72	−0.65	0.40	1.61	2.91
I felt terrified	2.57	1.08	1.75	2.66	3.53
I felt indecisive	2.52	−0.31	0.61	1.73	2.84
I had trouble relaxing	2.40	−0.54	0.33	1.30	2.34
I had trouble paying attention	2.22	−0.38	0.67	1.79	2.87
I felt fidgety	1.94	−0.10	0.81	1.95	3.18
I avoided public places or activities	1.82	0.26	0.91	1.82	2.96
I was anxious if my normal routine was disturbed	1.79	−0.11	0.81	2.05	2.99
I was easily startled	1.71	−0.06	1.10	2.14	3.05
I worried about other people’s reactions to me	1.70	−0.11	0.81	1.94	3.05
I had difficulty sleeping	1.51	−0.91	0.01	1.10	2.32
I had a racing or pounding heart	1.42	0.25	1.32	2.68	4.61
I had twitching or trembling muscles	1.26	0.50	1.39	2.62	3.92

Note. Items are rank ordered on the basis of their slope (discrimination) parameters. All items are reprinted with the permission of the Patient-Reported Outcomes Measurement Information System (PROMIS) Health Organization and the PROMIS Cooperative Group.

^aItems included in the short form.