Table 2.

Means, standard deviations, and item–total correlations of the MHS: A.

Item	GAD (N = 50) M (SD)		Control (N = 477) M (SD)		Total (N = 527) M (SD)		rtot		Ordinal α if item is deleted
	Offline	Online	Offline	Online	Offline	Online	Offline	Online	Offline	Online
1 Excessive anxiety	2.52 (1.05)	2.56 (1.13)	0.52 (0.81)	0.57 (0.89)	0.71 (1.02)	0.76 (1.08)	0.862***	0.845***	0.97	0.97
2 Uncontrollable worry	2.58 (1.05)	2.82 (0.98)	0.70 (0.98)	0.75 (0.98)	0.88 (1.13)	0.95 (1.15)	0.847***	0.865***	0.97	0.97
3 Restlessness	2.52 (1.18)	2.50 (1.06)	0.51 (0.83)	0.60 (0.88)	0.70 (1.05)	0.78 (1.05)	0.872***	0.868***	0.97	0.97
4 Fatigue	2.67 (1.16)	2.46 (1.11)	0.76 (1.03)	0.77 (0.97)	0.94 (1.18)	0.93 (1.10)	0.845***	0.799***	0.97	0.97
5 Difficulty paying attention	2.48 (1.13)	2.52 (1.00)	0.57 (0.89)	0.62 (0.88)	0.75 (1.08)	0.80 (1.05)	0.833***	0.838***	0.97	0.97
6 Irritability	2.58 (1.18)	2.56 (1.05)	0.67 (1.01)	0.74 (0.99)	0.85 (1.17)	0.91 (1.13)	0.857***	0.854***	0.97	0.97
7 Muscle tension	2.58 (1.25)	2.62 (1.18)	1.01 (1.16)	1.05 (1.12)	1.16 (1.26)	1.20 (1.21)	0.790***	0.801***	0.97	0.97
8 Insomnia	2.90 (1.23)	2.74 (1.19)	1.01 (1.18)	1.06 (1.16)	1.19 (1.31)	1.22 (1.26)	0.785***	0.767***	0.97	0.97
9 Impairment in daily function	2.46 (1.15)	2.58 (1.16)	0.36 (0.77)	0.45 (0.88)	0.56 (1.02)	0.65 (1.11)	0.843***	0.857***	0.97	0.97
10 Chest discomfort	2.42 (1.21)	2.46 (0.99)	0.68 (0.99)	0.61 (0.92)	0.85 (1.14)	0.78 (1.08)	0.817***	0.821***	0.97	0.97
11 Feeling on edge	2.64 (1.12)	2.74 (0.83)	0.71 (0.96)	0.77 (0.96)	0.89 (1.13)	0.96 (1.11)	0.862***	0.870***	0.97	0.97
MHS: A Total	28.30 (9.96)	28.56 (8.44)	7.50 (8.28)	7.99 (8.32)	9.48 (10.42)	9.94 (10.28)	0.908***a		-	-

^***P <0.001, GAD, generalized anxiety disorder; a, correlational coefficient between the online version and offline version of the MHS: A.