Psychophysiological Associations between Chronic Tinnitus and Sleep: A Cross Validation of Tinnitus and Insomnia Questionnaires

Table 1

Characterization of the sleep items of the Regensburg Insomnia Scale and the Tinnitus Questionnaire sleep subscore items and comparison of the mean scores of the present tinnitus sample with the validation sample of the Regensburg Insomnia Scale.

Items		Insomnia sample	Tinnitus sample	Difference score
		n = 218	n = 182
	Regensburg Insomnia Scale
1	Sleep onset latency	1.82 ± 1.37	1.21 ± 1.13	0.61
2	Sleep duration	1.65 ± 0.86	1.02 ± 0.88	0.63
3	Disturbed sleep	3.11 ± 0.97	2.27 ± 1.2	0.84
4	Early awakening	2.86 ± 1.03	2.25 ± 1.09	0.61
5	Awaking by sounds	2.77 ± 1.08	2.25 ± 1.07	0.52
6	Feeling of no night sleep	2.07 ± 0.97	1.53 ± 1.04	0.54
7	Thinking about sleep	2.41 ± 0.92	1.79 ± 1.08	0.62
8	Afraid of going to bed	1.89 ± 1.24	1.48 ± 1.25	0.41
9	Daytime functioning	2.31 ± 1.03	2.12 ± 1.09	0.19
10	Medication intake	1.7 ± 1.56	1.52 ± 1.67	0.18
	Tinnitus Questionnaire
4	Awakening more often due to tinnitus
12	Early awakening due to tinnitus
31	Sleep as general problem
36	Sleep onset latency due to tinnitus