Table 2.

Correlations between first-order factors in the Confirmatory Factor Analysis. The correlations between the first-order factors were in general strong, with 85% above 0.60. The Auditory factor showed the weakest correlations with all the other factors. 1 = Intrusiveness; 2 = Sense of control; 3 = Cognition; 4 = Sleep; 5 = Auditory; 6 = Relaxation; 7 = Quality of life; 8 = Emotional. Values presented in bold are below or above the recommended criteria (<0.30 to >0.85).

Factor	1	2	3	4	5	6	7	8
(1) Intrusiveness	1
(2) Sense of control	0.842	1
(3) Cognitive	0.640	0.795	1
(4) Sleep	0.507	0.570	0.562	1
(5) Auditory	0.328	0.223	0.330	0.114	1
(6) Relaxation	0.655	0.814	0.725	0.613	0.239	1
(7) Quality of life	0.655	0.733	0.782	0.465	0.413	0.687	1
(8) Emotional	0.676	0.855	0.784	0.543	0.197	0.722	0.855	1