Table 1

Convergent validity between tinnitus questionnaires, reported by previous studies.

Study (authors, year)	N	Tinnitus questionnaires	Correlation coefficients	P value
Baguley et al 200038	78	TFI/TQ	0.881	<0.001
Zenner et al 200544	273	TQ/VAS-L	0.54	<0.001
		TQ/VAS-A	0.66	<0.001
		TQ/VAS-C	0.58	<0.001
Huang et al 200645	20	*THI/VAS-L*	*0.64*	*0.002*
Zeman et al 201239	1318	THI/TQ	0.9	<0.05
Müller et al 201646	260	TFI/THI	0.85	<0.01
Fackrell et al 201625	294	TFI/THI	0.82	NI
		TFI/VAS-L	0.46	NI
		*THI/VAS-L*	*0.41*	NI
Hoff and Kähäri 201740	100	TFI/THI	0.8	NI
Hoff and Kähäri 201740	100	TFI/VAS-D	0.69	NI
Nascimento et al 201947	148	*THI/VAS-L*	*0.57*	*0.001*
Jacquemin et al 201941	100	TFI/TQ	0.82	NI
Boecking et al 202142	210	TFI/TQ	0.78	NI
		TFI/THI	0.8	NI
		THI/TQ	0.83	NI

The rows with similar emphases (bold, italic and bolditalic) correspond to a comparison between two similar tinnitus questionnaires.
N, sample size; NI, no information; TFI, Tinnitus Functional Index; THI, Tinnitus Handicap Inventory; TQ, Tinnitus Questionnaire; VAS-A, Visual Analogue Scale Tinnitus Annoyance; VAS-C, Visual Analogue Scale Tinnitus Comfort; VAS-D, Visual Analogue Scale Tinnitus Distress; VAS-L, Visual Analogue Scale Tinnitus Loudness.