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Melatonin for tinnitus

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Appendices

Appendix 1. CENTRAL search strategy

#1 MeSH descriptor: [Tinnitus] explode all trees
#2 tinnit*
#3 #1 or #2
#4 MeSH descriptor: [Melatonin] explode all trees
#5 MeSH descriptor: [Receptors, Melatonin] explode all trees
#6 melatonin* or mel1* or "mel 1" or MT1 or MT2 or MT3 or n‐acetyl‐5‐methoxytryptamine
#7 #4 or #5 or #6
#8 #3 and #7

Table 1. Tinnitus questionnaires

Title

No. of items/factors

Psychometrics

Tinnitus Questionnaire (Hallam 1996)

52 items, 5 factors

a = 0.91 for total scale; for subscales a = 0.76 to a = 0.94

Tinnitus Handicap Questionnaire (Kuk 1990)

27 items, 3 factors

a = 0.93 for total scale

Tinnitus Severity Scale (Sweetow 1990)

15 items

Alpha not reported

Tinnitus Reaction Questionnaire (Wilson 1991)

26 items, 4 factors

a = 0.96 and a test‐retest correlation of r = 0.88

Subjective Tinnitus Severity Scale (Halford 1991)

16 items

a = 0.84

Tinnitus Handicap/Support Scale (Erlandsson 1992)

28 items, 3 factors

Alpha not reported

Tinnitus Handicap Inventory (Newman 1996)

25 items, 3 scales

a = 0.93 for total scale

Tinnitus Coping Strategy Questionnaire (Henry 1995)

33

a = 0.88

Tinnitus Coping Style Questionnaire (Budd 1995)

40

Tinnitus Cognitions Questionnaire (Wilson 1998)

Tinnitus Severity Index (Meikle 1995)

Tinnitus Acceptance Questionnaire (Westin 2008)

Figures and Tables -
Table 1. Tinnitus questionnaires