Melatonin for tinnitus
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
| 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) | — | — |
