Table 1: Comparison of changes in tinnitus visual analog scaling and tinnitus handicap inventory scores immediately and 3 months after intervention between groups.

Variable [number (%)]Immediately after intervention3 months after intervention
Laser therapy groupPlacebo group valueLaser therapy groupPlacebo group value

Visual analog scale score
 No difference22 (54)35 (85)0.00629 (70)40 (97)0.003
 <50% reduction7 (17)3 (7.5)5 (13)1 (3)
 ≥50% reduction12 (29)3 (7.5)7 (17)0 (0)

Tinnitus handicap inventory score
 No difference21 (51)36 (87)0.00127 (66)40 (97)0.001
 <50% reduction2 (6)1 (3)1 (3)0 (0)
 ≥50% reduction18 (43)4 (10)13 (31)1 (3)