Table 1.2.

Tinnitus Handicap Inventory Severity Scale [14].

Grade	Score	Description
1	0–16	Slight: Only heard in quiet environment, very easily masked. No interference with sleep or daily activities
2	18–36	Mild: Easily masked by environmental sounds and easily forgotten with activities. May occasionally interfere with sleep but not daily activities
3	38–56	Moderate: May be noticed even in the presence of background or environmental noise, although daily activities may still be performed
4	58–76	Severe: Almost always heard, rarely, if ever, masked. Leads to disturbed sleep pattern and can interfere with ability to carry out normal daily activities. Quiet activities affected adversely.
5	78–100	Catastrophic: Always heard, disturbed sleep patterns, difficulty with any activity

Tinnitus Handicap Inventory Severity Scale.