Tinnitus Handicap Inventory

The Tinnitus Handicap Inventory (THI) is a 25-item self-report scale that quantifies the functional, emotional, and catastrophic effects of tinnitus on daily life, work, and psychosocial well-being. Developed by Newman, Jacobson, and Spitzer in 1996, it has become the gold-standard outcome measure for assessing tinnitus-related handicap in clinical practice and research. The THI enables clinicians to track disease burden, monitor therapeutic response, and identify patients at risk for severe psychological distress.