“…The most frequently reported risk factors include poorer hearing thresholds or hearing loss (Chung, Gannon, & Mason, 1984;Hazell, 1990;Lindberg, Lyttkens, Melin, & Scott, 1984;Luxon, 1993;Marion & Cevette, 1991;Rosenhall & Karlsson, 1991;Stouffer & Tyler, 1990) and noise exposure (Axelsson, & Sandh, 1985;Chung et al, 1984;Coles, Davis, & Smith, 1990;Dalton, Cruickshanks, Wiley, Klein, Klein, & Tweed, 2001;McShane, Hyde, & Alberti, 1988;Meikle, & Taylor-Walsh, 1984;Rosenhall, & Karlsson, 1991;Smoorenburg, 1993;Stouffer, & Tyler, 1990). Increasing age (Coles et al, 1990;Peifer, Rosen, & Rubin, 1999), drug-induced ototoxicity (Seligmann et al, 1996), dietary factors (Paaske, Pedersen, Kjems, & Sam, 1991;Sourgen, & Ross, 1998), alcohol consumption, hypertension, elevate blood lipids, liver diseases, cervical arthrosis and socioeconomic factors (Quaranta, Assennato, & Sallustio, 1996) have also been reported to increase the risk of tinnitus.…”