tinnitus is a heterogeneous condition associated with audiological and/or mental disorders. Chronic, severe tinnitus is reported in 1% of the population and it shows a relevant heritability, according to twins, adoptees and familial aggregation studies. The genetic contribution to severe tinnitus is unknown since large genomic studies include individuals with self-reported tinnitus and large heterogeneity in the phenotype. The aim of this study was to identify genes for severe tinnitus in patients with extreme phenotype.This study has been funded by H2020 MSCA-ITN-2016–722046, the H2020-SC1-2019-848261, and the GNP-182 GENDER-Net Co-Plus Fund (JALE and CRC). The project leading to these results has received funding from “la Caixa” Foundation (ID 100010434), under agreement LCF/PR/DE18/52010002 (JALE). This project is a part of European School of Interdisciplinary Tinnitus (ESIT) research and Sana Amanat is a PhD student in Biomedicine Program at the University of Granada. CRC received additional funding from Svenska Läkaresällskapet (SLS- 779681 ), Hörselforskningsfonden (503). The data handling for STOP and SweGen cohorts were enabled by resources provided by the Swedish National Infrastructure for Computing (SNIC) at UPPMAX partially funded by the Swedish Research Council through Grant agreement No. 2018-05973 . The time provided by JS was funded by the University of Nottingham, Nottingham Research Fellowship. PM was supported by the BMBF Treat-ION Grant ( 01GM1907 ) and the DFG Research Unit FOR2715 (FNR INTER/DFG/17/ 11583046 ).Ye
