Table 3: Mean values of self-version and staff-version (NHHI) ( ).

Questionnaire Hearing loss level
NormalSlightMildModerateModerately severeSevereProfound

Self-versionMale 3.5016.0828.0127.1539.014042
Female1.1012.1430.4445.2775.0374.2980

Staff-versionMale7.0311.7040.2139.1848.244351
Female2.401.808.0762.4471.087782