Table 2: The point system of the Gibson score (adapted from[5, page 109]).

ParameterDescriptionPoints

Vertigo(i) Rotational vertigo1
(ii) Attacks of rotational vertigo lasting over 10 min1
(iii) Rotational vertigo associated/linked with one or more of: hearing loss, tinnitus, or aural pressure1

Hearing(i) Sensorineural hearing loss1
(ii) Fluctuating sensorineural hearing loss1
(iii) Hearing loss or fluctuation associated/linked with one or more of vertigo, tinnitus, or aural pressure1

Tinnitus(i) Peripheral tinnitus lasting over 5 min1
(ii) Tinnitus fluctuating or changing with one or more of vertigo, hearing loss, or aural pressure1

Aural pressure(i) Constant aural pressure lasting over 5 min1
(ii) Aural pressure fluctuating or changing with one or more of vertigo, hearing loss, or tinnitus1

Maximum score10