The GRBASI is used to grade voice characteristics of a patient.
GRBASI components:
(1) overall grade or severity (G)
(2) roughness of the voice (R)
(3) breathiness (B)
(4) asthenia (A)
(5) strain (S)
(6) instability (I)
|
Abnormality
|
Points
|
|
normal
|
0
|
|
mild alteration
|
1
|
|
moderate alteration
|
2
|
|
severe alteration
|
3
|
total score =
= SUM(points for all 6 parameters)
Interpretation:
• minimum score: 0
• maximum score: 18
• The higher the score the more abnormal the voice quality.
