The Anxiety Status Inventory (ASI) was developed by Zung as a rating instrument for anxiety disorders. 20 affective and somatic symptoms associated with anxiety are graded by an observer based on patient interview.
Affective and Somatic Symptoms of Anxiety - 20 items:
(1) anxiousness
(2) fear
(3) panic
(4) mental disintegration
(5) apprehension
(6) tremors
(7) body aches and pains
(8) easy fatigability, weakness
(9) restlessness
(10) palpitation
(11) dizziness
(12) faintness
(13) dyspnea
(14) paresthesias
(15) nausea and vomiting
(16) urinary frequency
(17) sweating
(18) face flushing
(19) insomnia
(20) nightmares
Severity of observed or reported responses
Points
none
1
mild
2
moderate
3
severe
4
Interpretation:
• minimum severity score: 20
• maximum severity score: 80
• The higher the score, the greater the symptoms associated with anxiety.
The ASI index converts the raw score by dividing the raw score by 80, then multiplying by 100.
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