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OASIS

5-item measure of anxiety severity and impairment. Rate each item based on the past week.

1. 1.In the past week, how often have you felt anxious?

   • [0]0 — No anxiety
   • [1]1 — Infrequent — 1–2 times per week
   • [2]2 — Occasional — several times per week
   • [3]3 — Frequent — most days
   • [4]4 — Constant, all the time

2. 2.In the past week, when you felt anxious, how intense or severe was your anxiety?

   • [0]0 — Little or none
   • [1]1 — Mild
   • [2]2 — Moderate
   • [3]3 — Severe
   • [4]4 — Extreme

3. 3.In the past week, how often did you avoid situations, places, objects, or activities because of anxiety or fear?

   • [0]0 — None
   • [1]1 — Infrequent avoidance
   • [2]2 — Occasional avoidance
   • [3]3 — Frequent avoidance
   • [4]4 — All the time

4. 4.In the past week, how much did your anxiety interfere with your ability to do the things you needed to do at work, school, or home?

   • [0]0 — No interference
   • [1]1 — Mild — some interference
   • [2]2 — Moderate — definite but manageable
   • [3]3 — Severe — substantial impairment
   • [4]4 — Extreme — completely incapacitating

5. 5.In the past week, how much has anxiety interfered with your social life and relationships?

   • [0]0 — Not at all
   • [1]1 — A little
   • [2]2 — Moderate
   • [3]3 — A lot
   • [4]4 — Extreme — no meaningful social activity