CUXOS: Clinically Useful Anxiety Outcome Scale

What this assessment is

The CUXOS, or Clinically Useful Anxiety Outcome Scale, is a 20-item self-report measure of general anxiety symptoms and their severity.

Mark Zimmerman and colleagues developed it for routine outcome measurement. The original study describes a brief form that was designed to be reliable, sensitive to change, and quick to score.

The CUXOS measures anxiety severity. It does not diagnose an anxiety disorder.

Who it was designed for

The original study tested psychiatric outpatients with different diagnoses who reported anxiety symptoms, including people who were receiving treatment for depression.

It is a general measure. It was not built to identify one specific anxiety disorder.

The CUXOS can support repeated symptom measurement during care. Keep the version, language, timeframe, and scoring method consistent when comparing results.

How it is administered

The CUXOS asks how well each statement describes the respondent during the past week, including the day of completion, with responses worth 0 to 4 points.

The respondent completes the form. The original study found that completion took less than 1.5 minutes on average in its outpatient sample.

The VA measurement toolkit describes the same 20-item, past-week format.

What it measures

The CUXOS covers psychological and physical anxiety symptoms, with six psychological items and 14 physical items described in a later validation study.

The developers calculate one total rather than separate subscale results. That total gives a broad view of anxiety severity.

Physical symptoms need context. Illness, pain, medication, sleep loss, caffeine, and other factors can resemble or increase anxiety symptoms.

How scoring works

Add the 20 responses, each worth 0 to 4 points, to produce a total that runs from 0 to 80.

Higher totals indicate more severe reported anxiety symptoms during the past week.

The published scoring method is a straight sum. The sources reviewed for this page do not establish one universal missing-response rule.

Do not silently score missing answers as zero. A service should state its completeness rule with the result.

How to interpret a CUXOS score

The developers proposed these approximate ranges:

• 0 to 10: nonanxious range
• 11 to 20: minimal range
• 21 to 30: mild range
• 31 to 44: moderate range
• 45 to 80: severe range

The original publication says these bands came from data and clinical experience, while noting that further comparison with a validated clinician measure was still needed.

Treat the labels as approximate descriptions. The word nonanxious does not rule out an anxiety disorder.

Repeated scores can show direction of change. A lower total suggests fewer reported symptoms, but it does not prove recovery or identify the reason for change.

What the score cannot tell you

The CUXOS cannot identify which anxiety disorder, if any, is present or distinguish anxiety from every medical or medication-related cause of physical symptoms.

It also cannot choose treatment or determine urgency by itself. A clinical assessment should consider triggers, avoidance, function, health, medication, substance use, and history.

A low score does not prove that anxiety is absent. A high score does not establish a diagnosis.

Evidence and limitations

The original validation study included nearly 1,000 psychiatric outpatients and found high reliability, stronger correlations with anxiety measures than other symptom domains, and sensitivity to change.

The later Korean study supported reliability and validity in a translated form. It also found substantial overlap between anxiety and depression.

The CUXOS has a shorter research history than several older anxiety measures. Results still depend on population, language, setting, and purpose.