4-item Patient Health Questionnaire (PHQ-4) for anxiety and depression

Over the last 2 weeks, how often have you been bothered by the following problems?	Not at all	Several days	More than half the days	Nearly every day
Feeling nervous, anxious or on edge	0	1	2	3
Not being able to stop or control worrying	0	1	2	3
Feeling down, depressed or hopeless	0	1	2	3
Little interest or pleasure in doing things	0	1	2	3

Total score ≥ 3 for first 2 questions suggests anxiety.
Total score ≥ 3 for last 2 questions suggests depression.

Reproduced from: Kroenke K, Spitzer RL, Williams JB, Löwe B. An ultra-brief screening scale for anxiety and depression: The PHQ-4. Psychosomatics 2009; 50:613. Table used with the permission of Elsevier Inc. All rights reserved.

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4-item Patient Health Questionnaire (PHQ-4) for anxiety and depression