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The CAGE questionnaire, developed by Dr. John Ewing and Beatrice A Rouse in 1970, is a screening instrument used to identify problem drinking. It is named for its four questions,
Two "yes" responses indicate that the respondent should be investigated further.
The questionnaire asks the following questions:
- Have you ever felt you needed to Cut down on your drinking?
- Have people Annoyed you by criticizing your drinking?
- Have you ever felt Guilty about drinking?
- Have you ever felt you needed a drink first thing in the morning (Eye-opener) to steady your nerves or to get rid of a hangover?