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85,173 items of data are available, covering 85,173 participants, encoded using Data-Coding 523.
Question asked: "How often during the last year have you been unable to remember what happened the night before because you had been drinking?"
Question was asked when the sum of the answer to Field 20403 plus the answer to Field 20416 was 3 or above. Participants responding "prefer not to answer" to one of these trigger questions were scored as 1 for that question.