Self-reported effects of alcohol use on symptoms of schizophrenia.

Forty-two acute inpatients with schizophrenia, 23 of whom had a past or current alcohol use disorder, were given a structured interview that focused on reasons for alcohol use and changes in perceived effects of alcohol on psychiatric symptoms from the first episode of illness to the current episode. Drinking for sociability or celebration decreased over time, while drinking to relieve depression or problems increased. Subjects who experienced hallucinations, paranoia, or both significantly more often reported an increase in these symptoms after drinking. Subjects with an alcohol-related diagnosis were significantly more likely than those without such a diagnosis to cite relief of depression and problems or worries as a reason for alcohol use.