The full version of the AUDIT comprises 10 items or questions. Over the years, several derivatives of the AUDIT have been published.
The most popular of these is the AUDIT-C, a three-item questionnaire that comprises the first three questions of the AUDIT consumption measures. The single-item AUDIT-3 comprises the third question on heavy episodic drinking alone. The AUDIT United States (US) version has consumption questions which reflect the US definition of a standard drink.
Briefer versions of the AUDIT have been shown to be convenient and effective instruments for diagnosing alcohol use disorders in a primary care setting. Various AUDIT derivatives have also been effective in evaluating special groups such as adolescents, the elderly and pregnant women.