Alcoholic subtypes and the MacAndrew Alcoholism Scale

Area of Science:

• Psychiatry
• Psychology
• Addiction Medicine

Background:

• The MacAndrew Alcoholism Scale (MAC) is a tool used to assess alcoholism.
• Understanding different alcoholic typologies is crucial for effective treatment.
• Previous research suggests variations in alcoholic presentation and characteristics.

Purpose of the Study:

• To investigate the characteristics of alcoholics scoring in the nonalcoholic range on the MAC scale.
• To compare these individuals with alcoholics who score in the alcoholic range on the MAC.
• To explore the relationship between MAC scores and established alcoholic typologies.

Main Methods:

• Matched case-control study design.
• Inclusion of 90 alcohol-dependent individuals (45 high MAC, 45 low MAC).
• Comparison of demographic, drinking behavior, legal problems, and psychiatric history between groups.

Main Results:

• High MAC alcoholics exhibited gregariousness, social drinking, belligerence, aggression, and significant legal problems.
• Low MAC alcoholics were less outgoing, preferred solitary drinking, and experienced diverse serious alcohol-related consequences.
• No increased likelihood of nonsubstance use psychiatric history in low MAC alcoholics.
• High MAC alcoholics were more likely to be Type II ( Cloninger et al.) and low MAC alcoholics Type I.

Conclusions:

• The MAC scale may differentiate distinct subtypes of alcoholism.
• Low MAC alcoholics represent a less outwardly distinct but still severely affected group.
• MAC scores show a relationship with Cloninger's Type I and Type II alcoholic typologies.