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Abstract
Background
Women with alcohol disorders have more severe problems related to their drinking than men. They have higher mortality from alcohol-related accidents and enter treatment with more serious medical, psychiatric, and social consequences.
Objective: This study assessed the effects of Intensive Motivational Interviewing (IMI), a new, 9-session counseling intervention for women with drinking problems.
Methods: A randomized clinical trial was conducted with 215 women. Most were white (83%), college educated (61%), and older (mean age 51). Half received IMI and half a standard single session of MI (SMI) along with an attention control (nutritional education).
Results: Generalized estimating equations models showed women who were heavy drinkers at baseline in the IMI condition reduced heavy drinking more than those in the SMI condition at 2-, 6-, and 12-month follow-up. Analyses of disaggregated subgroups showed IMI was most effective for women with low psychiatric severity, more severe physical and impulse control consequences associated with drinking, and higher motivation. However, formal 3-way interaction models (condition by moderator by time) showed significant effects primarily at 2 months.
Conclusions: Improvements associated with IMI were limited to heavy drinking and varied among subgroups of women. Studies of women with more diverse characteristics are needed.