How-To Guides

Yes. In this cross-sectional study of 50 euthymic patients with alcohol use disorder (AUD) and a comorbid mood disorder, patients with major depressive disorder (MDD) had significantly higher alcohol craving severity than patients with bipolar disorder (BD), based on Visual Analog Scale (VAS) scores. The MDD group also had significantly higher AUDIT scores and a greater percentage of carbohydrate-deficient transferrin (CDT) than the BD group.

Euthymia was defined using clinician-rated mood scales at study enrollment. Patients had to have a Montgomery-Asberg Depression Rating Scale score of ≤4 to exclude residual depressive symptoms and a Young Mania Rating Scale score of <12 to exclude subthreshold manic symptoms.

Yes. In both diagnostic groups, higher alcohol craving severity was positively associated with higher alcohol use severity. VAS craving scores were positively correlated with AUDIT scores in the MDD group (P<.001) and in the BD group (P<.001).

Yes. Higher plasma homocysteine concentrations were positively correlated with greater alcohol craving severity in both groups. The association was significant in patients with MDD and AUD (P=.000848) and in patients with BD and AUD (P<.001).

Yes. CDT, a biomarker of chronic alcohol consumption, was positively correlated with alcohol craving severity in both diagnostic groups. The correlation between VAS craving scores and CDT percentage was significant in the MDD group (P=.020063) and in the BD group (P=.024818).

No. The study found no significant correlations between alcohol craving severity and age, gender, education level, or employment status in either the MDD group or the BD group. In this sample, craving was more closely linked to alcohol-related measures and biomarkers than to sociodemographic characteristics.

The study enrolled 50 adults with AUD and a comorbid mood disorder who were euthymic at the time of assessment. Of these, 31 had AUD comorbid with MDD and 19 had AUD comorbid with BD; the bipolar group included 5 patients with BD I and 14 with BD II. Participants were recruited consecutively over 12 months from a public outpatient addiction treatment service in Alba, Italy.

This was a prospective, observational, cross-sectional study. That design allows comparison of craving severity and biomarker associations between euthymic patients with MDD and BD at a single point in time, but it does not establish causality or the temporal direction of the observed associations.

The findings suggest that mood disorder subtype matters in dual diagnosis: euthymic patients with MDD and AUD showed higher craving intensity and greater alcohol-related severity than euthymic patients with BD and AUD. The authors also found that craving tracked with AUDIT scores, CDT, and homocysteine in both groups, suggesting that combining clinical assessment with biological markers may help identify patients with more severe dual-diagnosis profiles.

• The sample size was small, which may have limited statistical power and reproducibility.
• The two groups were unequal in size, with 31 patients in the MDD group and 19 in the BD group.
• There were few female participants, limiting sex-stratified analyses.
• The study was conducted at a single outpatient addiction treatment center in Italy, which may limit generalizability.
• The BD group included both BD I and BD II, and the sample was too small to analyze those subtypes separately.
• Because the study was cross-sectional, it cannot determine causality.