Self-Reported Personality Functioning in Patients With Substance Use Disorders: Similarities and Specifics With...

Area of Science:

• Psychiatry and Psychology
• Clinical Psychology
• Personality Science

Background:

• Understanding personality functioning is crucial for tailoring substance use disorder (SUD) treatments.
• The Czech Level of Personality Functioning Scale-Self Report (LPFS-SR) is a tool for assessing personality functioning.

Purpose of the Study:

• To examine self-reported personality functioning in patients with SUD compared to the general population.
• To investigate gender-specific differences in personality functioning.
• To evaluate the psychometric properties of the Czech LPFS-SR.

Main Methods:

• Two samples were used: 368 SUD patients and 497 general population volunteers.
• Participants completed self-assessment tools, including the Personality Inventory for DSM-5 (PID-5) and the LPFS-SR.
• Psychometric properties, including internal consistency and validity of the Czech LPFS-SR, were examined.

Main Results:

• The Czech LPFS-SR demonstrated high internal consistency (Cronbach's alpha ≥ 0.66).
• Strong correlations were found between the LPFS-SR and the PID-5 (0.21–0.77).
• Principal component analysis supported a single-component structure for the LPFS-SR, accounting for over 78% of the variance.

Conclusions:

• The Czech LPFS-SR is a valid and reliable instrument for assessing personality functioning.
• The scale possesses acceptable discriminating capacity for use in research and clinical settings.
• Gender-specific cut-off scores were identified, highlighting the importance of considering gender in assessments of SUD patients.